help me
This commit is contained in:
@@ -1,36 +0,0 @@
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#!/bin/bash
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# todo:
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# offline option
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## dd raw .img
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## enum partitions
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### file zero fill empty space of good partitions
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### dd zero fill unformatted space and such
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### xz compress
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# online option
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## enum partitions
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## attempt to mount all possible
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## file zero fill them
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## dd zero fill unformatted space
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## take offline for xz inline rip
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set -e # fail explicitly on any error
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# todo: interactive, cli options
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# disk=/dev/sda
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outname="$HOME/$(date +%Y-%m-%d-%H%M-%Z)"
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outname="$outname.img.xz"
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# do the disk image dump using inline xz
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echo "runnin inline xz on $disk to file $outname"
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sudo dd if=$disk status=progress bs=1M | xz -c > "$outname"
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# test xz integrity
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echo "testing disk image integrity"
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xz -t -v "$outname"
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# make the sha256 file
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echo "generating sha256 checksum file"
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sha256sum "$outname" | tee "$outname.sha256"
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echo "all donesies :3"
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+19
-21
@@ -42,9 +42,10 @@ cleanup () {
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}
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# cleanup any errant files on error/termination
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trap cleanup ERR
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trap cleanup SIGINT
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trap cleanup SIGTERM
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## disable dis shit fo now
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# trap cleanup ERR
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# trap cleanup SIGINT
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# trap cleanup SIGTERM
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echo -e "\n\n\nSTARTING DUMP OPS\n\n\n"
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@@ -82,8 +83,9 @@ webhook "Changing perms abd ownership on $img_name"
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sudo chown princesspi:princesspi "$img_name"
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sudo chmod 660 "$img_name"
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webhook "generating sha256 checksum of $img_name (from $disk) to $img_name.sha256 (Script Has Run $SECONDS Seconds)"
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sha256sum "$img_name" | tee -a "$img_name.sha256"
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# fuckin nope rn
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# webhook "generating sha256 checksum of $img_name (from $disk) to $img_name.sha256 (Script Has Run $SECONDS Seconds)"
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# sha256sum "$img_name" | tee -a "$img_name.sha256"
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if [[ "$picheck" =~ [nN] ]]; then
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webhook "Doing non-pi xz compression on $img_name into $img_name.xz"
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@@ -94,28 +96,24 @@ else
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## -r use advanced filesystem repair option if the normal one fails
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## -Z xz compression
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## -a compress using multiple cores
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## -n disable update check
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## disavble upgrade check
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webhook "Doing pi compress using pishrink from $img_name ($disk) to $img_name.xz (Script Has Run $SECONDS Seconds)"
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pishrink -v -r -Z -a "$img_name" | tee -a "$log"
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pishrink -v -r -Z -a -n "$img_name" | tee -a "$log"
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fi
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# pishrink
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## -v verbose
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## -r use advanced filesystem repair option if the normal one fails
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## -Z xz compression
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## -a compress using multiple cores
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webhook "doing pishrink from $img_name ($disk) to $img_name.xz (Script Has Run $SECONDS Seconds)"
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pishrink -v -r -Z -a "$img_name" | tee -a "$log"
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webhook "testing xz integrity: $img_name.xz (Script Has Run $SECONDS Seconds)"
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xz -t -v "$img_name.xz" | tee -a "$log"
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webhook "xz integrity response code: $?"
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# fuck yourself
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# webhook "testing xz integrity: $img_name.xz (Script Has Run $SECONDS Seconds)"
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# xz -t -v "$img_name.xz" | tee -a "$log"
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# webhook "xz integrity response code: $?"
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webhook "Generating sha256 checksums of $img_name.xz to $img_name.xz.sha256 (Script Has Run $SECONDS Seconds)"
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sha256sum "$img_name.xz" | tee -a "$img_name.xz.sha256"
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if [ -f "$img_name" ]; then
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webhook "$img_name still there! Deleting by force!"
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sudo rm -f "$img_name"
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fi
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# do not fuckin deletee this shit till it works right
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# if [ -f "$img_name" ]; then
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# webhook "$img_name still there! Deleting by force!"
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# sudo rm -f "$img_name"
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# fi
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webhook "\n\n\nFUCKING FINAALLY ITS OVER\n\n\n\t$SECONDS Seconds Elapsed\n\tDateTime Started: $timestamp DateTime Finished: $(date +%Y-%m-%d-%H%M-%Z)"
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@@ -0,0 +1,462 @@
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#!/usr/bin/env bash
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# Project: PiShrink
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# Description: PiShrink is a bash script that automatically shrink a pi image that will then resize to the max size of the SD card on boot.
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# Link: https://github.com/Drewsif/PiShrink
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version="v26.03.16"
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startSeconds=$SECONDS
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CURRENT_DIR="$(pwd)"
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SCRIPTNAME="${0##*/}"
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MYNAME="${SCRIPTNAME%.*}"
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LOGFILE="${CURRENT_DIR}/${SCRIPTNAME%.*}.log"
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REQUIRED_TOOLS="parted losetup tune2fs md5sum e2fsck resize2fs"
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ZIPTOOLS=("gzip xz")
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declare -A ZIP_PARALLEL_TOOL=( [gzip]="pigz" [xz]="xz" ) # parallel zip tool to use in parallel mode
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declare -A ZIP_PARALLEL_OPTIONS=( [gzip]="-f9" [xz]="-T0" ) # options for zip tools in parallel mode
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declare -A ZIPEXTENSIONS=( [gzip]="gz" [xz]="xz" ) # extensions of zipped files
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function info() {
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echo "$SCRIPTNAME: $1"
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}
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function error() {
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echo -n "$SCRIPTNAME: ERROR occurred in line $1: "
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shift
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echo "$@"
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}
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function cleanup() {
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if losetup "$loopback" &>/dev/null; then
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losetup -d "$loopback"
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fi
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if [ "$debug" = true ]; then
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local old_owner=$(stat -c %u:%g "$src")
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chown "$old_owner" "$LOGFILE"
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fi
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}
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function logVariables() {
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if [ "$debug" = true ]; then
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echo "Line $1" >> "$LOGFILE"
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shift
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local v var
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for var in "$@"; do
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eval "v=\$$var"
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echo "$var: $v" >> "$LOGFILE"
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done
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fi
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}
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function checkFilesystem() {
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info "Checking filesystem"
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e2fsck -pf "$loopback"
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(( $? < 4 )) && return
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info "Filesystem error detected!"
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info "Trying to recover corrupted filesystem"
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e2fsck -y "$loopback"
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(( $? < 4 )) && return
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if [[ $repair == true ]]; then
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info "Trying to recover corrupted filesystem - Phase 2"
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e2fsck -fy -b 32768 "$loopback"
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(( $? < 4 )) && return
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fi
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error $LINENO "Filesystem recoveries failed. Giving up..."
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exit 9
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}
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function set_autoexpand() {
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#Make pi expand rootfs on next boot
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mountdir=$(mktemp -d)
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partprobe "$loopback"
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sleep 3
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umount "$loopback" > /dev/null 2>&1
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mount "$loopback" "$mountdir" -o rw
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if (( $? != 0 )); then
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info "Unable to mount loopback, autoexpand will not be enabled"
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return
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fi
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if [ ! -d "$mountdir/etc" ]; then
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info "/etc not found, autoexpand will not be enabled"
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umount "$mountdir"
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return
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fi
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if [[ ! -f "$mountdir/etc/rc.local" ]]; then
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info "An existing /etc/rc.local was not found, autoexpand may fail..."
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fi
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if ! grep -q "## PiShrink https://github.com/Drewsif/PiShrink ##" "$mountdir/etc/rc.local"; then
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echo "Creating new /etc/rc.local"
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if [ -f "$mountdir/etc/rc.local" ]; then
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mv "$mountdir/etc/rc.local" "$mountdir/etc/rc.local.bak"
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fi
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cat <<'EOFRC' > "$mountdir/etc/rc.local"
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#!/bin/bash
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## PiShrink https://github.com/Drewsif/PiShrink ##
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do_expand_rootfs() {
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ROOT_PART=$(mount | sed -n 's|^/dev/\(.*\) on / .*|\1|p')
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PART_NUM=${ROOT_PART#mmcblk0p}
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if [ "$PART_NUM" = "$ROOT_PART" ]; then
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echo "$ROOT_PART is not an SD card. Don't know how to expand"
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return 0
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fi
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# Get the starting offset of the root partition
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PART_START=$(parted /dev/mmcblk0 -ms unit s p | grep "^${PART_NUM}" | cut -f 2 -d: | sed 's/[^0-9]//g')
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[ "$PART_START" ] || return 1
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# Return value will likely be error for fdisk as it fails to reload the
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# partition table because the root fs is mounted
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fdisk /dev/mmcblk0 <<EOF
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p
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d
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$PART_NUM
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n
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p
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$PART_NUM
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$PART_START
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p
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w
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EOF
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cat <<EOF > /etc/rc.local &&
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#!/bin/sh
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echo "Expanding /dev/$ROOT_PART"
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resize2fs /dev/$ROOT_PART
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rm -f /etc/rc.local; cp -fp /etc/rc.local.bak /etc/rc.local && /etc/rc.local
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EOF
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reboot
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exit
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}
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raspi_config_expand() {
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/usr/bin/env raspi-config --expand-rootfs
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if [[ $? != 0 ]]; then
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return -1
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else
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rm -f /etc/rc.local; cp -fp /etc/rc.local.bak /etc/rc.local && /etc/rc.local
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reboot
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exit
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fi
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}
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raspi_config_expand
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echo "WARNING: Using backup expand..."
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sleep 5
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do_expand_rootfs
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echo "ERROR: Expanding failed..."
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sleep 5
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if [[ -f /etc/rc.local.bak ]]; then
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cp -fp /etc/rc.local.bak /etc/rc.local
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/etc/rc.local
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fi
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exit 0
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EOFRC
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chmod +x "$mountdir/etc/rc.local"
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fi
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umount "$mountdir"
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}
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help() {
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local help
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read -r -d '' help << EOM
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Usage: $0 [-adhnrsvzZ] imagefile.img [newimagefile.img]
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-s Don't expand filesystem when image is booted the first time
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-v Be verbose
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-n Disable automatic update checking
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-r Use advanced filesystem repair option if the normal one fails
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-z Compress image after shrinking with gzip
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-Z Compress image after shrinking with xz
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-a Compress image in parallel using multiple cores
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-d Write debug messages in a debug log file
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EOM
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echo "$help"
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exit 1
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}
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should_skip_autoexpand=false
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debug=false
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update_check=true
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repair=false
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parallel=false
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verbose=false
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ziptool=""
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while getopts ":adnhrsvzZ" opt; do
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case "${opt}" in
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a) parallel=true;;
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d) debug=true;;
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n) update_check=false;;
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h) help;;
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r) repair=true;;
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s) should_skip_autoexpand=true ;;
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v) verbose=true;;
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z) ziptool="gzip";;
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Z) ziptool="xz";;
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*) help;;
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esac
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done
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shift $((OPTIND-1))
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if [ "$debug" = true ]; then
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info "Creating log file $LOGFILE"
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rm "$LOGFILE" &>/dev/null
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exec 1> >(stdbuf -i0 -o0 -e0 tee -a "$LOGFILE" >&1)
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exec 2> >(stdbuf -i0 -o0 -e0 tee -a "$LOGFILE" >&2)
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fi
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echo -e "PiShrink $version - https://github.com/Drewsif/PiShrink\n"
|
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# Try and check for updates
|
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if $update_check; then
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latest_release=$(curl -m 5 https://api.github.com/repos/Drewsif/PiShrink/releases/latest 2>/dev/null | grep -i "tag_name" 2>/dev/null | awk -F '"' '{print $4}' 2>/dev/null)
|
||||
if [[ $? ]] && [ "$latest_release" \> "$version" ]; then
|
||||
echo "WARNING: You do not appear to be running the latest version of PiShrink. Head on over to https://github.com/Drewsif/PiShrink to grab $latest_release"
|
||||
echo ""
|
||||
fi
|
||||
fi
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||||
|
||||
#Args
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||||
src="$1"
|
||||
img="$1"
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||||
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#Usage checks
|
||||
if [[ -z "$img" ]]; then
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help
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fi
|
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|
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if [[ ! -f "$img" ]]; then
|
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error $LINENO "$img is not a file..."
|
||||
exit 2
|
||||
fi
|
||||
if (( EUID != 0 )); then
|
||||
error $LINENO "You need to be running as root."
|
||||
exit 3
|
||||
fi
|
||||
|
||||
# set locale to POSIX(English) temporarily
|
||||
# these locale settings only affect the script and its sub processes
|
||||
|
||||
export LANGUAGE=POSIX
|
||||
export LC_ALL=POSIX
|
||||
export LANG=POSIX
|
||||
|
||||
# check selected compression tool is supported and installed
|
||||
if [[ -n $ziptool ]]; then
|
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if [[ ! " ${ZIPTOOLS[*]} " =~ $ziptool ]]; then
|
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error $LINENO "$ziptool is an unsupported ziptool."
|
||||
exit 17
|
||||
else
|
||||
if [[ $parallel == true && $ziptool == "gzip" ]]; then
|
||||
REQUIRED_TOOLS="$REQUIRED_TOOLS pigz"
|
||||
else
|
||||
REQUIRED_TOOLS="$REQUIRED_TOOLS $ziptool"
|
||||
fi
|
||||
fi
|
||||
fi
|
||||
|
||||
#Check that what we need is installed
|
||||
for command in $REQUIRED_TOOLS; do
|
||||
command -v $command >/dev/null 2>&1
|
||||
if (( $? != 0 )); then
|
||||
error $LINENO "$command is not installed."
|
||||
exit 4
|
||||
fi
|
||||
done
|
||||
|
||||
#Copy to new file if requested
|
||||
if [ -n "$2" ]; then
|
||||
f="$2"
|
||||
if [[ -n $ziptool && "${f##*.}" == "${ZIPEXTENSIONS[$ziptool]}" ]]; then # remove zip extension if zip requested because zip tool will complain about extension
|
||||
f="${f%.*}"
|
||||
fi
|
||||
info "Copying $1 to $f..."
|
||||
cp --reflink=auto --sparse=always "$1" "$f"
|
||||
if (( $? != 0 )); then
|
||||
error $LINENO "Could not copy file..."
|
||||
exit 5
|
||||
fi
|
||||
old_owner=$(stat -c %u:%g "$1")
|
||||
chown "$old_owner" "$f"
|
||||
img="$f"
|
||||
fi
|
||||
|
||||
# cleanup at script exit
|
||||
trap cleanup EXIT
|
||||
|
||||
#Gather info
|
||||
info "Gathering data"
|
||||
beforesize="$(ls -lh "$img" | cut -d ' ' -f 5)"
|
||||
parted_output="$(parted -ms "$img" unit B print)"
|
||||
rc=$?
|
||||
if (( $rc )); then
|
||||
error $LINENO "parted failed with rc $rc"
|
||||
info "Possibly invalid image. Run 'parted $img unit B print' manually to investigate"
|
||||
exit 6
|
||||
fi
|
||||
partnum="$(echo "$parted_output" | tail -n 1 | cut -d ':' -f 1)"
|
||||
partstart="$(echo "$parted_output" | tail -n 1 | cut -d ':' -f 2 | tr -d 'B')"
|
||||
if [ -z "$(parted -s "$img" unit B print | grep "$partstart" | grep logical)" ]; then
|
||||
parttype="primary"
|
||||
else
|
||||
parttype="logical"
|
||||
fi
|
||||
loopback="$(losetup -f --show -o "$partstart" "$img")"
|
||||
tune2fs_output="$(tune2fs -l "$loopback")"
|
||||
rc=$?
|
||||
if (( $rc )); then
|
||||
echo "$tune2fs_output"
|
||||
error $LINENO "tune2fs failed. Unable to shrink this type of image"
|
||||
exit 7
|
||||
fi
|
||||
|
||||
currentsize="$(echo "$tune2fs_output" | grep '^Block count:' | tr -d ' ' | cut -d ':' -f 2)"
|
||||
blocksize="$(echo "$tune2fs_output" | grep '^Block size:' | tr -d ' ' | cut -d ':' -f 2)"
|
||||
|
||||
logVariables $LINENO beforesize parted_output partnum partstart parttype tune2fs_output currentsize blocksize
|
||||
|
||||
#Check if we should make pi expand rootfs on next boot
|
||||
if [ "$parttype" == "logical" ]; then
|
||||
echo "WARNING: PiShrink does not yet support autoexpanding of this type of image"
|
||||
elif [ "$should_skip_autoexpand" = false ]; then
|
||||
set_autoexpand
|
||||
else
|
||||
echo "Skipping autoexpanding process..."
|
||||
fi
|
||||
|
||||
#Make sure filesystem is ok
|
||||
checkFilesystem
|
||||
|
||||
if ! minsize=$(resize2fs -P "$loopback"); then
|
||||
rc=$?
|
||||
error $LINENO "resize2fs failed with rc $rc"
|
||||
exit 10
|
||||
fi
|
||||
minsize=$(cut -d ':' -f 2 <<< "$minsize" | tr -d ' ')
|
||||
logVariables $LINENO currentsize minsize
|
||||
if [[ $currentsize -eq $minsize ]]; then
|
||||
info "Filesystem already shrunk to smallest size. Skipping filesystem shrinking"
|
||||
else
|
||||
#Add some free space to the end of the filesystem
|
||||
extra_space=$(($currentsize - $minsize))
|
||||
logVariables $LINENO extra_space
|
||||
for space in 5000 1000 100; do
|
||||
if [[ $extra_space -gt $space ]]; then
|
||||
minsize=$(($minsize + $space))
|
||||
break
|
||||
fi
|
||||
done
|
||||
logVariables $LINENO minsize
|
||||
|
||||
#Shrink filesystem
|
||||
info "Shrinking filesystem"
|
||||
if [ -z "$mountdir" ]; then
|
||||
mountdir=$(mktemp -d)
|
||||
fi
|
||||
|
||||
resize2fs -p "$loopback" $minsize
|
||||
rc=$?
|
||||
if (( $rc )); then
|
||||
error $LINENO "resize2fs failed with rc $rc"
|
||||
mount "$loopback" "$mountdir"
|
||||
mv "$mountdir/etc/rc.local.bak" "$mountdir/etc/rc.local"
|
||||
umount "$mountdir"
|
||||
losetup -d "$loopback"
|
||||
exit 12
|
||||
else
|
||||
info "Zeroing any free space left"
|
||||
mount "$loopback" "$mountdir"
|
||||
cat /dev/zero > "$mountdir/PiShrink_zero_file" 2>/dev/null
|
||||
info "Zeroed $(ls -lh "$mountdir/PiShrink_zero_file" | cut -d ' ' -f 5)"
|
||||
rm -f "$mountdir/PiShrink_zero_file"
|
||||
umount "$mountdir"
|
||||
fi
|
||||
sleep 1
|
||||
|
||||
#Shrink partition
|
||||
info "Shrinking partition"
|
||||
partnewsize=$(($minsize * $blocksize))
|
||||
newpartend=$(($partstart + $partnewsize))
|
||||
logVariables $LINENO partnewsize newpartend
|
||||
parted -s -a minimal "$img" rm "$partnum"
|
||||
rc=$?
|
||||
if (( $rc )); then
|
||||
error $LINENO "parted failed with rc $rc"
|
||||
exit 13
|
||||
fi
|
||||
|
||||
parted -s "$img" unit B mkpart "$parttype" "$partstart" "$newpartend"
|
||||
rc=$?
|
||||
if (( $rc )); then
|
||||
error $LINENO "parted failed with rc $rc"
|
||||
exit 14
|
||||
fi
|
||||
fi
|
||||
|
||||
# Truncate the image file
|
||||
info "Checking for unpartitioned space"
|
||||
endresult=$(parted -ms "$img" unit B print free)
|
||||
rc=$?
|
||||
if (( $rc )); then
|
||||
error $LINENO "parted failed with rc $rc"
|
||||
exit 15
|
||||
fi
|
||||
|
||||
endresult_last=$(tail -1 <<< "$endresult")
|
||||
if [[ "$endresult_last" == *free\; ]]; then
|
||||
info "Truncating image"
|
||||
endresult=$(cut -d ':' -f 2 <<< "$endresult_last" | tr -d 'B')
|
||||
logVariables $LINENO endresult
|
||||
truncate -s "$endresult" "$img"
|
||||
rc=$?
|
||||
if (( $rc )); then
|
||||
error $LINENO "truncate failed with rc $rc"
|
||||
exit 16
|
||||
fi
|
||||
fi
|
||||
|
||||
# handle compression
|
||||
if [[ -n $ziptool ]]; then
|
||||
options=""
|
||||
envVarname="${MYNAME^^}_${ziptool^^}" # PISHRINK_GZIP or PISHRINK_XZ environment variables allow to override all options for gzip or xz
|
||||
[[ $parallel == true ]] && options="${ZIP_PARALLEL_OPTIONS[$ziptool]}"
|
||||
[[ -v $envVarname ]] && options="${!envVarname}" # if environment variable defined use these options
|
||||
[[ $verbose == true ]] && options="$options -v" # add verbose flag if requested
|
||||
|
||||
if [[ $parallel == true ]]; then
|
||||
parallel_tool="${ZIP_PARALLEL_TOOL[$ziptool]}"
|
||||
info "Using $parallel_tool on the shrunk image"
|
||||
if ! $parallel_tool ${options} "$img"; then
|
||||
rc=$?
|
||||
error $LINENO "$parallel_tool failed with rc $rc"
|
||||
exit 18
|
||||
fi
|
||||
|
||||
else # sequential
|
||||
info "Using $ziptool on the shrunk image"
|
||||
if ! $ziptool ${options} "$img"; then
|
||||
rc=$?
|
||||
error $LINENO "$ziptool failed with rc $rc"
|
||||
exit 19
|
||||
fi
|
||||
fi
|
||||
img=$img.${ZIPEXTENSIONS[$ziptool]}
|
||||
fi
|
||||
|
||||
aftersize=$(ls -lh "$img" | cut -d ' ' -f 5)
|
||||
logVariables $LINENO aftersize
|
||||
|
||||
finishSeconds=$SECONDS
|
||||
elapsedSeconds=$((finishSeconds - startSeconds))
|
||||
info "Shrunk $img from $beforesize to $aftersize in $((elapsedSeconds / 60))m $((elapsedSeconds % 60))s"
|
||||
@@ -7,10 +7,10 @@ else
|
||||
fi
|
||||
|
||||
# faggot function
|
||||
broadcast-important-princess-message() {
|
||||
broadcast_important_princess_message() {
|
||||
# fuckin hell if yo dont have an arg fuku
|
||||
if [ -z "$1" ]; then
|
||||
echo "Usage: broadcast-important-princess-message \"Princess' Important Message\"" >&2
|
||||
echo "Usage: broadcast_important_princess_message \"Princess' Important Message\"" >&2
|
||||
return 1
|
||||
fi
|
||||
|
||||
@@ -43,4 +43,4 @@ broadcast-important-princess-message() {
|
||||
}
|
||||
|
||||
# needz root to write to other peoplez ptys
|
||||
sudo broadcast-important-princess-message "$msg"
|
||||
broadcast_important_princess_message "$msg"
|
||||
Reference in New Issue
Block a user