53 lines
1.5 KiB
Bash
53 lines
1.5 KiB
Bash
#!/bin/bash
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# manually created arrays for file types and extensions
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types_arr=('MPEG' 'JPEG' 'PNG' 'GIF' 'WebM' 'RIFF')
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exts_arr=('mp4' 'jpg' 'png' 'gif' 'webm' 'webp')
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tmp_file="$1/download.tmp"
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# check for existance of $1 or if $2 is a file
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if [ -z $1 ] || [ ! -f "$2" ]; then
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echo "Usage: $0 <output_directory> <file_list>"
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echo "ExaMPLE: download_file_list Downloads to_download.txt"
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exit 1
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fi
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# create the out dir if not extant
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if [ ! -d "$1" ]; then
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echo "Output directory does not exist: $1 Creating"
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mkdir "$1"
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fi
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# read the input file and loop through it
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cat "$2" | \
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while read line; do
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# download the file to a tmp
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echo "Downloading $line to $1"
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curl -s -o "$tmp_file" "$line"
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# get the file type
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type=$(file "$tmp_file" | awk '{print $2}')
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# md5 hash the file for a deterministic file name
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namehash=$(md5sum "$tmp_file" | awk '{print $1}')
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# map the file type to the corresponding extension
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count=0
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# loop through types for patch with file type
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for item in "${types_arr[@]}"; do
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if [[ " ${types_arr[@]} " =~ " ${type} " ]]; then
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# if type matches
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if [[ "$item" == "$type" ]]; then
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# rename the downloaded file
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new_name="$1/$namehash.$(echo ${exts_arr[$count]})"
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echo "Renaming $tmp_file to $new_name"
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mv "$tmp_file" "$new_name"
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fi
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else
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echo "$(basename $line) not a supported format: $type! Deleting"
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rm -f "$tmp_file"
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fi
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# increment the count regardless
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count=$((count + 1))
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done
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done |