31 lines
942 B
Bash
31 lines
942 B
Bash
#!/bin/bash
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# usage: randomtoken [bytes] [mode]
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# defaults: bytes=16, mode=hex
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# modes: hex, sha256, sha512, md5, base64, raw
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# handle args and defaults
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if [ "$#" -ne 2 ]; then
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bytes=16
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mode=hex
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else
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bytes=$1
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mode=$2
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fi
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# generate token
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if [ "$mode" = "sha256" ]; then
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dd if=/dev/urandom bs=1 count=$bytes status=none | sha256sum | awk '{print $1}'
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elif [ "$mode" = "sha512" ]; then
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dd if=/dev/urandom bs=1 count=$bytes status=none | sha512sum | awk '{print $1}'
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elif [ "$mode" = "md5" ]; then
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dd if=/dev/urandom bs=1 count=$bytes status=none | md5sum | awk '{print $1}'
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elif [ "$mode" = "base64" ]; then
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dd if=/dev/urandom bs=1 count=$bytes status=none | base64 | awk '{print $1}'
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elif [ "$mode" = "raw" ]; then
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dd if=/dev/urandom bs=1 count=$bytes status=none
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elif [ "$mode" = "hex" ]; then
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dd if=/dev/urandom bs=1 count=$bytes status=none | xxd -p
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else
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echo "Unknown mode: $mode"
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exit 1
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fi |