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34 lines
874 B
34 lines
874 B
2 years ago
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#!/bin/sh
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# The Hash Spell
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#
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# This powerful spell allows you to compute the CRC-32 hash of a text file, including its filename. Simply provide
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# the path to the file as an argument, and the spell will do the rest. The resulting hash will be displayed on the
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# command line.
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if [ "$#" != 1 ]; then
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echo "Usage: hash file"
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exit 1
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fi
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# Get the directory where the script is being called from
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script_dir="$(cd "$(dirname "$0")" >/dev/null 2>&1 && pwd)"
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# Get the file name specified as an argument
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file_name="$1"
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# Concatenate the script directory and the file name to get the full file path
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file="$script_dir/$file_name"
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if [ ! -f "$file" ]; then
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echo "Your spell fizzles. There is no file."
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exit 1
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fi
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echo $file
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# Compute the CRC-32 hash
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crc=$(cksum "$file" | awk '{print $1}')
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# Convert the hash to hexadecimal and display it
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printf "0x%x\n" "$crc"
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