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12 lines
335 B
Bash
12 lines
335 B
Bash
#!/bin/sh
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# Print a list of categories from all files
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categories=()
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read -a files <<< $(ls txt)
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for file in "${files[@]}"
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do
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IFS=, read -a array <<< $(head -n 1 "txt/$file")
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categories+=("${array[@]}")
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done
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IFS=" " read -r -a categories <<< "$(tr ' ' '\n' <<< ${categories[@]} | sort -u | tr '\n' ' ')"
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echo "${categories[@]}"
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