| 1 | #!/bin/sh
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| 2 | # $ givefilesextensions [DIR]
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| 3 | # gives the directory's files an extension if missing
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| 4 | # [bugs]
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| 5 | # - .jpeg is added to .jpg
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| 6 |
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| 7 | if [ "$#" -ne 1 ]; then
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| 8 | echo "Usage $0 /path/to/dir"
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| 9 | exit 1
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| 10 | fi
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| 11 |
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| 12 | target_dir="$1"
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| 13 |
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| 14 | if [ ! -d "$target_dir" ]; then
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| 15 | echo "ERROR '$target_dir' is not valid"
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| 16 | exit 1
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| 17 | fi
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| 18 |
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| 19 | for file in "$target_dir"/*; do
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| 20 | [ -d "$file" ] && continue
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| 21 | mime_type=$(file --mime-type -b "$file")
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| 22 | extension=$(echo "$mime_type" | awk -F'/' '{print $2}')
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| 23 |
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| 24 | if [[ ! "$file" == *".$extension" && -n "$extension" ]]; then
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| 25 | new_file="$file.$extension"
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| 26 | echo "$file -> $new_file"
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| 27 | mv "$file" "$new_file"
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| 28 | fi
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| 29 | done
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