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# To find files by case-insensitive extension (ex: .jpg, .JPG, .jpG):
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find . -iname '*.jpg'
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# To find directories:
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find . -type d
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# To find files:
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find . -type f
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# To find files by octal permission:
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find . -type f -perm 777
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# To find files with setuid bit set:
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find . -xdev \( -perm -4000 \) -type f -print0 | xargs -0 ls -l
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# To find files with extension '.txt' and remove them:
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find ./path/ -name '*.txt' -exec rm '{}' \;
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# To find files with extension '.txt' and look for a string into them:
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find ./path/ -name '*.txt' | xargs grep 'string'
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# To find files with size bigger than 5 Mb and sort them by size:
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find . -size +5M -type f -print0 | xargs -0 ls -Ssh | sort -z
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# To find files bigger thank 2 MB and list them:
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find . -type f -size +20000k -exec ls -lh {} \; | awk '{ print $9 ": " $5 }'
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# To find files modified more than 7 days ago and list file information
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find . -type f -mtime +7d -ls
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# To find symlinks owned by a user and list file information
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find . -type l --user=username -ls
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# To search for and delete empty directories
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find . -type d -empty -exec rmdir {} \;
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# To search for directories named build at a max depth of 2 directories
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find . -maxdepth 2 -name build -type d
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# To search all files who are not in .git directory
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find . ! -iwholename '*.git*' -type f
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# To find all files that have the same node (hard link) as MY_FILE_HERE
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find . -type f -samefile MY_FILE_HERE 2>/dev/null
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# To find all files in the current directory and modify their permissions
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find . -type f -exec chmod 644 {} \;
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# To find files with extension '.txt.' and edit all of them with vim
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# vim is started only once for all files
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find . -iname '*.txt' -exec vim {} \+
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# To find all files with extension '.png' and rename them by changing extension to '.jpg' (base name is preserved)
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find . -type f -iname '*.png' -exec bash -c 'mv "$0" "${0%.*}.jpg"' {} \;
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