BASH Find
Find Files Not Matching A Pattern
find . -type f -not -name "*.html"
Find Files Not Matching Multiple Patterns
find . -type f -not \( -name "*.mkv" -o -name "*.mp4" \)
Delete Files Not Matching A Pattern
find . -type f -not -name "*.html" -exec rm -fv {} \;
Find Unique Duplicate Files
If you're looking for identical files (with the same md5 sum)...
find . -type f -exec md5sum {} \; | sort | uniq -d --check-chars=32
Rename Part Of Filename
Pure BASH Method
This will change a character, such as a dash for an underscore in all the files in this folder ...
for i in *; do mv -- "$i" "${i//-/_}"; done
renamed '34001-1.jpg' -> '34001_1.jpg'
renamed '34001-2.jpg' -> '34001_2.jpg'
Using Rename
This will rename all files by removing what is after the episode number and before the extension.
e.g.
Some Show S03E01 The Episode Title.mp4
Command (test and verbose):
rename -n -v -e 's/E(\d+).*/$1\.mp4/' *.mp4
Output:
rename(American Dad! S05E01 1600 Candles.mp4, American Dad! S0501.mp4) rename(American Dad! S05E02 The One That Got Away.mp4, American Dad! S0502.mp4) rename(American Dad! S05E03 One Little Word.mp4, American Dad! S0503.mp4)
Command:
rename -v -e 's/E(\d+).*/$1\.mp4/' *.mp4
Output:
American Dad! S05E01 1600 Candles.mp4 renamed as American Dad! S0501.mp4 American Dad! S05E02 The One That Got Away.mp4 renamed as American Dad! S0502.mp4 American Dad! S05E03 One Little Word.mp4 renamed as American Dad! S0503.mp4
Find Oldest File
find -type f -printf '%T+ %p\n' | sort | head -n 1
Find Using Text File List
mkdir -p /tmp/{0..9}
find /tmp/ > /tmp/dirs
find $(cat /tmp/dirs) -type d -name "8"
Good Examples
https://www.linux.com/community/blogs/133-general-linux/732993
Add Text To End Of All Lines In A Text File
sed -e 's/$/ yes/' ham_emails_new.txt > ham_emails_newer.txt
Add Text To Beginning Of All Lines In A Text File
sed -e 's/^/FromOrTo: /' ham_emails.txt > ham_emails_new.txt
Find Email Address From Text File
cat textfile.txt | grep -i -o '[A-Z0-9._%+-]\+@[A-Z0-9.-]\+\.[A-Z]\{2,4\}'
Extract Certain Headers And Body Of Email
cat `find . -type f ` |formail -c -k -X From: -X Subject: |egrep -v '^--|^<|^Content|charset|^Sent|^This|^$'
cat `find . -type f ` |formail -c -d -k -X From: -X Subject: -s |egrep -v '^--|^<|^Content|charset|^Sent|^This|to be clean.$|=$|$|^$'
Find And Copy Files To A Different Directory
Find any text files, then copy them to a different directory.
find . -name "*.txt" -exec cp {} /path/to/directory \;
Find And Copy Files With Directory Structure
find /path/to/search/ -type f -name '*.mov' -print -exec cp --parents "{}" /path/to/copy/to/ \;
Date Yesterday
date -d "1 day ago" '+%Y-%m-%d'
Last X Command Used
Find the last time you used tar...
!tar:p
Run that same command again...
!tar
Thanks to CLIMagic
Files Matching Pattern And Remove File Extension
for FILE in *.conf; do echo "${FILE%%.*}"; done
Largest Directories Or Files
Directories...
du -Sh | sort -rh | head -n 15
Files...
find . -type f -exec du -Sh {} + | sort -rh | head -n 15
Thanks to Xmodulo.com
Find And Tar Files
The + means tar will only be called once...
find . -type f -exec tar -czvf backup.tar.gz '{}' \+;
Working example...
find public_html/app/design/frontend/ public_html/skin/frontend/ -type f -mtime -12 -print -exec tar -czvf paullys_tweaked_files.tar.gz '{}' \+;
Text In Types Of Files
find . -type f -name '*.doc' -exec grep -Hn "text here" {} \;
Find Then Rename / Add Extension To All Files
find . -type f -exec mv '{}' '{}'.jpg \;
Files Owned By A User
find /path/to/search/ -user nobody -print
Zero Length Files
find /path/to/search/ -size 0
e.g.
Find any zero length files named tmp.* older than 1 day and delete them...
find /tmp/ -type f -size 0 -name 'tmp.*' -mtime +1 -exec rm -rf {} \;
Find And Delete
Find any files older than 7 days, then delete them but show what you are deleting.
find /path/to/directory -type f -mtime +7 -exec rm {} \; -print
Find And Move
Find any text files, then move them to a different directory.
find . -name "*.txt" -exec mv {} /path/to/directory \;
Files Newer Than Another File
touch --date "2011-12-31" /tmp/foo touch /tmp/bar find /tmp/ -type f -newer /tmp/foo
Files Older Than X File
find /path/to/search -type f -name 'fish' \! -newer /path/to/search/in/fish \! -samefile /path/to/search/in/fish |sort
e.g.
find /home/MailScanner/archive-nfs/ -type f -name 'messages' \! -newer /home/MailScanner/archive-nfs/20150327/messages \! -samefile /home/MailScanner/archive-nfs/20150327/messages |sort
Text Files Created In The Last 30 Days
This will find *.txt files...
find ~/Documents/ -type f -mtime -30 -name '*.txt' -print
This will find true ASCII files...
find ~/Documents/ -type f -mtime -30 -print -exec file {} + | grep ASCII
Most Recently Changed Files
find . -type f -printf '%TY-%Tm-%Td %TT %p\n' | sort
Multiple File Types
find /path/to/search/ -type f \( -name "*.epub" -or -name "*.mobi" \) -printf '%f\n' |sort |uniq
Empty Directories / Folders
find . -empty -type d
Space Used In Folder And Sort By Size
cd /home/user/ du -sch .[!.]* * |sort -h
or
du -sch /home/user/.[!.]* /home/user/* |sort -h
All Email Forward Files And Show Contents
find /home/ -maxdepth 2 -type f -name '.forward' -printf "\n%p\n" -exec cat {} \;
