Commands tagged grep (409)
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Videos are found using their MIME type. Thus no need to for an extension for the video file. This is a efficent version of "jnash" cmd (4086). Thanks for jnash. This cmd will only show video files while his cmd show files having "video" anywhere in path. Show Sample Output
1allVideos() { find ./ -type f -print0 | xargs -0 file -iNf - | grep ": video/" | cut -d: -f1; } -
Checks your gmail account every 30 seconds and display the number of new messages in the top right corner of the terminal. A kind of CLI "Gmail notifier" if you will. :-) This is a mashup of http://www.commandlinefu.com/commands/view/7916/put-a-console-clock-in-top-right-corner and http://www.commandlinefu.com/commands/view/3386/check-your-unread-gmail-from-the-command-line
1while sleep 30; do tput sc;tput cup 0 $(($(tput cols)-15));echo -n " New Emails: $(curl -u username:password --silent https://mail.google.com/mail/feed/atom | grep 'fullcount' | grep -o '[0-9]\+')";tput rc; done & -
This fixes a bug found in the other scripts which fail when a branch has the same name as a file or directory in the current directory. Show Sample Output
1for k in `git branch|sed s/^..//`;do echo -e `git log -1 --pretty=format:"%Cgreen%ci %Cblue%cr%Creset" "$k" --`\\t"$k";done|sort -
Hide comments and empty lines, included XML comments, Show Sample Output
1nocomments () { cat $1 | egrep -v '^[[:space:]]*#|^[[:space:]]*$|^[[:space:]]*;' | sed '/<!--.*-->/d' | sed '/<!--/,/-->/d'; } -
shows number of mysql bin log events (which are mysql server events) per minute, useful to check stress times postmortem Show Sample Output
1mysqlbinlog <logfiles> | grep exec | grep end_log_pos | cut -d' ' -f2- | cut -d: -f-2 | uniq -c -
Simple TCPDUMP grepping for common unsafe protocols (HTTP, POP3, SMTP, FTP) Show Sample Output
1tcpdump port http or port ftp or port smtp or port imap or port pop3 -l -A | egrep -i 'pass=|pwd=|log=|login=|user=|username=|pw=|passw=|passwd=|password=|pass:|user:|username:|password:|login:|pass |user ' --color=auto --line-buffered -B20 -
1egrep -v '(\t)?#.*|^$' /etc/apache2/sites-available/default
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Will search for the given pattern and build a list of occurrences. Then you can use :copen and :cclose to toggle the list. When browsing the list, ENTER will take you to that line in the file.
1:vimgrep pattern % -
Substitute for #11720 Can probably be even shorter and easier. Show Sample Output
1ls -l /dev/disk/by-id/ | grep '/sda$' | grep -o 'ata[^ ]*' -
1egrep -v "(^#|^\b*$)"
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This will catch most separators in the section of the email: dot . dash - underscore _ plus + (added for gmail) ... and the basic dash '-' of host names. Show Sample Output
1grep -aEio '([[:alnum:]_.-\+\-]+@[[:alnum:]_.-]+?\.[[:alpha:].]{2,6})' -
grep по ps aux
1ps aux | grep $(echo $1 | sed "s/^\(.\)/[\1]/g") -
first grep all href images then sed the url part then wget
1curl -s $1 | grep -o -i '<a href="//images.4chan.org/[^>]*>' | sed -r 's%.*"//([^"]*)".*%\1%' | xargs wget -
Puts a splash of color in your access logs. IP addresses are gray, 200 and 304 are green, all 4xx errors are red. Works well with e.g. "colorize access_log | less -R" if you want to see your colors while paging. Use as inspiration for other things you might be tailing, like syslog or vmstat Usage:
tail -f access.log | colorize1function colorize() { c="--line-buffered --color=yes"; GREP_COLORS="mt=01;34" egrep $c '(^| 200 | 304 )' "${@}" | GREP_COLORS="mt=02;31" egrep $c '(^|"(GET|POST) .*[^0-9] 4[0-1][0-9] )' | GREP_COLORS="ms=02;37" egrep $c '(^|^[0-9\.]+) ';} -
Replace "foo" with "bar" in all files in current directory recursively
1grep -lr "foo" . | xargs sed -i "s/foo/bar/g" -
on some distro's you have to replace "BogoMIPS" with "bogomips". Show Sample Output
1cat /proc/cpuinfo | grep BogoMIPS | uniq | sed 's/^.*://g' | awk '{print($1 / 4) }' -
It will highlight non-ascii character in a file. those character can cause problem for some application parsing ascii file.
1grep --color='auto' -P -n '[^\x00-\x7F]' my_file.txt -
Normally, searching git log comments is case sensitive. The -i luckily applies to the --grep switch.
1git log -i --grep='needle' -
List all open files of all processes. .
find /proc/*/fdLook through the /proc file descriptors .-xtype flist only symlinks to file .-printf "%l\n"print the symlink target .grep -P '^/(?!dev|proc|sys)'ignore files from /dev /proc or /sys .sort | uniq -c | sort -ncount the results . Many processes will create and immediately delete temporary files. These can the filtered out by adding:... | grep -v " (deleted)$" | ...Show Sample Output1find /proc/*/fd -xtype f -printf "%l\n" | grep -P '^/(?!dev|proc|sys)' | sort | uniq -c | sort -n -
Neither of the others worked for me. This does.
1curl http://url/rss | grep -o '<enclosure url="[^"]*' | grep -o '[^"]*$' | xargs wget -c -
Download latest released gitlab docker container
1wget -qO- 'https://github.com'$(curl -s 'https://github.com'$(curl -s https://github.com/sameersbn/docker-gitlab/releases | grep -m 1 -o '<a.*[0-9\.]</a>' | cut -d '"' -f 2) | grep -o '<a.* rel="nofollow">' | grep 'tar.gz' | cut -d '"' -f 2) -
Put this one-line function somewhere in your shell init, re-login and try
whatinstalled <command>This is an elaborate wrapper around "dpkg -S", with numerous safeguards. Symlinks and command aliases are resolved. If the searched command is not an existing executable file or was installed by some other means than dpkg/apt, nothing is printed to stdout, otherwise the package name. Show Sample Output1whatinstalled () { local cmdpath=$(realpath -eP $(which -a $1 | grep -E "^/" | tail -n 1) 2>/dev/null) && [ -x "$cmdpath" ] && dpkg -S $cmdpath 2>/dev/null | grep -E ": $cmdpath\$" | cut -d ":" -f 1; } -
a bit shorter, parenthesis not needed but added for clarity Show Sample Output
1nslookup -q=TXT _netblocks.google.com | grep -Eo 'ip4:([0-9\.\/]+)' | cut -d: -f2 -
ItemsListtoAvoid (A) could be a list of files with a special characteristic to exclude. It can be a result of previous processing list, ex. a list of files containing a special string. AlItemsList.txt (B) Is a complete list of items including some or all items in A.
Difference is saved in ItemsDifference.txt1grep -vxFf ItemsListtoAvoid.txt AllItemsList.txt > ItemsDifference.txt -
found here: https://stackoverflow.com/a/9035939
1grep -v $'[^\t\r -~]' my-file-with-non-ascii-characters - ‹ First < 5 6 7 8 9 > Last ›
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