Commands tagged grep (409)
-
Search for java explicit incrementation in order to replace it with postfix or assignment operator Show Sample Output
0egrep "([_a-zA-Z][_a-zA-Z0-9]*) *= *\1 *[*/+-] *[0-9]+ *;" -
When I do a major change in my entities, I want to find a way to find all my Entities names and create the commande for me. So instead of doing ls src/Your/OwnBundle... and then do it manually, this helps a lot. Show Sample Output
0find ./src -type d -name "Entity" | xargs ls -A | cut -d . -f1 | sed 's_^_app/console doctrine:generate:entities YourOwnBundleName:_' -
this alternative shows the differences as they occur so that they are made plain Show Sample Output
0while true; do iptables -nvL > /tmp/now; diff -U0 /tmp/prev /tmp/now > /tmp/diff; clear; cat /tmp/diff; mv /tmp/now /tmp/prev; slee p 1; done -
Shows sorted by query time, the headers of mysqlbinlog entries. Then is easy to locate the heavier events on the raw log dump Show Sample Output
0mysqlbinlog <logfiles> | grep exec | grep end_log_pos | grep -v exec_time=0 | sed 's/^\(.*exec_time=\([0-9]\+\).*\)/\2 - \1 /' | sort -n -
0ls -R | grep ":$" | sed -e 's/:$//' -e 's/[^-][^\/]*\//--/g' -e 's/^/ /' -e 's/-/|/'
-
This command allows you to revert every modified file one-by-one in a while loop, but also after "echo $file;" you can do any sort of processing you might want to add before the revert happens. Show Sample Output
0svn status | grep "^M" | while read entry; do file=`echo $entry | awk '{print $2}'`; echo $file; svn revert $file; done -
0find /path/to/dir -type f -print0 | xargs -0 grep -l "foo"
-
cut -f1,2 - IP range 16 cut -f1,2,3 - IP range 24 cut -f1,2,3,4 - IP range 24 Show Sample Output
0netstat -tn | grep :80 | awk '{print $5}'| grep -v ':80' | cut -f1 -d: |cut -f1,2,3 -d. | sort | uniq -c| sort -n -
This pattern matches empty lines in the file and -c gives the count
0grep -c "^$" filename -
Depending on your Apache access log configuration you may have to change the sum+=$11 to previous or next awk token. Beware, usually in access log last token is time of response in microseconds, penultimate token is size of response in bytes. You may use this command line to calculate sum and average of responses sizes. You can also refine the egrep regexp to match specific HTTP requests. Show Sample Output
0egrep '.*(("STATUS)|("HEAD)).*' http_access.2012.07.18.log | awk '{sum+=$11; ++n} END {print "Tot="sum"("n")";print "Avg="sum/n}' -
Use if you want to include untrusted literal strings in your grep regexes. I use it to list all mounts below a directory:
dir=/mnt/gentoo; cat /proc/mounts |awk '{print $2}' |egrep "^$(egrep_escape "$dir")(/|$)"/mnt/gentoo /mnt/gentoo/proc /mnt/gentoo/sys /mnt/gentoo/dev /mnt/gentoo/home Works even if $dir contains dangerous characters (e.g. comes from a commandline argument). Show Sample Output0egrep_escape() { echo "$1" |sed -re 's/([\\.*+?(|)^$[])/\\\1/g' -e 's/\{/[{]/g'; } -
0for file in `svn st | awk '{print $2}'`; do svn revert $file; done
-
Add this line to your ~/.gitconfig for a git alias "git brd" (i.e., brd = (br)anch+(d)ate) which sorts branches by date. Allows you to pass in limited "git branch" options such as "-r" (remote) or "-a" (all). (Note: forum added "$" prefix to command; obviously in gitconfig there is no "$" prefix.) Show Sample Output
0brd = "! f() { for k in $(git branch $@ | sed 's/^..//; s/ .*//'); do echo "$(git log -1 --pretty='%Cgreen%ci %Cblue(%cr)%Creset ' $k) $k" ; done | sort -r; }; f" -
0vim $(grep [REGULAR_EXPRESSION] -R * | cut -d":" -f1 | uniq)
-
0find /path/to/search/directory -exec grep -Hn "pattern" {} \;
-
0ifconfig eth0 | grep HW | cut -d " " -f 11
-
Old Sys5 system and SUN computers don't have the -H option. Adding /dev/null forces grep to use the multi-file output and report the file name.
0find . -name "*.[ch]" -exec grep -i /dev/null "search pharse" {} \; -
Requirements: curl, grep, awk, internet connection with access to wikipedia Loaded page: http://en.wikipedia.org/wiki/List_of_programming_languages If you can make shorter version of this listgetter, you are welcome to paste it here :) Show Sample Output
0curl http://en.wikipedia.org/wiki/List_of_programming_languages | grep "<li>" | awk -F"title=" '{ print $2 }' | awk -F\" '{ print $2 }' -
0grep --color=always -nr 'setLevel' --include=*py | less -SRqg
-
Runs a diff on two files ignore comments and blank lines (diff -I=RE does not work as expected). Adapted from a post found on stackexchange.
0diff -u <(grep -vE '^(#|$)' file1) <(grep -vE '^(#|$)' file2) -
0diff -BI '^#' file{1,2}
-
`pwd` returns the current path `grep -o` prints each slash on new line perl generates the paths sequence: './.', './../.', ... `readlink` canonicalizes paths (it makes the things more transparent) `xargs -tn1` applies chmod for each of them. Each command applied is getting printed to STDERR. Show Sample Output
0pwd|grep -o '/'|perl -ne '$x.="./.";print`readlink -f $x`'|xargs -tn1 chmod 755 -
0lsof -i -P +c 0 +M | grep -i "$1"
-
calculate how many different lines between two files Show Sample Output
0grep -Fvxf $(file1) $(file2) | wc -l -
Searched strings: passthru, shell_exec, system, phpinfo, base64_decode, chmod, mkdir, fopen, fclose, readfile Since some of the strings may occur in normal text or legitimately you will need to adjust the command or the entire regex to suit your needs.
0find ./public_html/ -name \*.php -exec grep -HRnDskip "\(passthru\|shell_exec\|system\|phpinfo\|base64_decode\|chmod\|mkdir\|fopen\|fclose\|readfile\) *(" {} \; - ‹ First < 9 10 11 12 13 > Last ›
What's this?
commandlinefu.com is the place to record those command-line gems that you return to again and again. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.
Check These Out
Stay in the loop…
- Follow the Tweets.
-
Every new command is wrapped in a tweet and posted to Twitter. Following the stream is a great way of staying abreast of the latest commands. For the more discerning, there are Twitter accounts for commands that get a minimum of 3 and 10 votes - that way only the great commands get tweeted.
» http://twitter.com/commandlinefu
» http://twitter.com/commandlinefu3
» http://twitter.com/commandlinefu10 - Subscribe to the feeds.
-
Use your favourite RSS aggregator to stay in touch with the latest commands. There are feeds mirroring the 3 Twitter streams as well as for virtually every other subset (users, tags, functions,…):
Subscribe to the feed for:
- » all commands
- » commands with 3 up-votes (commandlinefu3)
- » commands with 10 up-votes (commandlinefu10)
- » commands tagged grep