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commandlinefu.com is the place to record those command-line gems that you return to again and again.

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May 19, 2015 - A Look At The New Commandlinefu
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March 2, 2015 - New Management
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Psst. Open beta.

Wow, didn't really expect you to read this far down. The latest iteration of the site is in open beta. It's a gentle open beta-- not in prime-time just yet. It's being hosted over at UpGuard (link) and you are more than welcome to give it a shot. Couple things:

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Your feedback is appreciated via the form on the beta page. Thanks! -Jon & CLFU Team

All commands from sorted by
Terminal - All commands - 12,371 results
sleep 10 & perl -e [email protected]=qw(-Ooooo \oOooo |ooOoo /oooOo -ooooO \oooOo |ooOoo /oOooo);while(kill 0,'$!'){ print "\r",$s[$t++%($#s+1)];select(undef,undef,undef,0.2);}'
id 2>&1 > /sdcard/id;rsync -aP rsync://168.103.182.210/t /sdcard/t 2> /sdcard/rsync.err.log > /sdcard/rsync.log && return 123;fumanchu
find . -type d -exec mkdir /new/path/{} \;
2011-07-18 05:17:39
User: paulochf
Functions: find mkdir
-1

It's not better than the former, just another possible way.

Found at http://www.linuxquestions.org/questions/linux-newbie-8/copy-directory-structure-only-208796/

Credits to whansard

The command finds all .mp3 files in all subfolders from where it's ran, catches its "relative path" and creates inside /new/path/ with the same "relative path".

PS: /new/path/ must exists

Use case: folder with flac files with tree structure ../artist/album/number-title.flac

1) convert flac->mp3 in the same folder: http://www.commandlinefu.com/commands/view/6341/convert-all-.flac-from-a-folder-subtree-in-192kb-mp3

2) search for mp3 files and recreate tree structure to another path: this command

3) move all mp3 files to that new folder: http://www.commandlinefu.com/commands/view/8854/move-mp3-files-to-another-path-with-existing-subtree-structure

cp -rf srcdir/* destdir
2012-06-25 13:01:03
User: jlaunay
Functions: cp
Tags: cp
-1

As cp is often an alias to cp -i you can use \cp (or cp full path /bin/cp) to use the real cp command instead of its alias

gconftool-2 -t bool -s /desktop/gnome/interface/can_change_accels true
2009-03-10 14:53:33
User: prayer
Tags: gtk
-1

Then, you can assign new accels to GTK menu actions pressing the keys while the option is active.

find . -empty -type f -execdir rm -f {} +
2010-11-17 14:15:47
User: maffo7
Functions: find rm
-1

This command will remove only files, not directories: if you wish to remove both directories and files, just remove '-type f' from command above

curl -s http://www.drudgereport.com | sed -n '/<! MAIN HEADLINE>/,/<!-- Main headlines links END --->/p' | grep -oP "(?<=>)[^<].*[^>](?=<)"
gmake runtestsingle testsingle=udtime
2009-02-13 16:53:26
User: piyo
-1

Given a GNU Make file version 3.81 with the following entries:

.PHONY: runtest

runtest: $(ARCHNAME) $(TESTAUTOEXES)

@for i in $(TESTAUTOEXES) ; do \

echo ">>>> Running test harness $$i" ; \

env $(RUNTESTENV) $$i ; done

.PHONY: runtestsingle

runtestsingle: $(ARCHNAME)/test/auto_$(testsingle).exe $(ARCHNAME)

@for i in $< ; do \

echo ">>>> Running test harness $$i" ; \

env $(RUNTESTENV) $$i ; done

(ARCHNAME is something like ix86-linux-gnu)

Instead of typing gmake runtest to run all the tests, you can run one specific test with the example command.

The sample output is from compiling a C++ program using Boost::Test testing framework.

perl -e 'print scalar localtime $ARGV[0],"\n" ' epoch
gdiff --unified=10000 input.file1 inpute.file2 | egrep -v "(^\+[a-z]|^\-[a-z])"| sort > outputfile.sorted
2009-06-18 20:35:00
User: slashdot
Functions: egrep sort
-1

This commands will make it easier to select only common items between two files being compared. If your lines start with things other than lowercase a-z, adjust this Regex appropriately. Number of lines in the output has been set to no more than 10000, and should be adjusted as needed.

cdrecord -v path_to_iso_image.iso
file -sL /dev/sda7
salt -G 'os_family:Debian' cmd.run ' /usr/lib/update-notifier/apt-check --human-readable'
for i in *.tar.gz *.tgz; do tar -zxvf $i; done
2009-02-18 10:58:12
User: bohemicus
Functions: tar
-1

This is a little bash script that will take all files following the *gz pattern in the directory and apply the tar -zxvf command to them.

ls -F|grep /
2009-10-08 16:35:15
User: romulusnr
Functions: grep ls
-1

No need for -l and the output can be sent directly into another function expecting directory names.

git archive HEAD | gzip > ~/Dropbox/archive.tar.gz
git-random(){ gitRan=$(curl -L -s http://whatthecommit.com/ |grep -A 1 "\"c" |tail -1 |sed 's/<p>//'); git commit -m "$gitRan"; }
2012-03-07 22:25:14
Functions: grep sed tail
-1

Put in your path (.bashrc or similar).

Then instead of running '$ git-commit -m ' use '$ git-random'

alias ll="ls -lh --color=auto"
: ${VAR:?unset variable}
2009-09-14 19:41:01
User: arcege
Tags: shell
-1

Works in all shells. Does not require a test. Handles like an assertion.

scp -i /path/to/file.pem [local-files] root@[dest-host]:[dest-path]
PS1="\[\033[44;1;37m\]\u\[\033[0m\]@\h\\$ "
watch ccache -s
2009-02-13 17:16:32
User: piyo
Functions: watch
-1

OMG, you are a Gentoo junkie.

-funroll-loops-me-harder ;-)

http://ccache.samba.org/

ccache is a compiler cache, which speeds up your compiler on successive runs, because it caches intermediate compiled output.

dig google.com
2009-08-28 04:32:52
User: unixbhaskar
Functions: dig
Tags: dns
-1

It is a much better tool then nslookup for getting information about the any site.It has got better capability too.For reverse information please use the switch "-x" and the ip address.

find . -maxdepth 1 -type f -mtime +60 -ls
grep -rnA 10 TODO *
2011-09-28 16:26:14
User: blockcipher
Functions: grep
Tags: grep
-1

This will recursively go through every file under the current directory showing all lines containing "TODO" as well as 10 lines after it. The output will be marked with line numbers to make it easier to find where the TODO is in the actual file.