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Terminal - All commands - 11,590 results
bind -p | grep -F "\C"
2009-02-03 16:22:14
User: root
Functions: grep
5

Useful for getting to know the available keyboard shortcuts.

function sshdel { perl -i -n -e "print unless (\$. == $1)" ~/.ssh/known_hosts; }
2009-02-03 16:20:50
User: xsawyerx
Functions: perl
-1

sometimes you got conflicts using SSH (host changing ip, ip now belongs to a different machine) and you need to edit the file and remove the offending line from known_hosts. this does it much easier.

(> errors.log) && tail -f !^
2009-02-03 16:08:19
User: root
Functions: tail
2

This is useful for keeping an eye on an error log while developing. The !^ pulls the first arg from the previous command (which needs to be run in a sub-shell for this shortcut to work).

cat /etc/issue
iptables -A INPUT -s 222.35.138.25/32 -j DROP
2009-02-02 12:42:04
User: root
Functions: iptables
10

This appends (-A) a new rule to the INPUT chain, which specifies to drop all packets from a source (-s) IP address.

wget -O - http://www.commandlinefu.com/commands/browse/rss 2>/dev/null | awk '/\s*<title/ {z=match($0, /CDATA\[([^\]]*)\]/, b);print b[1]} /\s*<description/ {c=match($0, /code>(.*)<\/code>/, d);print d[1]"\n"} '
curl --basic --user "user:pass" --data-ascii "status=tweeting%20from%20%the%20linux%20command%20line" http://twitter.com/statuses/update.json
2009-01-30 18:08:35
User: g__j
2

great for outputting tweets from cron jobs and batch scripts

echo -e "[mysql]\npager=less -niSFX" >> ~/.my.cnf
2009-01-29 11:45:52
User: boombastic
Functions: echo
5

Changes standard mysql client output to 'less'.

In another words makes query results of mysql command line client to look much better.

tar czv file1 file2 folder1 | ssh user@server tar zxv -C /destination
2009-01-29 10:38:26
User: xsawyerx
Functions: ssh tar
13

it compresses the files and folders to stdout, secure copies it to the server's stdin and runs tar there to extract the input and output to whatever destination using -C. if you emit "-C /destination", it will extract it to the home folder of the user, much like `scp file user@server:`.

the "v" in the tar command can be removed for no verbosity.

svn status |grep '\?' |awk '{print $2}'| xargs svn add
2009-01-29 10:33:22
User: xsawyerx
Functions: xargs
13

checks which files are not under version control, fetches the names and runs them through "svn add". WARNING: doesn't work with white spaces.

ping google.com | tee ping-output.txt
2009-01-29 10:26:59
User: root
Functions: ping tee
2

The tee (as in "T" junction) command is very useful for redirecting output to two places.

perl -pi.bk -e's/foo/bar/g' file1 file2 fileN
2009-01-29 09:51:11
User: xsawyerx
Functions: perl
10

the addition of ".bk" to the regular "pie" idiom makes perl create a backup of every file with the extension ".bk", in case it b0rks something and you want it back

perl -pi -e's/foo/bar/g' file1 file2 fileN
2009-01-29 09:47:01
User: xsawyerx
Functions: perl
0

The "g" at the end is for global, meaning replace all occurrences and not just the first one.

reset
2009-01-28 22:22:01
User: root
Functions: reset
256

If you bork your terminal by sending binary data to STDOUT or similar, you can get your terminal back using this command rather than killing and restarting the session. Note that you often won't be able to see the characters as you type them.

git log master | awk '/commit/ {id=$2} /\s+\w+/ {print id, $0}'
2009-01-28 13:32:08
User: root
Functions: awk
3

Useful when quickly looking for a commit id from a branch to use with git cherry-pick.

URL=www.example.com && wget -rq --spider --force-html "http://$URL" && find $URL -type d > url-list.txt && rm -rf $URL
2009-01-27 17:59:08
User: root
Functions: find rm wget
1

This spiders the given site without downloading the HTML content. The resulting directory structure is then parsed to output a list of the URLs to url-list.txt. Note that this can take a long time to run and you make want to throttle the spidering so as to play nicely.

wget -r -l1 --no-parent -nH -nd -P/tmp -A".gif,.jpg" http://example.com/images
2009-01-27 17:31:22
User: root
Functions: wget
33

This recursively downloads all images from a given website to your /tmp directory. The -nH and -nd switches disable downloading of the directory structure.

watch -n 30 uptime
2009-01-27 14:49:21
User: root
Functions: watch
3

This runs the uptime command every 30 seconds to avoid an SSH connection dropping due to inactivity. Granted there are better ways of solving this problem but this is sometimes the right tool for the job.

svn add --force *
2009-01-27 10:53:27
User: root
1

The --force option bypasses the warning if files are already in SVN.

ssh user@host "ps aux | grep httpd | wc -l"
2009-01-27 00:46:17
User: root
Functions: ssh
2

This counts the number of httpd processes running.

(cd /tmp && ls)
find /path/to/dir -type f -exec grep \-H "search term" {} \;
2009-01-26 16:32:14
User: root
Functions: find grep
-1

Simple use of find and grep to recursively search a directory for files that contain a certain term.

zip -r myfile.zip * -x \*.svn\*
rsync -av -e ssh user@host:/path/to/file.txt .
2009-01-26 13:39:24
User: root
Functions: rsync
1

You will be prompted for a password unless you have your public keys set-up.

^foo^bar
2009-01-26 13:25:37
User: root
446

Really useful for when you have a typo in a previous command. Also, arguments default to empty so if you accidentally run:

echo "no typozs"

you can correct it with

^z