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Terminal - All commands - 12,273 results
host <domain> <nameserver name>
2009-09-29 18:58:28
User: DoGik
Functions: host

Its very useful when you do not have control over name servers and need to check DNS configuration directly, right after change. You will not need to wait for DNS propagation to verify if all records were configured properly by vendors of name servers.

sudo /etc/acpi/sleep.sh sleep
2010-08-03 23:54:49
User: jmfork
Functions: sudo
Tags: sleep suspend

It suspends to RAM: you always need your batteries for the RAM but it saves time as there is no need to slowly archive everything on your hard disk.

It works fine with me but if anyone has a nicer way, please contribute.

gpg -ab file.txt
gpg -ser 'myfriend@gmail.com' file.txt
2011-09-17 04:51:02
User: kev
Functions: gpg
Tags: GPG


Make a signature.


Encrypt data.


Encrypt for user id name.

curl sputnick-area.net/ua
2011-10-24 09:57:50
User: sputnick
Tags: curl headers

That's useful when you're doing some web scraping http://en.wikipedia.org/wiki/Web_scraping and you're trying to test your possibly fake user-agent.

grep -H -r "string" ./* >> grep.txt
cut -f 3 | uniq
wget http://checkip.dyndns.org/ -q -O - | grep -Eo '\<[[:digit:]]{1,3}(\.[[:digit:]]{1,3}){3}\>'
launchctl load /Library/LaunchDaemons/<plist config filename>.plist
2011-02-01 17:02:49
User: frank514

to unload Daemon, use: launchctl unload /Library/LaunchDaemons/.plist

(cd /source/dir ; tar cvf - .)|(cd /dest/dir ; tar xvpf -)
openssl rand -base64 1000 | tr "[:upper:]" "[:lower:]" | tr -cd "[:alnum:]" | tr -d "lo" | cut -c 1-8 | pbcopy
2009-12-29 17:18:25
User: _eirik
Functions: cut tr

eliminates "l" and "o" characters change length by changing 'x' here: cut -c 1-x

cat file.txt | sendmail -F myname -f admin@mysite.com guest@guest.com
watch -n 1 cat /proc/net/wireless
2012-06-07 10:38:21
User: cantormath
Functions: cat watch

Values will depend on the driver and the hardware specifics, so you need to refer to your driver documentation for proper interpretation of those values.

perl -e 'use Date::Calc qw(Today Week_Number); $weekn = Week_Number(Today); print "$weekn\n"'
cd <YOUR_DIRECTORY>; for i in `ls ./`; do tar czvf "$i".tar.gz "$i" ; done
2009-06-11 18:33:27
User: ElAlecs
Functions: cd tar

Very simple and useful, you need to change the word "directory" for your directory

tar -zcvpf backup_`date +"%Y%m%d_%H%M%S"`.tar.gz `find <target> -atime +5 -type f` 2> /dev/null | parallel -X rm -f
2010-01-28 12:41:41
Functions: rm tar

This deals nicely with files having special characters in the file name (space ' or ").

Parallel is from https://savannah.nongnu.org/projects/parallel/

alias whatismyip="wget -q -O - http://whatismyip.com/automation/n09230945.asp"
2009-10-30 15:42:52
User: gibboris
Functions: alias

The preferred way for scripts (and easier to parse)

MyVAR=84; awk '{ print "'"$MyVAR"'" }'
tail /var/log/auth.log -n 100
UNIQUE_BY_MAC=$(ifconfig |grep eth0|awk '{ print strtonum("0x"substr($6,16,2)) }')
2010-06-01 17:34:43
User: rubo77
Functions: awk grep ifconfig

gets the last number of the mac address to use it for other stuff

screen -x `screen -ls | grep Detached | cut -c -10`
2012-03-01 14:13:09
User: peter4512
Functions: cut grep screen
Tags: gnu screen

I alias this as "tach":

alias tach='screen -x `screen -ls | grep Detached | cut -c -10`'

If you have several detached sessions it will just grab the first one. If you're running nested screens you can open new outer windows and run tach repeatedly to grab all the detached sessions into that one.

ips(){ for if in ${1:-$(ip link list|grep '^.: '|cut -d\ -f2|cut -d: -f1)};do cur=$(ifconfig $if|grep "inet addr"|sed 's/.*inet addr:\([0-9\.]*\).*/\1/g');printf '%-5s%-15s%-15s\n' $if $cur $(nc -s $cur sine.cluenet.org 128 2>/dev/null||echo $cur);done;}
2009-08-07 10:04:46
User: frozenfire
Functions: cut echo grep ifconfig link sed

Gets the internal and external IP addresses of all your interfaces, or the ones given as arguments

kudzu -p
2009-05-12 10:34:59
Functions: kudzu

Kudzu is available on CentOS, used for configuring and detecting new hardware device installed, is also usefull for device listing.

curl --basic --user username:password --data status="Twitter from commandline with curl" https://twitter.com/statuses/update.xml
2010-07-06 05:25:51
User: emacs

--basic --user username:password

This will authenticate your Twitter username and password

--data status=""

Send data to the API with POST HTTP form.

lsof | grep 'DEL.*lib' | cut -f 1 -d ' ' | sort -u
2011-05-30 20:45:58
User: leenucks
Functions: cut grep sort

Useful after a complete system update (without a new kernel) when you want to know, which processes need to be restarted