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Terminal - All commands - 12,060 results
xmms2 mlib search added \> $(echo $(date +%s) - 604800|bc)
cat filename | mail -s "Email subject" [email protected]
2009-09-20 01:38:23
Functions: cat mail
Tags: cat mail
2

This just reads in a local file and sends it via email. Works with text or binary. *Requires* local mail server.

xev -id `xwininfo | grep 'Window id' | awk '{print $4}'`
2009-09-19 22:47:16
User: ktoso
Functions: awk grep
2

After executing this, click on a window you want to track X Window events in.

Explaination: "xev will track events in the window with the following -id, which we get by greping window information obtained by xwininfo"

ss -p
2009-09-19 21:55:01
User: Escher
46

for one line per process:

ss -p | cat

for established sockets only:

ss -p | grep STA

for just process names:

ss -p | cut -f2 -sd\"

or

ss -p | grep STA | cut -f2 -d\"
seq -s " " -w 3 20
echo $(date +%s) > start-time; URL=http://www.google.com; while true; do echo $(curl -L --w %{speed_download} -o/dev/null -s $URL) >> bps; sleep 10; done &
2009-09-19 21:26:06
User: matthewbauer
Functions: date echo sleep
9

This will log your internet download speed.

You can run

gnuplot -persist <(echo "plot 'bps' with lines")

to get a graph of it.

lsof -P -i -n | cut -f 1 -d " "| uniq | tail -n +2
(IFS=:;for p in $PATH; do test -d $p || echo $p; done)
2009-09-19 17:51:06
User: haivu
Functions: echo test
Tags: bash PATH
9

I often need to know of my directory in the PATH, which one DOES NOT exist. This command answers that question

* This command uses only bash's built-in commands

* The parentheses spawn a new sub shell to prevent the modification of the IFS (input field separator) variable in the current shell

(sp-sc sop://broker.sopcast.com:3912/6002 3900 8900 &>/dev/null &); sleep 10; mplayer http://localhost:8900/tv.asf
2009-09-19 17:46:13
User: Escher
Functions: sleep
1

Get sopcast links for live sports from http://myp2p.eu (for example)

Get sp-sc or sp-auth binary by googling (sopcast + linux)

eg http://www.jbg.f2s.com/sp-sc.gz

Requires the 32bit libstdc++5 package.

After exiting mplayer, type 'killall sp-sc'

netstat -lantp | grep -i stab | awk -F/ '{print $2}' | sort | uniq
2009-09-19 14:54:31
User: ProMole
Functions: awk grep netstat sort
7

Show apps that use internet connection at the moment.

Can be used to discover what programms create internet traffic. Skip the part after awk to get more details, though it will not work showing only unique processes.

This version will work with other languages such as Spanish and Portuguese, if the word for "ESTABLISHED" still contain the fragment "STAB"(e.g. "ESTABELECIDO")

netstat -lantp | grep -i establ | awk -F/ '{print $2}' | sort | uniq
netstat -lantp | grep -i establ | awk -F/ '{print $2}' | uniq | sort
2009-09-19 13:54:36
User: ktoso
Functions: awk grep netstat uniq
-1

Can be used to discover what programms create internet traffic. Skip the part after awk to get more details.

Has anyone an idea why the uniq doesn't work propperly here (see sample output)?

echo -ne "\033]0;`id -un`:`id -gn`@`hostname||uname -n|sed 1q` `who -m|sed -e "s%^.* \(pts/[0-9]*\).*(\(.*\))%[\1] (\2)%g"` [`uptime|sed -e "s/.*: \([^,]*\).*/\1/" -e "s/ //g"` / `ps aux|wc -l`]\007"
2009-09-19 06:57:53
User: AskApache
Functions: echo
4

I usually have 5 or more ssh connections to various servers, and putting this command in my .bash_profile file makes my putty window or x terminal window title change to this easily recognizable and descriptive text. Includes the username, group, server hostname, where I am connecting from (for SSH tunneling), which device pts, current server load, and how many processes are running.

You can also use this for your PROMPT_COMMAND variable, which updates the window title to the current values each time you exec a command.

I prefix running this in my .bash_profile with

[[ ! -z "$SSH_TTY" ]] &&

which makes sure it only does this when connecting via SSH with a TTY.

Here's some rougher examples from http://www.askapache.com/linux-unix/bash_profile-functions-advanced-shell.html

# If set, the value is executed as a command prior to issuing each primary prompt. #H=$((hostname || uname -n) 2>/dev/null | sed 1q);W=$(whoami) #export PROMPT_COMMAND='echo -ne "\033]0;${W}@${H}:${PWD/#$HOME/~} ${SSH_TTY/\/dev\//} [`uptime|sed -e "s/.*: \([^,]*\).*/\1/" -e "s/ //g"`]\007"' #PROMPT_COMMAND='echo -ne "\033]0;`id -un`:`id -gn`@`hostname||uname -n 2>/dev/null|sed 1q` `command who -m|sed -e "s%^.* \(pts/[0-9]*\).*(\(.*\))%[\1] (\2)%g"` [`uptime|sed -e "s/.*: \([^,]*\).*/\1/" -e "s/ //g"` / `command ps aux|wc -l`]\007"' #[[ -z "$SSH_TTY" ]] || export PROMPT_COMMAND #[[ -z "$SSH_TTY" ]] && [[ -f /dev/stdout ]] && SSH_TTY=/dev/stdout

And here's a simple function example for setting the title:

function set_window_title(){ echo -e "\033]0; ${1:-$USER@$HOST - $SHLVL} \007"; }
for p in ${PATH//:/ }; do [[ -d $p && -x $p ]] && echo $p; done
2009-09-19 06:43:57
User: AskApache
Functions: echo
1

Finds executable and existing directories in your path that can be useful if migrating a profile script to another system. This is faster and smaller than any other method due to using only bash builtin commands.

See also:

+ http://www.commandlinefu.com/commands/view/743/list-all-execs-in-path-usefull-for-grepping-the-resulting-list

+ http://www.askapache.com/linux-unix/bash_profile-functions-advanced-shell.html

loadkeys uk
gst-launch-0.10 v4l2src ! ffmpegcolorspace ! warptv ! ffmpegcolorspace ! autovideosink
2009-09-18 18:56:35
User: Escher
0

in place of warptv use shagadelictv, edgetv, agingtv, dicetv, vertigotv, revtv or quarktv (see 'gst-inspect-0.10 effectv'. Requires gstreamer-plugins-good (or gstreamer0.10-plugins-good ).

For slow webcams use something like

gst-launch-0.10 v4l2src ! video/x-raw-yuv,width=320,height=240 ! ffmpegcolorspace ! warptv ! ffmpegcolorspace ! autovideosink

.

For basic webcam view via gstreamer use

gst-launch-0.10 v4l2src ! autovideosink
printf "%02u " {3..20}; echo
2009-09-18 18:48:41
User: Escher
Functions: printf
Tags: bash strings
0

emulates bash4's "echo {03..20}"

Uses bash3 builtin function printf

for s in `seq -f %02.0f 5 15`; do echo $s; done
2009-09-18 13:21:38
User: Yeraze
Functions: echo
Tags: bash seq
0

Uses 'seq' with formatting parameter to generate the necessary padded sequence. Change '%02.0f' to how many digits you need (for 3, use %03.0f, etc) and replace 5 & 15 with your desired min and max.

bonnie++ -n 0 -u 0 -r <physical RAM> -s <2 x physical ram> -f -b -d <mounted disck>
2009-09-18 09:46:44
User: lv4tech
6

You need bonnie++ package for this. More detail than a simple hdparm -t /dev/sda would give you.

the -d is the directory where it performs writes/reads for example I use /tmp/scratch with 777 permissions

Bonnie++ benchmarks three things: data read and write speed, number of seeks that can be performed per second, and number of file metadata operations that can be performed per second.

echo "Decode this"| tr [a-zA-Z] $(echo {a..z} {A..Z}|grep -o .|sort -R|tr -d "\n ")
for i in {0..1}{0..9}; do echo $i; done
2009-09-18 02:51:12
User: dennisw
Functions: echo
Tags: bash strings
-1

Bash 4 will let you do {00..19} to get leading zeros, but Bash 3 doesn't have that feature. This technique gets you partway there (the sequences need be such that the last digit ranges from zero to nine - you can't use this for something like Bash 4's {03..27}, for example). When this limitation is not a problem, you can avoid some complicated string manipulation for concatenating leading zeros.

You can add more digits like this: {0..1}{0..9}{0..9} (ranges from 0 to 99 with up to two leading zeros). To pad with additional zeros:

for i in 000{0..1}{0..9}; do echo $i; done

or

for i in {0..1}{0..9}; do echo "000$i"; done

This is useful for creating values to sort or for creating filenames with a fixed format. Note that this will also work:

touch {0..1}{0..9}
git diff --numstat | awk '{if ($1 == "0" && $2 == "0") print $3}' | xargs git checkout HEAD
2009-09-17 22:12:50
User: lingo
Functions: awk diff xargs
5

I sometimes (due to mismanagement!) end up with files in a git repo which have had their modes changed, but not their content. This one-liner lets me revert the mode changes, while leaving changed-content files be, so I can commit just the actual changes made.

echo 127.0.0.1 | egrep -e '^(([01]?[0-9]{1,2}|2[0-4][0-9]|25[0-4])\.){3}([01]?[0-9]{1,2}|2[0-4][0-9]|25[0-4])$'
2009-09-17 17:40:48
User: arcege
Functions: echo egrep
-1

Handles everything except octets with 255. Ran through ip generator with variable octet lengths.

perl -wlne 'print $1 if /(([01]?\d\d?|2[0-4]\d|25[0-5])\.([01]?\d\d?|2[0-4]\d|25[0-5])\.([01]?\d\d?|2[0-4]\d|25[0-5])\.([01]?\d\d?|2[0-4]\d|25[0-5]))/' iplist
2009-09-17 16:14:52
User: salparadise
Functions: perl
-1

if you want to only print the IP address from a file.

In this case the file will be called "iplist" with a line like "ip address 1.1.1.1"

it will only print the "1.1.1.1" portion