Commands using awk sorted by votes

Commands using awk (1,418)

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netstat -p recoded (totaly useless..)

Ok so it's rellay useless line and I sorry for that, furthermore that's nothing optimized at all... At the beginning I didn't managed by using netstat -p to print out which process was handling that open port 4444, I realize at the end I was not root and security restrictions applied ;p It's nevertheless a (good ?) way to see how ps(tree) works, as it acts exactly the same way by reading in /proc So for a specific port, this line returns the calling command line of every thread that handle the associated socket
This is sample output - yours may be different.
-5

p=$(netstat -nate 2>/dev/null | awk '/LISTEN/ {gsub (/.*:/, "", $4); if ($4 == "4444") {print $8}}'); for i in $(ls /proc/|grep "^[1-9]"); do [[ $(ls -l /proc/$i/fd/|grep socket|sed -e 's|.*\[$.*$\]|\1|'|grep $p) ]] && cat /proc/$i/cmdline && echo; done

j0rn · 2009-04-30 12:39:48 629
Kill a daemon by name, not by PID

Just find out the daemon with $ netstat -atulpe. Then type in his name and he gets the SIGTERM.
This is sample output - yours may be different.
-5

kill_daemon() { echo "Daemon?"; read dm; kill -15 $(netstat -atulpe | grep $dm | cut -d '/' -f1 | awk '{print $9}') }; alias kd='kill_daemon

P17 · 2009-05-26 20:39:56 7
To print a specific line from a file

I don't know if it's better but works fine :)
This is sample output - yours may be different.
-5

awk '{if (NR == 3) print}' <file>

yooreck · 2009-10-19 15:58:09 5
search for and kill a process in one blow
This is sample output - yours may be different.
-5

ps aux|grep -i [p]rocessname|awk '{ print $2 }'|xargs kill

billcarroll · 2010-04-10 18:42:27 17
How many lines does the passwd file have?
This is sample output - yours may be different.
-5

awk 'END {print NR}' /etc/passwd

Leo_Gutierrez · 2011-06-23 00:33:40 3
Print only the odd lines of a file
This is sample output - yours may be different.
-6

awk '{if (NR % 2 == 1) print $0}' file.txt

twopoint718 · 2009-02-05 18:43:19 24
Check if Fail2Ban is Running

Check if Fail2Ban is running on the system and alert it with a message in the terminal Show Sample Output
This is sample output - yours may be different.
```
[INFO] Fail2Ban is not running

or:

[INFO] Fail2Ban is running and the PID is 3557
```
-6

FAIL2BAN=`ps ax | grep fail2ban | grep -v grep | awk {'print $1'}` && if [ -n "$FAIL2BAN" ]; then printf "\n[INFO] Fail2Ban is running and the PID is %s\n\n" $FAIL2BAN; else printf "\n [INFO] Fail2Ban is not running\n\n"; fi

fmdlc · 2009-02-11 04:36:49 8
kill some pids without specific pid

search_criteria = what do you want to kill pid = pid of you dont kill
This is sample output - yours may be different.
-6

kill -9 `ps aux | grep "search_criteria" | awk '{if ($2 != pid) print $2}'`

ozgurkuru · 2010-09-16 08:52:59 6
Kill any process with one command using program name

Removed unneeded grep -v by making the initial grep unable to match itself.
This is sample output - yours may be different.
-6

ps -ef | grep [j]boss | awk '{print $2}'|xargs kill -9

utoxin · 2010-09-30 15:55:41 3
get LAN ip

get the ip address on your LAN Show Sample Output
This is sample output - yours may be different.
```
192.168.1.102
```
-6

ifconfig |grep broadcast | awk '{print $2}'

fotoflo · 2012-12-05 03:57:46 4
ps -ef | grep PROCESS | grep -v grep | awk '{system "kill -9" $2}
This is sample output - yours may be different.
-6

ps -ef | grep PROCESS | grep -v grep | awk '{system "kill -9" $2}

pepin · 2015-03-21 21:25:07 11
This is a nice way to kill processes.. the example below is for firefox!!! substitute firefox for whatever the process name is...

This is a nice way to kill processes.. the example here is for firefox!!! substitute firefox for whatever the process name is... Show Sample Output
This is sample output - yours may be different.
```
kill -9 7491 
kill -9 7506 
kill -9 7434 
kill -9 7532
```
-7

ps aux | grep -i firefox | grep -v grep | awk '{print $2}' | xargs -t -i kill -9 {}

blackdude · 2009-02-19 18:50:00 11
kill all instances of an annoying or endless, thread-spawning process
This is sample output - yours may be different.
-7

ps auxwww | grep outofcontrolprocess | awk '{print $9}' | xargs kill -9

fpater · 2009-02-20 21:49:38 6
Kill all processes matching a given name

This command kills all processes with 'SomeCommand' in the process name. There are other more elegant ways to extract the process names from ps but they are hard to remember and not portable across platforms. Use this command with caution as you could accidentally kill other matching processes! xargs is particularly handy in this case because it makes it easy to feed the process IDs to kill and it also ensures that you don't try to feed too many PIDs to kill at once and overflow the command-line buffer. Note that if you are attempting to kill many thousands of runaway processes at once you should use 'kill -9'. Otherwise the system will try to bring each process into memory before killing it and you could run out of memory. Typically when you want to kill many processes at once it is because you are already in a low memory situation so if you don't 'kill -9' you will make things worse
This is sample output - yours may be different.
-7

ps axww | grep SomeCommand | awk '{ print $1 }' | xargs kill

philiph · 2009-02-28 17:48:51 11
Pretty print output of

Show Sample Output
This is sample output - yours may be different.
```
1:
root
3410
00:00:00
gpm -m /dev/input/mice -t exps2

2:
root
3424
00:00:00
crond

3:
root
3488
00:00:00
/usr/sbin/atd
```
-8

ps -ef | awk -v OFS="\n" '{ for (i=8;i<=NF;i++) line = (line ? line FS : "") $i; print NR ":", $1, $2, $7, line, ""; line = "" }'

djangofan · 2012-12-04 15:59:53 9
send Everyone on your machine some love

This works just like write or wall ... cept one thing the sender is anonymous ... if you really want to drive everyone insane replace echo \"The Matrix has you...\" with cat /dev/urandom nice one to do on April fool's day Show Sample Output
This is sample output - yours may be different.
```
The Matrix has you... (on all writable ttys)
```
-12

w | egrep -v '(load|FROM)' | awk '{print $2}' | sed 's/^/tty/' | awk '{print "echo \"The Matrix has you...\" >> /dev/" $1}' | bash

copremesis · 2009-04-29 22:04:56 10
get LAN ip

get the ip address on your LAN Show Sample Output
This is sample output - yours may be different.
```
192.168.1.102
```
-12

ifconfig |grep broadcast | awk '{print $2}'

fotoflo · 2012-12-05 03:57:51 9
for i in $(grep 'mystring' myfile1)|awk '{print $1}'); do grep $1 myfile2;done
This is sample output - yours may be different.
-14

for i in $(grep 'mystring' myfile1)|awk '{print $1}'); do grep $1 myfile2;done

msh · 2011-03-15 16:18:29 5
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Hostname tab-completion for ssh

This is meant for the bash shell. Put this function in your .profile and you'll be able to use tab-completion for sshing any host which is in your known_hosts file. This assumes that your known_hosts file is located at ~/.ssh/known_hosts. The "complete" command should go on a separate line as such: function autoCompleteHostname() { local hosts=($(awk '{print $1}' ~/.ssh/known_hosts | cut -d, -f1)); local cur=${COMP_WORDS[COMP_CWORD]}; COMPREPLY=($(compgen -W '${hosts[@]}' -- $cur )) } complete -F autoCompleteHostname ssh

Battery real life energy vs predicted remaining plotted

This time I added a print to reemaining energy, every minute, time stamped. The example shown here is complete and point to large discrepancies as time passes, converging to accuracy near the end.

pip install into current directory without virtualenv

For subsequent commands in the prefixed path: $ PYTHONPATH=$PWD/lib/python*/site-packages ./bin/pip --version

Install pip with Proxy

Installs pip packages defining a proxy

Write comments to your history.

A null operation with the name 'comment', allowing comments to be written to HISTFILE. Prepending '#' to a command will *not* write the command to the history file, although it will be available for the current session, thus '#' is not useful for keeping track of comments past the current session.

Checks apache's access_log file, strips the search queries and shoves them up your e-mail

as unixmonkey7109 pointed out, first awk parse replaces three steps.

A very quick and slick fork bomb. Handle with care. Don't run on production please...

View Processeses like a fu, fu

Shows a less detailed output, made only of the process tree and their pids.

Determine whether a CPU has 64 bit capability or not

Check if you have 64bit by looking for "lm" in cpuinfo. lm stands for "long mem". This can also be used without being root.

Functions to display, save and restore $IFS

You can display, save and restore the value of $IFS using conventional Bash commands, but these functions, which you can add to your ~/.bashrc file make it really easy. To display $IFS use the function ifs shown above. In the sample output, you can see that it displays the characters and their hexadecimal equivalent. This function saves it in a variable called $saveIFS: $ sifs () { saveIFS=$IFS; } Use this function to restore it $ rifs () { IFS=$saveIFS; } Add this line in your ~/.bashrc file to save a readonly copy of $IFS: $ declare -r roIFS=$IFS Use this function to restore that one to $IFS $ rrifs () { IFS=$roIFS; }

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Commands using awk (1,418)

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