Search for a process by name

psgrep() ... func to long, please look under "description"

David thanks for that grep inside! here is mine version: psgrep() { case ${1} in ( -E | -e ) local EXTENDED_REGEXP=1 shift 1 ;; *) local EXTENDED_REGEXP=0 ;; esac if [[ -z ${*} ]] then echo "psgrep - grep for process(es) by keyword" >&2 echo "Usage: psgrep [-E|-e] ... " >&2 echo "" >&2 echo "option [-E|-e] enables full extended regexp support" >&2 echo "without [-E|-e] plain strings are looked for" >&2 return 1 fi \ps -eo 'user,pid,pcpu,command' w | head -n1 local ARG='' if (( ${EXTENDED_REGEXP} == 0 )) then while (( ${#} > 0 )) do ARG="${1}" shift 1 local STRING=${ARG} local LENGTH=$(expr length ${STRING}) local FIRSCHAR=$(echo $(expr substr ${STRING} 1 1)) local REST=$(echo $(expr substr ${STRING} 2 ${LENGTH})) \ps -eo 'user,pid,pcpu,command' w | grep "[${FIRSCHAR}]${REST}" done else \ps -eo 'user,pid,pcpu,command' w | grep -iE "(${*})" fi }

-10

By: Xk2c

2015-01-01 02:58:48

look grep function ps

4 Alternatives + Submit Alt

Search for a process by name

ps and grep is a dangerous combination -- grep tries to match everything on each line (thus the all too common: grep -v grep hack). ps -C doesn't use grep, it uses the process table for an exact match. Thus, you'll get an accurate list with: ps -fC sh rather finding every process with sh somewhere on the line. Show Sample Output
This is sample output - yours may be different.
```
# ps -fC sshd
UID        PID  PPID  C STIME TTY          TIME CMD
root      3530     1  0  2014 ?        00:00:00 /usr/sbin/sshd
root      3573  3530  0 08:21 ?        00:00:00 sshd: root@pts/0
```
14

ps -fC PROCESSNAME

pooderbill · 2015-04-20 13:09:44 17
Search for a process by name

I like this method because I can make use of pgrep which also has the -f flag that can use regex to match patterns in the full command line string. It will also do ps -fww on all pids returned by pgrep, providing a list of process matching the regex provided. Show Sample Output
This is sample output - yours may be different.
```
UID        PID  PPID  C STIME TTY          TIME CMD
ntp      24062     1  0 Apr21 ?        00:00:00 ntpd -u ntp:ntp -p /var/run/ntpd.pid -g
```
0

ps -fwwp $(pgrep process_name)

acesaro · 2015-04-23 13:29:57 9

Shortcut to search a process by name

Function that searchs a process by its name and shows in the terminal. * Shows the Header for reference * Hides the process 'grep' from the list * Case sensitive Show Sample Output

-1

psg(){ ps aux | grep -v grep | egrep -e "$1|USER"; }

ivanalejandro0 · 2014-12-31 22:27:27 9

Search for a process by name

Function that searchs for process by its name: * Shows the Header for reference * Hides the process 'grep' from the list * Case sensitive The typical problem with using "ps | grep" is that the grep process shows up the in the output. The usual solution is to search for "[p]attern" instead of "pattern". This function turns the parameter into just such a [p]attern. ${1:0:1} is the first character of $1 . ${1:1} is characters 2-end of $1 Show Sample Output
This is sample output - yours may be different.
```
$ psg fire
USER       PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
root      1102  0.0  0.2 326352 12884 ?        Ssl   2014   0:00 /usr/bin/python -Es /usr/sbin/firewalld --nofork --nopid
flatcap  25571  7.1  7.5 1362784 451836 ?      Sl    2014   1:31 /usr/lib64/firefox/firefox
```
-2

psg(){ ps aux | grep -E "[${1:0:1}]${1:1}|^USER"; }

flatcap · 2015-01-01 00:12:45 9

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What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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