Substitution For 'ps -aux | Grep [P]ROCESS'

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        as we know, invoking grep after ps with first letter of the PROCESS enclosed in brackets [] (like this: ps -aux | grep [P]ROCESS), excludes grep PROCESS from the output. so, instead of typing those brackets manualy every time, we may use the code below:

FIRST=`echo $1 | sed -e 's/^\(.\).*/\1/'`
REST=`echo $1 | sed -e 's/^.\(.*\)/\1/'`
ps -aux | grep "[$FIRST]$REST"

you may use it as separate shell-script -- like this:

#!/bin/sh
FIRST=`echo $1 | sed -e 's/^\(.\).*/\1/'`
REST=`echo $1 | sed -e 's/^.\(.*\)/\1/'`
ps -aux | grep -v "full/path/to/your/script" | grep "[$FIRST]$REST"

or just include it in your .bashrc or similar -- like this:

function psg
{
FIRST=`echo $1 | sed -e 's/^\(.\).*/\1/'`
REST=`echo $1 | sed -e 's/^.\(.*\)/\1/'`
ps -aux | grep "[$FIRST]$REST"
}

Tags:
• bash
• grep
• ps
• sed
• shell

Comments

Snippets Manager replied on Tue, 2010/04/13 - 7:21am

RTFM ps -C for what??!

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Snippets Manager replied on Mon, 2010/06/21 - 5:37am

BASH has internal functions for string manipulation. You can reduce the function code to this:

psg () 
{
ps aux | grep "[${1:0:1}]${1:1}"
}

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