how to grep parent process PID in shell scripting Post: 302328788

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parent shell pid

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I have always used the "$$" environment variable to find the current process number. Is there any similar way or perhaps something else to easily find the parent process number? I realize I could do something like ps and grep for the process and cut or awk out the parent process but I wanted to...

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How to get the parent PID only in Solaris?

Hi, I am using this command fuser_result=`fuser -f /web/$1/admin-*/logs/access` to get the parent pid of the process. However, The output differs and at times it shows two pids instead of one thus failing the logic of my script. See output below: bash-3.2$ fuser -f...

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numsum

NUMSUM(1)						User Contributed Perl Documentation						 NUMSUM(1)

NAME

       numsum - numsum program file

SYNOPSIS

       numsum [-iIcdhrsvxy] <FILE>

       | numsum [-iIcdhrsvxy]	(Input on STDIN from pipeline.)

       numsum [-iIcdhrsvxy]	(Input on STDIN.  Use Ctrl-D to stop.)

DESCRIPTION

       numsum will take all the numbers on stdin and return the sum of those numbers.  Currently it only processes the first number on each line.
       Besides positive numbers, it also handles negative numbers and numbers with decimals.

OPTIONS

	   -i  Only return the integer portion of the final sum.
	   -I  Only return the decimal portion of the final sum.

	   -c	   Print out the sum of each column.
	   -r	   Print out the sum of each row.

	   -x <n>  Specify a comma seperated list of columns to print.
	   -y <n>  Specify a comma seperated list of rows to print.

	   -s <string> Specify a string to use as a seperator for columns.
		       This defaults to be consecutive whitespace (s+).

	   -h  Help: You're looking at it.
	   -V  Increase verbosity.
	   -d  Debug mode.  For developers
	   -q  Quiet mode, don't print any warnings.

EXAMPLES

       Simply add up the numbers in a file.
	   $ numsum numbers.txt
	   4315

       Enter your own numbers on STDIN. The last number is the answer.
	   $ numsum
	   4
	   21
	   98
	   100
	   223

       Use it in a command pipeline.
	   $ ls -1s | grep .mp3 | numsum -c -x 5
	   72288

       Add up the total byte count in a http log file.
	   $ cat access_log | awk {'print $10'} numsum

	   or

	   numsum -c -x 10 access_log

       Add up the columns of numbers of a file.

	   $ cat columns
	   1 6 11 16 21
	   2 7 12 17 22
	   3 8 13 18 23
	   4 9 14 19 24
	   5 10 15 20 25
	   $ numsum -c columns
	   15 40 65 90 115

       Add up the 1st, 2nd and 5th columns only.

	   $ numsum -c -x 1,2,5 columns
	   15 40 115

       Add up the rows of numbers of a file.

	    $ numsum -r columns
	    55
	    60
	    65
	    70
	    75

       Add up the 2nd and 4th rows.

	    $ numsum -r -y 2,4 columns
	    60
	    70

SEE ALSO

       numaverage(1), numbound(1), numinterval(1), numnormalize(1), numgrep(1), numprocess(1), numrandom(1), numrange(1), numround(1)

COPYRIGHT

       numsum is part of the num-utils package, which is copyrighted by Suso Banderas and released under the GPL license.  Please read the COPYING
       and LICENSE files that came with the num-utils package

	 Developers can read the GOALS file and contact me about providing
       submitions or help for the project.

MORE INFO

       More info on numsum can be found at:

       http://suso.suso.org/programs/num-utils/

perl v5.10.1							    2009-10-31								 NUMSUM(1)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

parent shell pid

Discussion started by: maheshwin

2. Shell Programming and Scripting

Environment Variable Parent PID

Discussion started by: scotbuff

3. UNIX for Dummies Questions & Answers

Need to get pid of a process and have to store the pid in a variable

Discussion started by: samudha

4. Shell Programming and Scripting

Find shell process pid launched throug `at`.

Discussion started by: kukuruku