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Full Discussion: Listing all child pid and deleting it in reverse order
Operating Systems Linux Red Hat Listing all child pid and deleting it in reverse order Post 302613493 by pratapsingh on Tuesday 27th of March 2012 11:38:39 AM
Old 03-27-2012
Error Listing all child pid and deleting it in reverse order
Hi ,

My problem is that I am not able to list all process id of any process.

Quote:

[root@server public_html]# pstree -p | grep httpd
|-httpd(17888)-+-httpd(9134)
| |-httpd(9136)-+-{httpd}(9140)
| | |-{httpd}(9141)
| | |-{httpd}(9142)
| | |-{httpd}(9143)
| | |-{httpd}(9144)
| | `-{httpd}(9145)
| `-httpd(12594)-+-{httpd}(12596)
| |-{httpd}(12597)
| |-{httpd}(12598)
| |-{httpd}(12599)
| |-{httpd}(12600)
| `-{httpd}(12601)
If you see pstree command it shows many process id under https. But if I run ps command its not listing all the process id for httpd.

Quote:
[root@server public_html]# ps auwx | grep http | grep -v grep
apache 9134 0.0 1.3 46544 10060 ? S 16:36 0:00 /usr/local/apache/bin/httpd -k restart
apache 9136 0.0 6.1 149656 47728 ? Sl 16:36 0:01 /usr/local/apache/bin/httpd -k restart
apache 12594 0.0 2.0 114180 16040 ? Sl 19:51 0:00 /usr/local/apache/bin/httpd -k restart
root 17888 0.0 1.7 46676 13256 ? Ss Mar22 0:05 /usr/local/apache/bin/httpd -k restart
It is just listing the PPID and immediate child process id only. I want to have all child process id.

Why pstree and ps command output is different.

Can someone point me in the right direction so that I can get all the child process id using other command rather than using pstree command.

Thank you


---------- Post updated at 09:08 PM ---------- Previous update was at 09:08 PM ----------

I have managed to write one line script to get the list all process id of HTTPD including PPID TGID and PID

Quote:
for i in `ps auwx | grep http | grep -v grep | awk {'print $2'}`; do ls -1 /proc/$i/task ; done
 

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LEARN ABOUT OPENSOLARIS

apache

apache(1M)						  System Administration Commands						apache(1M)

NAME

       apache - Apache hypertext transfer protocol server overview

DESCRIPTION

       apache  consists  of  a main server daemon, loadable server modules, some additional support utilities, configuration files, and documenta-
       tion.

FILES

       The apache HTTPD server is integrated with Solaris.

       The following files specify the installation locations for apache:

       /etc/apache	      Contains server configuration files.

			      A newly-installed server must be manually configured before use. Typically this involves copying	httpd.conf-example
			      to the httpd.conf file and making local configuration adjustments.

       /usr/apache/bin	      Contains the httpd executable as well as other utility programs.

       /usr/apache/htdocs     Contains the Apache manual in HTML format. This documentation is accessible by way of a link on the server test page
			      that gets installed upon fresh installation.

       /usr/apache/include    Contains the Apache header files, which are needed for building various optional server extensions with apxs(8)

       /usr/apache/jserv      Contains documention for the mod_jserv java servlet module. Documention can be read with a  web  browser	using  the
			      url:

				file:/usr/apache/jserv/docs/index.html

       /usr/apache/libexec    Contains	loadable modules (DSOs) supplied with the server. Any modules which are added using apxs(8)are also copied
			      into this directory.

       /usr/apache/man	      Contains man pages for the server, utility programs, and mod_perl.

			      Add this directory to your MANPATH to read the Apache man pages. See NOTES.

       /usr/apache/perl5      Contains the modules and library files used by the mod_perl extension to Apache.

       /var/apache/cgi-bin    Default location for the CGI scripts.

			      This can be changed by altering the httpd.conf file and restarting the server.

       /var/apache/htdocs     Default document root.

			      This can be changed by altering the httpd.conf file and restarting the server.

       /var/apache/icons      Icons used by the server.

			      This normally shouldn't need to be changed.

       /var/apache/logs       Contains server log files.

			      The formats, names, and locations of the files in this directory can be altered by various configuration	directives
			      in the httpd.conf file.

       /var/apache/proxy      Directory used to cache pages if the caching feature of mod_proxy is enabled in the httpd.conf file.

			      The location of the cache can also be changed by changing the proxy configuration in the httpd.conf file.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWapchr 		   |
       +-----------------------------+-----------------------------+
       |			     |SUNWapchu 		   |
       +-----------------------------+-----------------------------+
       |			     |SUNWapchd 		   |
       +-----------------------------+-----------------------------+

SEE ALSO

       attributes(5)

       http://www.apache.org

NOTES

       In addition to the documentation and man pages included with Solaris, more information is available at http://www.apache.org

       The  Apache  man pages are provided with the programming modules. To view the manual pages for the Apache modules with the man command, add
       /usr/apache/man to the MANPATH environment variable. See man(1) for more information. Running catman(1M) on the Apache manual pages is  not
       supported.

SunOS 5.11							    8 Aug 2000								apache(1M)
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