Sponsored Content
Top Forums Shell Programming and Scripting help needed to understand the process entry in ps -ef Post 302262321 by demwz on Thursday 27th of November 2008 02:29:59 AM
Old 11-27-2008
It is very comon that shell scripts are executing subshells. this hppen f.eg. every time u use a | or a () statement. also some loop constructs are running in a subshell.
U can determine the parent in the 2. culoumn of the ps command.
 

9 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

Runaway process. Opinions needed

not too long ago, i wrote a very short script that will bring up 4 customized xterms. The script went completely abnormal simply because of an error I had made in a while loop. This script took control of the system and rendered everything useless. The system admin team which i was part of... (4 Replies)
Discussion started by: TRUEST
4 Replies

2. UNIX for Advanced & Expert Users

process automation ...help needed

hi all i am working in a organisation where we are using Ab Initio tool for datawarehousing purpose.Ab initio is installed on a unix environment.after developing the code we migrate it to production using certain commands which gets executed in the unix box.there are specific number of predefined... (6 Replies)
Discussion started by: dr46014
6 Replies

3. Shell Programming and Scripting

perl - understand process status and continue the code execution

Hello, I need advice on how to check if started processes are finished in perl, here's explanation : OS is RHEL 4, perl -v = "This is perl, v5.8.0 built for i386-linux-thread-multi" The logic of the script : #!/usr/bin/perl use warnings; $param1 = $ARGV; $param2 = $ARGV; $param3 =... (2 Replies)
Discussion started by: sysgate
2 Replies

4. UNIX for Advanced & Expert Users

to understand stopped process in top

Hi, top process is shows like this in solaris server oracle 8i running: load averages: 5.01, 3.35, 2.82 18:24:45 344 processes: 332 sleeping, 5 running, 2 stopped, 5 on cpu CPU states: 22.2% idle, 29.6% user, 14.7% kernel, 33.5% iowait, 0.0% swap... (3 Replies)
Discussion started by: prakash.gr
3 Replies

5. Shell Programming and Scripting

Help needed in killing a process

I'm trying to kill a process which is in sleep mode and the parent PID is 1 but I can't kill it with "kill -9" command. Is there a way to kill this process without rebooting? Any help will be appreciated. Steve (10 Replies)
Discussion started by: stevefox
10 Replies

6. UNIX for Dummies Questions & Answers

Help needed to understand partitions in linux

Hi guys, It has been more than 2 month i switched to linux but i m still very much confused how linux handles and names the partitions. I have gone through couple of beginners material and found linux doesnt treat partitions as c: and d: instead it uses /dev/hda1 /dev/hda2 hda3 .But now i... (7 Replies)
Discussion started by: pinga123
7 Replies

7. Shell Programming and Scripting

Idea needed regarding process related script

I want to write a script which will take two time as input parameters and display the details of running processes between the two times, any ideas about the script ? (6 Replies)
Discussion started by: sandip250382
6 Replies

8. Solaris

Trying to understand the boot process

I understand the OBP program looks for the boot-device, loads the bootblk (located on physical disk sectors 1 through 15). Then the secondary boot program, /platform/`arch -k`/ufsboot is run. This program loads the kernel core image files (genunix and unix). So how does it uses the ufsboot and... (1 Reply)
Discussion started by: MR.bean
1 Replies

9. Shell Programming and Scripting

Process to read a new file entry and execute a command

I need to develop a process/daemon which will constantly monitor a file for new entry and execute a command. for eg, there is a file /var/log/inotify.log When a new entry like below gets appeneded to this file, execute the command as follows. /home/user/public_html/bad.php|CREATE ... (2 Replies)
Discussion started by: anil510
2 Replies
ATF-SH(1)						    BSD General Commands Manual 						 ATF-SH(1)

NAME
atf-sh [-s shell] -- interpreter for shell-based test programs SYNOPSIS
atf-sh script DESCRIPTION
atf-sh is an interpreter that runs the test program given in script after loading the atf-sh(3) library. atf-sh is not a real interpreter though: it is just a wrapper around the system-wide shell defined by ATF_SHELL. atf-sh executes the inter- preter, loads the atf-sh(3) library and then runs the script. You must consider atf-sh to be a POSIX shell by default and thus should not use any non-standard extensions. The following options are available: -s shell Specifies the shell to use instead of the value provided by ATF_SHELL. ENVIRONMENT
ATF_LIBEXECDIR Overrides the builtin directory where atf-sh is located. Should not be overridden other than for testing purposes. ATF_PKGDATADIR Overrides the builtin directory where libatf-sh.subr is located. Should not be overridden other than for testing purposes. ATF_SHELL Path to the system shell to be used in the generated scripts. Scripts must not rely on this variable being set to select a specific interpreter. EXAMPLES
Scripts using atf-sh(3) should start with: #! /usr/bin/env atf-sh Alternatively, if you want to explicitly choose a shell interpreter, you cannot rely on env(1) to find atf-sh. Instead, you have to hardcode the path to atf-sh in the script and then use the -s option afterwards as a single parameter: #! /path/to/bin/atf-sh -s/bin/bash ENVIRONMENT
ATF_SHELL Path to the system shell to be used in the generated scripts. SEE ALSO
atf-sh(3) BSD
September 27, 2014 BSD
All times are GMT -4. The time now is 12:52 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy