Login or Register to Ask a Question and Join Our Community


Solaris

Process ID's

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Operating Systems Solaris Process ID's
# 8  
Old 08-15-2010
your code

in bash
Code:
[root@rhnserver a]# ./code
hello world from process ID 24361
[root@rhnserver a]# ./code
hello world from process ID 24362
[root@rhnserver a]# ./code
hello world from process ID 24363
[root@rhnserver a]# ./code
hello world from process ID 24364
[root@rhnserver a]# ./code
hello world from process ID 24365

in ksh
Code:
$ ./code
hello world from process ID 24391
$ ./code
hello world from process ID 24392
$ ./code
hello world from process ID 24393
$ ./code
hello world from process ID 24394
$ ./code
hello world from process ID 24395
$ ./code
hello world from process ID 24396
$ ./code
hello world from process ID 24397

ksh93
Code:
hello world from process ID 24449
$ ./code
hello world from process ID 24450
$ ./code
hello world from process ID 24451
$ ./code
hello world from process ID 24452
$ ./code
hello world from process ID 24453
$ ./code
hello world from process ID 24454

Solaris
in bash

Code:
hello world from process ID 4036
unknown/# ./code
hello world from process ID 4037
unknown/# ./code
hello world from process ID 4038
unknown/# ./code
hello world from process ID 4039
unknown/# ./code
hello world from process ID 4040
unknown/# ./code
hello world from process ID 4041
unknown/# ./code
hello world from process ID 4042

Solaris
in ksh

Code:
 
$ ./code
hello world from process ID 4104
$ ./code
hello world from process ID 4105
$ ./code
hello world from process ID 4106
$ ./code
hello world from process ID 4107

i guess when you run code in a script parent shell assign another pid to script with your code
# 9  
Old 08-15-2010
Quote:
Originally Posted by agama
Afraid not. The #! directive in the script being executed has nothing to do with it. It is the parent shell, the shell that is doing the fork()/exec() on the command (script in this case), that is affecting the environment such that PID values appear to be skipping. The only important thing about what is being executed is that it terminates quickly and writes its PID to stdout/stderr.
Perhaps what you are describing is partially Gnu/Linux specific.
The interpreter directive has definitely the effect I was suspected under Solaris:
Code:
$ cat t16
echo $$
exit
$ cat t17
#!/bin/ksh
echo $$
exit
$ ksh -c "t16;t16;t16;t16"
11466
11468
11470
11464
$ bash -c "t16;t16;t16;t16"
11474
11475
11476
11477
$ ksh -c "t17;t17;t17;t17"
11480
11481
11482
11479
$ bash -c "t17;t17;t17;t17"
11485
11486
11487
11488
$ uname -a
SunOS m10 5.11 snv_134 i86pc i386 i86pc
$ bash --version
GNU bash, version 4.0.28(1)-release (i386-pc-solaris2.11)
Copyright (C) 2009 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>

This is free software; you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
$ ksh --version
  version         sh (AT&T Research) 93t+ 2009-10-12

This User Gave Thanks to jlliagre For This Post:
agama
# 10  
Old 08-16-2010
Quote:
Originally Posted by jlliagre
Perhaps what you are describing is partially Gnu/Linux specific.
The interpreter directive has definitely the effect I was suspected under Solaris:
Looking at the version of Kshell that you are running I noticed that my version is older, both on my Linux and FreeBSD boxes. Trying the test again with the latest Kshell (6/2010) I was able to indeed duplicate your results. I haven't peeked at the Kshell source, or run an strace, but I'm guessing that somewhere between the version I was running and the 2009-10-12 version, Kshell started looking at the target command file skipping the vfork() call in the case that it found a #! directive.

Thanks.
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Command to get exact tomcat process I am running ignoring other java process

Team, I have multiple batchjobs running in VM, if I do ps -ef |grep java or tomcat I am getting multiple process list. How do I get my exact tomcat process running and that is unique? via shell script? (4 Replies)
Discussion started by: Ghanshyam Ratho
4 Replies

2. Shell Programming and Scripting

Monitoring processes in parallel and process log file after process exits

I am writing a script to kick off a process to gather logs on multiple nodes in parallel using "&". These processes create individual log files. Which I would like to filter and convert in CSV format after they are complete. I am facing following issues: 1. Monitor all Processes parallelly.... (5 Replies)
Discussion started by: shunya
5 Replies

3. UNIX for Advanced & Expert Users

Process remians in Running state causing other similar process to sleep and results to system hang

Hi Experts, I am facing one problem here which is one process always stuck in running state which causes the other similar process to sleep state . This causes my system in hanged state. On doing cat /proc/<pid>wchan showing the "__init_begin" in the output. Can you please help me here... (6 Replies)
Discussion started by: naveeng
6 Replies

4. UNIX for Advanced & Expert Users

Process remians in Running state causing other similar process to sleep and results to system hang

Hi Experts, I am facing one problem here which is one process always stuck in running state which causes the other similar process to sleep state . This causes my system in hanged state. On doing cat /proc/<pid>wchan showing the "__init_begin" in the output. Can you please help me here... (1 Reply)
Discussion started by: naveeng
1 Replies

5. BSD

Process remians in Running state causing other similar process to sleep and results to system hang

Hi Experts, I am facing one problem here which is one process always stuck in running state which causes the other similar process to sleep state . This causes my system in hanged state. On doing cat /proc/<pid>wchan showing the "__init_begin" in the output. Can you please help me here... (0 Replies)
Discussion started by: naveeng
0 Replies

6. Shell Programming and Scripting

script to monitor the process system when a process from user takes longer than 15 min run.

get email notification from from system when a process from XXXX user takes longer than 15 min run.Let me know the time estimation for the same. hi ,any one please tell me , how to write a script to get email notification from system when a process from as mentioned above a xxxx user takes... (1 Reply)
Discussion started by: kirankrishna3
1 Replies

7. Shell Programming and Scripting

[KSH/Bash] Starting a parent process from a child process?

Hey all, I need to launch a script from within 2 other scripts that can run independently of the two parent scripts... Im having a hard time doing this, if anyone knows how please let me know. More detail. ScriptA (bash), ScriptB (ksh), ScriptC (bash) ScriptA, launches ScriptB ScirptB,... (7 Replies)
Discussion started by: trey85stang
7 Replies

8. Shell Programming and Scripting

Shell Script to Kill Process(number of process) Unix/Solaris

Hi Experts, we do have a shell script for Unix Solaris, which will kill all the process manullay, it used to work in my previous env, but now it is throwing this error.. could some one please help me to resolve it This is how we execute the script (and this is the requirement) ... (2 Replies)
Discussion started by: jonnyvic
2 Replies

9. Shell Programming and Scripting

script to monitor process running on server and posting a mail if any process is dead

Hello all, I would be happy if any one could help me with a shell script that would determine all the processes running on a Unix server and post a mail if any of the process is not running or aborted. Thanks in advance Regards, pradeep kulkarni. :mad: (13 Replies)
Discussion started by: pradeepmacha
13 Replies

10. Shell Programming and Scripting

Script - How to automatically start another process when the previous process ends?

Hi all, I'm doing automation task for my team and I just started to learn unix scripting so please shed some light on how to do this: 1) I have 2 sets of datafiles - datafile A and B. These datafiles must be loaded subsequently and cannot be loaded concurrently. 2) So I loaded datafile A... (10 Replies)
Discussion started by: luna_soleil
10 Replies
Login or Register to Ask a Question