Linux Export command

bsrivatsav · #1 (**permalink**) 10-30-2008

Hi All,

Can anybody tell me . What does it mean by following statement

export $$

Generally export command sets up the environment variable and if any
child process is created it passes on to it

Thanks & Regards
Srivatsav

sysgate · #2 (**permalink**) 10-30-2008

"echo $$" will display the pid of bash shell, e.g. :

Code:

[sysgate@host:~] $ echo $$
24786
[sysgate@host:~] $ ps -ef | grep 24786
1000     24786 17028  0 16:20 pts/2    00:00:00 /bin/bash

jim mcnamara · #3 (**permalink**) 10-30-2008

What sysgate is telling you - it will not work to export the current pid. Children will have the $$ defined during creation (exec) of the new process, so it will be written over, anyway. Plus that command generates a syntax error in bash.

More UNIX and Linux Forum Topics You Might Find Helpful
Thread	Thread Starter	Forum	Replies	Last Post
Linux > Export (exp) command	ora_umair	Linux	2	10-27-2008 10:36 AM
ExporT Command Not found	networking	UNIX for Dummies Questions & Answers	1	06-20-2008 03:22 PM
Export command	prakash.kudreka	UNIX for Advanced & Expert Users	3	11-20-2007 08:37 AM
export command	radhika03	UNIX for Dummies Questions & Answers	2	12-16-2005 09:25 AM
using export command	sveera	Shell Programming and Scripting	4	04-01-2005 11:05 AM

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search
Display Modes	Rate This Thread
Switch to Linear Mode Hybrid Mode Switch to Threaded Mode	Rate This Thread:


	Powered by