(Not exactly a Perl question, but often puzzles unix/linux newbies.)

Two things here. The first one:

how to make a program run as soon as linux is being started

... is usually beeing accomplished by putting the program invocation into the appropriate startup file, most probably (you mentioned "Linux" which one?) the file etc/init.d/boot.local, like mine:

$> cat /etc/init.d/boot.local
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starts the cpu temperature sensors package:

#! /bin/sh
modprobe w83627hf
sleep 1 # optional
/usr/bin/sensors -s
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the other question was:

how to make my program run atomatically as as soon as somebody log into the linux system

Same thing here, put the command into the appropriate file, for bash login shell, this might be the file ~/.bashrc in your home directory.

For example, you have a program called 'anonymoushydrogen.pl' in your home directory, which contains the following code:

#!/usr/bin/perl
print "Hello anonymoushydrogen!\n";
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then, you may put the command:

into your .bashrc and all is fine.

But: the exact name of the file may depend on your shell or login configuration (.bashrc, .profile, .bash_profile etc.).

Regards

mwa

If you just wanted to display something then "message of the day" aka /etc/motd will do what you want. The contents of /etc/motd are displayed by login(1) after a successful login but just before it executes the login shell.

If you want to execute a program when the system starts there are multiple methods and it depends on the system. On linux just add a line to /etc/rc.local and it will get executed at the end of the startup sequence. One win32 see this for the registry run keys and the startup folder hacks.

To execute something when a user logs on in linux just stick a line in /etc/profile for a global effect or any of ~/.bash_profile ~/bash_login ~/.profile for a per user effect. On win32 it really depends on your setup. See this drag and drool example. For more examples try Google. "linux logon script" "windows logon script" should work well.

i want to run it as soon as the user log in the window or linux operating systems

All,

Please post replies on Reaped: how to make a run a orogram as sooon as linux is being started. This appears to be a duplicate. Other one is formatted better :)

Update: Or not. Looks like the linked post was reaped.

i want to run it as soon as the user log in the window or linux operating systems?