Hello All

,
I am a newbie in shell scripting and Linux.
Here's a problem I'm facing since last few days. Please tell me some logical reason behind this.
Thanks in advance.
To run my script I need to define some environment variables and need to run a TODO file.
In the first go everythings seems to run perfectly alright.
But after some time (generally after 1 day) the same code generates errors, like .lib file is missing, or .tech file is not configured properly or anything bla bla like that. Even if redefine the variables, start the whole process again, the error remains same. And the same error disappears if I run it from new terminal, like it was not there at all. I don't find any logical reason for that.
I dont think this is some problem related to the session of that perticular terminal because the time I mensioned here (1 day) is not same all the time. Some times its 1 day or it may be 2 days, 5 days, anything.
I am using RedHat, and my scripts are mainly written in perl.
Thanks you,
- MD