Thanks for all the Comments!

First, the chomping did its part, now my program at least works with each serial i put in the text file instead of just the first.

Second, using system instead of exec, well i started with system, then read that it didn't return from execution (or at least i thought i read it) and then turned to exec. Seemingly, i was wrong :)

Third, i tried the -F -f option with grep, but this did not achieve my goal.

My new problem is this: when i execute the program, the output looks like: 
Now Processing #1
.log: No such file or directory
Now Processing #2
.log: No such file or directory
Now Processing #3
.log: No such file or directory

[download]
and so on. The rogue line is this one (clearly): 
system("echo grep $serial logs* > $serial.log")

[download]
This line used to work when i used exec, but with system it doesn't. Any hints on how to solve this problem?

And by the way: the speed you guys show is amazing :) I never expected so much as simple replies until tomorrow, but you came up with real solutions almost instantly. Respect!

greetings, Elbarto

In reply to Re: System Call for various serials in a for loop by Elbarto
in thread System Call for various serials in a for loop by Elbarto

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