shell scripts ...--can it be called with in a c program
 

mates ia hav a problem
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-- can i call a shell script from a c program ?

sure you can, there is a function called system(). Searh for it.
you could probably do this system("sh shellscript.sh");
what system does is execute the command as your terminal.

Certainly you can as described above with "system" call !
Be aware that a separate task is opened from the OS with all overhead required, so this might work out for calls that are not performance critical !