02-22-2008
bash shell: 'exec', 'eval', 'source' - looking for help to understand
Hi, experts.
Whould anybody clear explay me difference and usage of these 3 commands (particulary in bash) :
exec
eval
source
I've tryed to read the manual pages but did not get much.
Also could not get something useful from Google search - just so much and so not exactly, that is is not usefull
Would it be any different result in environment after using any of these command?
Where and for what purpose each should be used?
How and is there any difference to use those from interactive shell or from script?
Greately appreciate your help
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