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Thanks a lot Yogesh

Whats the purpose of this if?
if [[ -z "$1" ]];

thanks in advance

Thanx a lot porter...
Problem solved.

how can we identify which child shell being created by the sh command.
Is it necessary that the child shell created will be the same as parent shell or it may be different.
How can we change this...

thanks for the prompt response...
But i don't think changing the permissions will solve the problem coz script is running without the prefix but it is giving error that its not recognising the...

Hi
I am getting some errors when i am running the shell script using the following syntax:
>abc.sh

but the same script works fine with the following syntax:
>sh abc.sh

wats the difference in...