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Thanks for your reply. but still i am having some doubts

i went through some of the websites. its quoted that "use $? very rarely".

is it a good practice to use this? (pradon me if i am wrong i...

hi,

i am one day old in shell scritpting. how to invoke one shell script from the other?
For eg.i have two shell scripts A.sh and B.sh. Inside A.sh i need to invoke B.sh and the return code of...