From: Vincent Cunniffe (vincent at domain cunniffe.net)
Date: Wed 09 May 2001 - 09:39:31 IST
hrishy samant wrote:
> could anybody explain me this shell script
> can anybody explain what this &&set_level 1 means
It's a logical AND statement, used as a trick to run a subsequent
command *only* if the first command returned a 'success' value.
The evaluation of the expression (X && Y) is false if either X *or* Y
are false, so Y will not even be evaluated if X is found false.
This is fairly commonly used, in commands such as :
make && make install
which will only run the second installation command if the compilation
stage is found to have worked.
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