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What is the difference:
if IsServerStarted ; then ...
and
if [ IsServerStarted -eq 0 ] ; then ...
Seems to me that these two statements should be equivalent? Strangely the second statement is always true.
The following runs the shell function or executable in
$PATHnamedIsServerStarted, and if its exit code is0(i.e. true), runs thethenbranch. If such a function or executable does not exist, the exit code will be non-0(i.e. false) and thethenbranch will be skipped.The following has
[(akatest) check whetherIsServerStartedis an integer equal to0, which (IsServerStartednot even containing a single digit) is always false. Thus,[exits with a non-0(i.e. false) code and thethenbranch is always skipped.