Difference between revisions of "Bash:Test"

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(Created page with "The test command evaluates an expression and sets $? 0 => True/Successful 1 => False/Unsuccessful In if statement test can be executed as [ expression ]. This has better read...")
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Revision as of 17:39, 8 March 2019

The test command evaluates an expression and sets $? 0 => True/Successful 1 => False/Unsuccessful

In if statement test can be executed as [ expression ]. This has better readability.

Test commands

-f filename
Regular file existence
-e filename
Any file existence
-s filename
File is bigger than 0 bytes