Difference between revisions of "Script Course"
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| Line 17: | Line 17: | ||
[ -e /etc/passwd ] | [ -e /etc/passwd ] | ||
-e True if file exists | -e True if file exists | ||
'''$?''' Contains the return code of the previously executed command | |||
=[[Bash| Bash menu]]-[[Main_Page| Home]]= | =[[Bash| Bash menu]]-[[Main_Page| Home]]= | ||
Revision as of 00:37, 13 March 2019
File Operators Tests
- -d File True if file is a directory
- -e File True if file exists
- -f File True if file exists and is a regular file
- -r File True if file is readable by you
- -s File True if file exist and is not empty
- -w File True if the file is writable by you
- -x File True if the file is executable by you
- -z String True if string is empty
- -n String true if string is not empty
Syntax
[condition to test for]
Example
[ -e /etc/passwd ] -e True if file exists
$? Contains the return code of the previously executed command