shell (bash) non-empty string test works without -n about google-styleguide

[GoogleCodeExporter]

Indeed, the comment is likely incorrect. For the standard single-bracket test 
("["), POSIX.1-2008 specifies the following behavior, which precludes a single 
argument being interpreted as a test flag:

    In the following list, $1, $2, $3, and $4 represent the arguments presented to test:
    ...
    1 argument:
        Exit true (0) if $1 is not null; otherwise, exit false.

bash's "[[" appears to behave the same way (even when ${my_var} is not quoted, 
as field splitting and pathname expansion are not performed inside [[ ]]).

Original comment by [email protected] on 15 May 2014 at 3:47