Matthew Woehlke <[EMAIL PROTECTED]> wrote: > Stephane Chazelas wrote: >> [ -n "$foo" -a -n "$bar" ] >> is not the expression to test whether both "$foo" and "$bar" are >> non-empty, as it would fail for some specific values of $foo or >> $bar (try it when $foo contains "=" for instance). > > Huh? Why would having an '=' in foo have any effect?
I think Stephane meant the exact string "=", not any string containing "=". > "$foo" is still a string, it should not be subject to word splitting Right, but it is special to the test/[ command. $ [ -n = -a -n z ] bash: [: too many arguments Here, "=" is interpreted as a binary operator, not as the operand of "-n". paul _______________________________________________ Bug-bash mailing list Bug-bash@gnu.org http://lists.gnu.org/mailman/listinfo/bug-bash
