On 10 Dec 2010, at 14:15, Braun Brelin wrote:
> Does anyone know the reason why I have to quote strings when testing them
> like so?
>> if [ -n "$s1" ]; then
> echo blah
>> i.e. why the "$s1" in the test expression? Anyone know the answer?
You don't "have" to do it, but if you don't, you'll get an error when $1 isn't set because
if [ -n ] ; then
is syntactically incorrect
if [ -n "" ]; then
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