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SC2161
Joachim Ansorg edited this page Nov 12, 2021
·
3 revisions
while [ 1 ]
do
echo "infinite loop"
done
while true
do
echo "infinite loop"
done
This is a stylistic suggestion to use true
instead of [ 1 ]
.
[ 1 ]
seems to suggest that the value "1" is somehow relevant to the statement. This is not the case: it doesn't matter. You can replace it with [ 0 ]
or [ wombat ]
, and it will still always be true.
If you instead use true
, the value is actually considered and can be inverted by replacing with false
.
On bash, you can also use (( 1 ))
, which evaluates to true much like in C. (( 0 ))
is similarly false.
None.