2 SC1137

Joachim Ansorg edited this page 2022-10-31 19:47:26 +01:00

Table of Contents

• Missing second ( to start arithmetic for ((;;)) loop
• Problematic code:
• Correct code:
• Rationale:
• Exceptions:
• Related resources:

Missing second ( to start arithmetic for ((;;)) loop

Problematic code:

for (i=0; i<10; i++))
do
  echo $i
done

Correct code:

for ((i=0; i<10; i++))
do
  echo $i
done

Rationale:

ShellCheck found an arithmetic for ((;;)) expression where either the (( or the )) did not come as a pair. Make sure to use (( )) and not ( ).

Exceptions:

None.

Related resources:

• Help by adding links to BashFAQ, StackOverflow, man pages, POSIX, etc!

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