SC3006.md

Pattern: Use of undefined ((..))

Issue: -

Description

In POSIX sh, standalone ((..)) is undefined.

Example of incorrect code:

variable=1
if ((variable)); then
  echo variable is not zero
fi

Example of correct code:

variable=1
if [ "${variable}" -ne 0 ]; then
  echo variable is not zero
fi

Further Reading

• ShellCheck - SC3006