assert
Operator
assert — evaluate an assertion
Synopsis
assert <expr>
Description
The assert operator evaluates the Boolean expression <expr> for each
input value, yielding its input value if <expr> evaluates to true or a
structured error if it does not.
Examples
assert a > 0{a:1}Loading...echo '{a:1}' \
| super -z -c 'assert a > 0' -assert a > 0{a:-1}Loading...echo '{a:-1}' \
| super -z -c 'assert a > 0' -