catch)Handles the exception code raised by
tryortrypipe
catch is designed to be used in conjunction with
try and trypipe as it handles the exceptions
raised by the aforementioned.
[ try | trypipe ] { code-block } -> <stdout>
catch { code-block } -> <stdout>
!catch { code-block } -> <stdout>try {
out "Hello, World!" -> grep: "non-existent string"
out "This command will be ignored"
}
catch {
out "An error was caught"
}
!catch {
out "No errors were raised"
}catch can be used with a bang prefix to check for a lack
of errors.
catch forwards on the stdin and exit number of the
calling function.
catch!catchunsafe): Execute a block of code, always returning a
zero exit numberrunmode): Alter the scheduler’s behaviour at higher
scoping levelif):
Conditional statement to execute different blocks of code depending on
the result of the conditiontrypipe): Checks for non-zero exits of each function
in a pipelinetrypipeerr): Checks state of each function in a
pipeline and exits block on errortryerr): Handles errors inside a block of codeswitch): Blocks of cascading conditionalstry):
Handles non-zero exits inside a block of codeThis document was generated from builtins/core/structs/try_doc.yaml.
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