try)Handles non-zero exits inside a block of code
try forces a different execution behavior where a failed
process at the end of a pipeline will cause the block to terminate
regardless of any functions that might follow.
It’s usage is similar to try blocks in other languages (eg Java) but
a closer functional example would be set -e in Bash.
To maintain concurrency within the pipeline, try will
only check the last function in any given pipeline (ie series of
functions joined via |, ->, or similar
operators). If you need the entire pipeline checked then use
trypipe.
try { code-block } -> <stdout>
<stdin> -> try { -> code-block } -> <stdout>try {
out "Hello, World!" -> grep: "non-existent string"
out "This command will be ignored"
}A failure is determined by:
You can see which run mode your functions are executing under via the
fid-list command.
catch): Handles the exception code raised by
try or trypipeunsafe): Execute a block of code, always returning a
zero exit numberfid-list): Lists all running functions within the
current Murex sessionrunmode): 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 conditionalsThis document was generated from builtins/core/structs/try_doc.yaml.
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Last built on Wed Jul 2 22:12:32 UTC 2025 against commit bb72b6fbb72b6fdd502f835172d7d06207ba4ec2c70886c.
Current version is 7.0.2107 (develop) which has been verified against tests cases.