Signs and commands used in Fish functions

Hi everyone,

In the code ‘callbacks3.dat’ from the PFC tutorial ‘Using FISH Callbacks’ there are appearing some commands and signs as part of an if-function, which I couldn’t find using the search function, namely ‘#’ and ‘exit’?
Does anybody know what they’re meaning and were I can find a collection of these and similar commands?
Thank you all in advance!


Hi Nick!

You can find information here:

“Exit” command → Jumps to the end of the function:
Exit — PFC 7.0 documentation (

“#” sign → the “unequal” sign of fish:

Operators, Assignment, Conversions, and Member Access — PFC 7.0 documentation (

I hope this was of help.

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