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-c or --command=COMMANDS evaluate the specified commands instead of reading from the commandline

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-d or --debug-level=DEBUG_LEVEL specify the verbosity level of fish. A higher number means higher verbosity. The default level is 1.

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-h or --help display help and exit

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-i or --interactive specify that fish is to run in interactive mode

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-l or --login specify that fish is to run as a login shell

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-n or --no-execute do not execute any commands, only perform syntax checking

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-p or --profile=PROFILE_FILE when fish exits, output timing information on all executed commands to the specified file

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-v or --version display version and exit

The fish exit status is generally the exit status of the last foreground command. If fish is exiting because of a parse error, the exit status is 127.