fish

fish is a command-line shell written mainly with interactive use in mind. The full manual is available in HTML by using the help command from inside fish.

The following options are available:

• -c or --command=COMMANDS evaluate the specified commands instead of reading from the commandline
• -d or --debug-level=DEBUG_LEVEL specify the verbosity level of fish. A higher number means higher verbosity. The default level is 1.
• -i or --interactive specify that fish is to run in interactive mode
• -l or --login specify that fish is to run as a login shell
• -n or --no-execute do not execute any commands, only perform syntax checking
• -p or --profile=PROFILE_FILE when fish exits, output timing information on all executed commands to the specified file
• -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.