$ curl cheat.sh/
# fish
# The Friendly Interactive SHell, a command-line interpreter designed to be user friendly.
# More information: <https://fishshell.com>.

# Start an interactive shell session:
fish

# Start an interactive shell session without loading startup configs:
fish --no-config

# Execute specific commands:
fish --command "echo 'fish is executed'"

# Execute a specific script:
fish path/to/script.fish

# Check a specific script for syntax errors:
fish --no-execute path/to/script.fish

# Execute specific commands from `stdin`:
echo "echo 'fish is executed'" | fish

# Start an interactive shell session in private mode, where the shell does not access old history or save new history:
fish --private

# Define and export an environmental variable that persists across shell restarts (builtin):
set --universal --export variable_name variable_value

$
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