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79 lines
3.1 KiB
Markdown
79 lines
3.1 KiB
Markdown
# help
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Use `help` for more information on a command.
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Use `help commands` to list all available commands.
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Use `help <command name>` to display help about a particular command.
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## Examples
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```shell
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> help
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Welcome to Nushell.
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Here are some tips to help you get started.
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* help commands - list all available commands
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* help <command name> - display help about a particular command
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Nushell works on the idea of a "pipeline". Pipelines are commands connected with the '|' character.
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Each stage in the pipeline works together to load, parse, and display information to you.
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[Examples]
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List the files in the current directory, sorted by size:
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ls | sort-by size
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Get information about the current system:
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sys | get host
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Get the processes on your system actively using CPU:
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ps | where cpu > 0
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You can also learn more at https://www.nushell.sh/book/
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```
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```shell
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> help commands
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────┬──────────────┬─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
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# │ name │ description
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────┼──────────────┼─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
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0 │ alias │ Define a shortcut for another command.
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1 │ append │ Append the given row to the table
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2 │ autoview │ View the contents of the pipeline as a table or list.
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3 │ build-string │ Builds a string from the arguments
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4 │ cal │ Display a calendar.
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5 │ calc │ Parse a math expression into a number
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...
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83 │ where │ Filter table to match the condition.
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84 │ which │ Finds a program file.
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85 │ with-env │ Runs a block with an environment set. Eg) with-env [NAME 'foo'] { echo $nu.env.NAME }
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86 │ wrap │ Wraps the given data in a table.
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────┴──────────────┴─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
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```
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```shell
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> help cd
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Change to a new path.
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Usage:
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> cd (directory) {flags}
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Parameters:
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(directory) the directory to change to
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Flags:
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-h, --help: Display this help message
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Examples:
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Change to a new directory called 'dirname'
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> cd dirname
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Change to your home directory
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> cd
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Change to your home directory (alternate version)
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> cd ~
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Change to the previous directory
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> cd -
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```
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