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Language Reference Function Reference Including Source Files Comments Issuing Shell Commands Matrix Multiplication Information About Variables Elementary Functions Advanced Array Indexing Index Range Functions Logical Functions Interpolation and Lookup Functions Sorting Transposing Manipulating Strings Generating Simple Meshes Using Pointers Instancing Data Structures Reshaping Arrays I/O Reference | # Yorick Function Reference ## Issuing Shell Commands You can execute a system command, returning to Yorick when the command completes, by prefixing the command line with `$`: `$`any shell command line This is a shorthand for the `system` function: `system, shell_string` pass shell_string to a system shell You need to use the `system` function if you want to compute the shell_string; otherwise `$` is more convenient. Note that the cd (change directory) shell command and its relatives will not have any effect on Yorick's working directory. Instead, use Yorick's `cd` function to change it's working directory:
`cd, path_name` | change Yorick's default directory
`get_cwd()` | return Yorick's current working directory
The following functions also relate to the operating system:
`get_home()` | return your home directory
`get_env(env_string)` | return environment variable env_string
`get_argv()` | return the command line arguments