shell_cmd

Description:

shell cmd

A library for running programs either explicitly or in an OS-specific shell
Features #


Instance method parse to break single string into an executable and its arguments. This was done due to the current state of splitShell of the package io is not usable, as it is hardwired to POSIX conventions: escape character is always \, line comment start is always #, strings like ab|cd and ab>cd are not split in three, etc. The flag runInShell indicates whether the command should be run in shell (having special characters) or not.


Instance wrapper methods run and runSync (for Process.run and Process.runSync respectively) accept the first parameter as
the full command in a single string. The package guarantees that when the parameter runInShell is true, the excution result will be exactly the same as if that command would be run as a script. If this parameter is omitted, the member runInShell will be used. The shell is not required to be sh (POSIX) or cmd.exe (Windows). First of all, the API tries to get that from the environment variable SHELL (POSIX) or COMSPEC (Windows), then falls back onto the ones noted before. It is possible to set the shell to anything else explicitly via setShell.


Methods which and whichSync to expand filename into full path if found in PATH. Under Windows, it will also try to append every extension from PATHEXT.


Usage #
See under the Example tab. All sample code files are under the sub-directory example.