Installs the packages in packages_string. Returns 0 on success or non-zero error code. (-1 is an unknown OS)
Example:
# Example for install (not available, internal use only)
Is package package_name installed?
Example:
# Example for is_installed
println is_installed("curl") # true/false
Attempts to take the required action on service service_name. Returns true if successful.
Removes the packages in packages_string. Returns 0 on success or non-zero error code. (-1 is an unknown OS)
Example:
# Example for uninstall
uninstall("mypkg")
Returns -1, 0, or +1 depending on semantic version string string_v1 being less than,
[#SOL]equal to, or greater than version string string_v2.
Example:
# Example for vcmp
println vcmp("1.0.0","1.1.0") # -1