how to run a command line command

[shawn bright]

lo there all
i have an app that i want to launch an application from.
i use linux with a bash shell. If i want to launch a program from my
terminal, i use
/myprogram
or /home/myuser/myprogram

how could i do something like this from a ruby script ?

thanks
sk

 

[Dale Martenson]

lo there all
i have an app that i want to launch an application from.
i use linux with a bash shell. If i want to launch a program from my
terminal, i use
/myprogram
or /home/myuser/myprogram

how could i do something like this from a ruby script ?

thanks
sk

There are a number of ways to accomplish this:

system( 'vim somefile' )

or

`vim somefile`

Note: those are back ticks by the way.

 

[nephish]

There are a number of ways to accomplish this:

system( 'vim somefile' )

or

`vim somefile`

Note: those are back ticks by the way.

cool enough, works great, thanks
sk

 

[Wang Dong]

also %x(vim somefile)

cool enough, works great, thanks
sk

 

[Chad Perrin]

also %x(vim somefile)

I wonder how that one escaped my attention. Thanks for mentioning it.

How does it work? Like ``, or system(), or . . . what?

 

[Suraj Kurapati]

There are a number of ways to accomplish this:

system( 'vim somefile' )

or

`vim somefile`

Note: those are back ticks by the way.

I avoid the latter unless I need the output generated by the command. By
doing so, I bypass a bunch of needless processing (capture command's
STDOUT to a newly allocated string buffer), or so I think. Does anyone
know for sure?