Log In

Come Join Us!

Are you a
Computer / IT professional?
Join Tek-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Tek-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here


Passing command-line arguments to Tcl

Passing command-line arguments to Tcl

Passing command-line arguments to Tcl

Is there any way to pass command-line arguments to a script?

For example, I am writing a parsing program and would like to specify the settings.
I don't want to delve into creating and reading values from checkbox, radio button, or text widgets, etc.
in Tk if I don't have to do it.

The simple solution to me would be to use the command-line. But, I don't know if Tcl allows you to
use the command-line. For example, I would call my parser to print all the procedures in a Tcl script:

RE: Passing command-line arguments to Tcl

The command line arguments are available inside a script
as global variables:

argv0 is the name of the script
argv is a list of the arguments
argc is the number of arguments
(equal to [llength $argv])

Hence the following script should print out the arguments:

# The next line runs tclsh, passing the \
# arguments of this shell script to it. \
exec tclsh "$0" "$@"

puts "Command line arguments: $argv ($argc)"

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Tek-Tips Forums free from inappropriate posts.
The Tek-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Tek-Tips forums is a member-only feature.

Click Here to join Tek-Tips and talk with other members!

Close Box

Join Tek-Tips® Today!

Join your peers on the Internet's largest technical computer professional community.
It's easy to join and it's free.

Here's Why Members Love Tek-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close