Stats

  • Locked Locked
  • Replies 2
  • Subscribers 143
  • Views 4556
  • Members are here 0
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

how to run system("...") command on a user input file?

DaveDesigner

I want to create a simple skill script which pops up a form and asks the user for an input file.

The skill file will run a system command on this file. Such as system("grep -i subckt userinputfile")

The problem I am having is that the system command does not accept variables. I know how to write all of the user interface and forms, I am just stuck on how to run the system command on a user input file without forcing the user to name the input file something unique.

 Thank you!

Parents
  • skillUser

    Hi Dave,

    The answer is to use the sprintf command to create the command string to be executed by system, and this is how you can insert variables into the string. For example, you might do something like this:

    sprintf(cmd "grep -i subckt %s" userinputfile)
system(cmd)

    Also you can use commands like ipcBeginProcess to be able to capture the results and return values of externally run processes.

    Hopefully this answers your question.

    Regards,

    Lawrence.

Reply
  • skillUser

    Hi Dave,

    The answer is to use the sprintf command to create the command string to be executed by system, and this is how you can insert variables into the string. For example, you might do something like this:

    sprintf(cmd "grep -i subckt %s" userinputfile)
system(cmd)

    Also you can use commands like ipcBeginProcess to be able to capture the results and return values of externally run processes.

    Hopefully this answers your question.

    Regards,

    Lawrence.

Children
No Data

Community Guidelines

The Cadence Design Communities support Cadence users and technologists interacting to exchange ideas, news, technical information, and best practices to solve problems and get the most from Cadence technology. The community is open to everyone, and to provide the most value, we require participants to follow our Community Guidelines that facilitate a quality exchange of ideas and information. By accessing, contributing, using or downloading any materials from the site, you agree to be bound by the full Community Guidelines.