I have an app that's essentially an interactive shell, and i'd like to:
- set some things in my perl script
- invoke the shell application
- issue one or two specific commands to the app
- pass control of the shell app to the user
- when shell terminates, resume control from the script
Now, i can simply invoke and pass control by using system(), got that advice from the helpful folks in the chatterbox (thanks again guys):
system("./SHELL");
print "by the time you see this, you'll have exited the shell";
but i need to enter specific commands INTO the shell before the user can enter anything themselves...this may take an OS-dependant trick, but thats ok because im only using this on the one specific OS (debian 3.1).
i figured it needs to be something along the lines of the following, but these dont quite work:
#invokes SHELL, then waits until termination of console
#to call CMD...not what i need
system("./SHELL\nCMD\n");
#invokes the SHELL, enters command into SHELL,
#then terminates SHELL before user can do anything
system("./SHELL<<EOC\nCMD\nEOC\n");
perhaps i need to somehow drop commands into the terminal's input buffer before i invoke the app? i wouldnt even know where to begin to do that though.
__________
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- Terry Pratchett
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