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Top Forums Programming Signal out from fork()'d shell script back to the C++ application Post 302888135 by mirni on Wednesday 12th of February 2014 07:14:17 PM
Old 02-12-2014
Signal out from fork()'d shell script back to the C++ application

Hi,
I am writing a C++ application; in which at one point I fork() a new process, which executes a shell script (via execv() call).
Now the shell script can take a while to finish (tarring, burning a cd, etc.) and I would like to update the parent application about the progress (while the script is running).
Any ideas on how to do this?
Thank you!
Miro
 

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script(1)							   User Commands							 script(1)

NAME
script - make record of a terminal session SYNOPSIS
script [-a] [filename] DESCRIPTION
The script utility makes a record of everything printed on your screen. The record is written to filename. If no file name is given, the record is saved in the file typescript. See WARNINGS. The script command forks and creates a sub-shell, according to the value of $SHELL, and records the text from this session. The script ends when the forked shell exits or when Control-d is typed. OPTIONS
The following option is supported: -a Appends the session record to filename, rather than overwriting it. NOTES
script places everything that appears on the screen in filename, including prompts. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ |CSI |Enabled | +-----------------------------+-----------------------------+ SEE ALSO
attributes(5) WARNINGS
script can pose a security risk when used in directories that are writable by other users (for example, /tmp), especially when run by a privileged user, that is, root. Be sure that typescript is not a link before running script. SunOS 5.10 30 Jan 2004 script(1)
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