gnome-terminal

How do I find number of vertical lines available in the terminal?

by

I’m writing a script which shows the git log for a directory when I cd into it. Such a log can be overwhelming, containing hundreds of lines. So far I have been limiting that to a hard-coded 20 lines (... | head -n 20), which is fine on the screen at work, but too much on the smaller MacBook screen at home.

Orphan process’s parent id is not 1 when parent process executed from GNOME Terminal

by

I start a new process from GNOME Terminal and then this process fork a child.
But when I killed the parent process the orphaned process’s parent id became something other than 1 which represent init --user pid.
When I do this in virtual terminals, the parent pid is 1 which represent init process.
How can I execute new process from GNOME Terminal so that when it is died, the child process’s parent pid became 1 and not pid of init --user process?
Thanks a lot.