Stupd question about environment variable

[Lele]

Hi, as Newbie i have a stupid question that i am sure everybody but me, knows the answer.
Why the variable $LINE, if echoed from command line, gives the correct number of lines of the screen, but if echoed within a script it gives a blank value?
Thank you
Gabe

[likwid]

My guess is the subshell that a script is executed in doesn't have any real lines to it.

[Lele]

My guess is the subshell that a script is executed in doesn't have any real lines to it.

Is there a way to get the resolution of the screen from the script?
Perhaps with tput...

[likwid]

xrandr, if you have it.

[scm]

Have you tried exporting the variable so it's inherited by subshells?

[likwid]

This would work, however I'm not sure how viable of a solution it is.

[scm]

Well, the problem Lele wanted to solve was how to get the value of the LINE var in a subshell, so if it works, it's viable! Whether it's the solution to the real problem, of course ....

[likwid]

Well, running export LINES; export COLUMNS before running the script everytime would kind of not be cool. You could add -i as an argument to bash at the top of your script, that would probably give you LINES and COLUMNS.