Hi Folks,
Just for the record: I am a Mac User.
But I believe my question is a simple UNIX FBSD question.
My problem: I need to learn how to "pick up" the telephone line and dial a number from an Unix shell or shell script execution.
My modem is at /dev/cu.modem
Why I need it?
I... (12 Replies)
I am writing some java code to automate running an application on a Sun system. The application opens 9 terminal windows. Of those nine windows, I have to find two and give them focus long enough to send a keystroke. Since there seems to be no way to do this using java, is there a unix command I... (0 Replies)
Hi,
I am a newbie here. Trying to find a way of writing a script to launch multiple terminal or console windows on solaris 9. I used to be able to do this using cmdtool on older versions of solaris and it was even possible to configure the size and screen position of the window and the title. ... (5 Replies)
I am running Terminal (xterm) on FreeBSD and XFCE. When opening a new terminal window so that an additional tab appears, the window resizes to become taller and partially hiding behind the task bar. I noticed that Xubuntu has fixed this feature and the window does not resize when opening a second... (0 Replies)
Could someone please inform me of how to permanently change the titlebar name in terminal windows on solaris. I know how to do the xterm and all that but I need it so anytime anyone opens the terminal window it says something i want it too instead of "terminal". Thanks for any help. (1 Reply)
Hello!
I need to create a file and provide access to two users of the file under the same command in linuxs terminal window.
The question is how can I do it? (3 Replies)
Hi all
I haven't worked much in the terminal window until recently as I'm trying to install the Imagemagick package, it's not going well but thats another matter.
I'm worried now that I might have done something wrong. When I open the terminal window now I get
unknown-e0-f8-47-0d-1b-02:~... (3 Replies)
Hi Guys,
I am using simple ls command to find out whether the dir exist there or not. If dir found than remove. But the problem is I don't want the error shown on the terminal window that "dir not found" on the terminal window everytime i execute it. The code I am using is:
set x = `/bin/ls... (4 Replies)
I am inexperienced with scripting and it continues to baffles me speechless
I wrote a script so that it counts the number of subset of files (with different prefix) in all subdirectories under the current directory so that
find ./ -type d -maxdepth 1 -mindepth 1 > list_of_dir.txtfind all... (23 Replies)
Is it possible to toggle back and forth between an xterm invoked from one tty, and a shell invoked from a different tty?
I am running Centos 7 with KDE and booting in non-graphic mode. After logging in on the default window (/dev/tty1) , I can then use ALT-F2 to access a new window (/dev/tty2),... (1 Reply)
Discussion started by: rhgscty
1 Replies
LEARN ABOUT POSIX
clear
clear(1) General Commands Manual clear(1)NAME
clear - clear the terminal screen
SYNOPSIS
clear [-Ttype] [-V] [-x]
DESCRIPTION
clear clears your screen if this is possible, including its scrollback buffer (if the extended "E3" capability is defined). clear looks in
the environment for the terminal type given by the environment variable TERM, and then in the terminfo database to determine how to clear
the screen.
clear writes to the standard output. You can redirect the standard output to a file (which prevents clear from actually clearing the
screen), and later cat the file to the screen, clearing it at that point.
OPTIONS -T type
indicates the type of terminal. Normally this option is unnecessary, because the default is taken from the environment variable TERM.
If -T is specified, then the shell variables LINES and COLUMNS will also be ignored.
-V reports the version of ncurses which was used in this program, and exits. The options are as follows:
-x do not attempt to clear the terminal's scrollback buffer using the extended "E3" capability.
HISTORY
A clear command appeared in 2.79BSD dated February 24, 1979. Later that was provided in Unix 8th edition (1985).
AT&T adapted a different BSD program (tset) to make a new command (tput), and used this to replace the clear command with a shell script
which calls tput clear, e.g.,
/usr/bin/tput ${1:+-T$1} clear 2> /dev/null
exit
In 1989, when Keith Bostic revised the BSD tput command to make it similar to the AT&T tput, he added a shell script for the clear command:
exec tput clear
The remainder of the script in each case is a copyright notice.
The ncurses clear command began in 1995 by adapting the original BSD clear command (with terminfo, of course).
The E3 extension came later:
o In June 1999, xterm provided an extension to the standard control sequence for clearing the screen. Rather than clearing just the vis-
ible part of the screen using
printf '