A means of clearing the scroll buffer in an OSX Terminal.
I was looking for a method of clearing the buffer of the vertical scroll back slider and came across this little Terminal escape snippet I had never seen before:
SO...
Performs a terminal reset, buffer clearance, clear the window, set back to default colours etc... and places prompt at the top.
Neat eh!
Even the builtin Terminal reset command doesn't do that.
(This also works under 'xterm' too.)
These 4 Users Gave Thanks to wisecracker For This Post:
For a long time, when I type man anything on my Mac, both the manpage header fonts and the background was black, so I had to use my mouse to highlight the manpage output to read it. It was really annoying.
The problem was the same both locally or using the terminal and going ssh somewhere.
... (1 Reply)
Please forgive me if this is the wrong place to post.
I am a VERY basic user here and have been tasked with adding a user to our email system -- we use a squirrelmail interface and I have root passwords etc.
I tried logging in through a browser but get this error:
ERROR: Connection dropped... (1 Reply)
Please forgive me if this is the wrong place to post.
I am a VERY basic user here and have been tasked with adding a user to our email system -- we use a squirrelmail interface and I have root passwords etc.
I tried logging in through a browser but get this error:
ERROR: Connection... (1 Reply)
Hi,
I'm trying to come up with a simple expect script that allows me to login to a system and run a single command ... something like this:
#!/usr/bin/expect -f
# let's set some variables
#set password
set ipaddr
set ponumber
set hostname
set timeout -1
# let's now connect to the... (0 Replies)
I was wondering if anyone can tell me how to log back in to unix after logging out. I have a MBPro. If I don't have the window close after exiting, then there is the phrase 'process completed' in brackets with a blinking cursor, but I can't type anything in.
Is it also possible to start the... (4 Replies)
I'm hoping someone here can help me. I'm computer literate but by no means an expert! I'm simply trying to recover data from my DLink DNS343 NAS mounted on my X86 iMac using SMB. Somehow, in moving to a new computer, I have lost access to some files on the NAS. Just some files are access denied.
... (0 Replies)
Hi ,
I have a Mac OS X Lion mac book pro. I have a hard drive which I have partitioned in two
(a) OSX Partition - Mac OS Extended Journaled format. Mount point: /
(b) Data Partition - Windows NT Filesystem format. Mount point: /Volumes/Data
I need to access the NTFS partition (I have a... (6 Replies)
I am using Terminal on an OSX system to access and edit crontab files on a 'headless' Solaris 11 server. Crontab -e on OSX invokes vi as the editor, which is fine, but I am getting unexpected characters on keystrokes and have to abort the edit. If this is an emulation issue, would someone please... (1 Reply)
hi all,
first off thesis my first post so if i am not in the right forum, i apologize.
i'm an absolute newbie to unix. i've been reading my books and studying my crib sheets etc. but... :/
i want to accomplish two things.
1. search and remove duplicate files i.e.. audio, doc alias etc.... (1 Reply)
Hi guys and gals...
After much searching on the good ol' internet I could find nothing, so this is the result.
ALthough many people seem to have asked this question no-one seems to have a solution so here we go.
I need for AudioScope.sh, 'xterm' to run a second program for some of its... (2 Replies)
Discussion started by: wisecracker
2 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 '