Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: vi scrolling issue
Operating Systems AIX vi scrolling issue Post 302226535 by bakunin on Tuesday 19th of August 2008 07:39:52 AM
Old 08-19-2008
The problem is an incorrect setting of the "$TERM" environment variable.

Any program trying to do "more fancy" things on a terminal (vi, for instance, has to write to random positions on the screen to update it, not only streams of output like "ls") first evaluates this variable, then looks into the "termcap" database. In this database there are escape sequences for every capability (hence the name) and the program will use these. One such capability could be to position the cursor, another to switch to reverse video, another to switch back, asf. This is how vi (and programs like it: less, view, ...) handle different terminals types without having to take care of these themselves: the termcap database.

So far the theory. ;-))

The Windows telnet is notorious for setting the terminal type to "ansi" while in fact emulating a vt100 terminal. Therefore: issue the line

Code:
export TERM=vt100

and everything should be fine. If you have similar troubles again use

Code:
echo $TERM

to display the variables current value.

I hope this helps.

bakunin
 

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Vi horizontal scrolling

I have to look through logfiles where lines are several hundred characters long and if I open the log in Vi it automatically word wraps the line. In Vim you can use the -nowrap option to stop this, but how can you do this in Vi? I ask because I don't want to see the whole line, just the first few... (8 Replies)
Discussion started by: rupweb
8 Replies

2. UNIX for Dummies Questions & Answers

Help! scrolling numbers and letters

Hello all I am a unix newbie.... I have a sun netra t1 and it is freaking out I am connected to it through a console port, and it is just spitting out a ton on numbers and letters like below its just keeps going and going. I have tried rebooting it and I cannot get it back to any kind of a... (1 Reply)
Discussion started by: intraining11
1 Replies

3. Shell Programming and Scripting

scrolling cursor

Hi, I'm writing scripts in perl and shell and want to add the oprion of scrolling cursor on the screen when there is no output to the screen for long time. I saw it in some script but I don't have the source code. Are anyone know how can I perform this ? Thanks (1 Reply)
Discussion started by: Alalush
1 Replies

4. UNIX and Linux Applications

command scrolling using arrow keys

hi, can anyone tell me how to enable arrow keys to scroll thru the commands on command prompt. I am using C shell ( I know, in k shell, set -o vi would enable vi command history, but set -o doesnte exist in c shell) (4 Replies)
Discussion started by: hemangi13
4 Replies

5. UNIX for Dummies Questions & Answers

Scrolling text continued

Perderabo * Unix Daemon * Join Date: Aug 2001 Location: Ashburn, Virginia Posts: 9,071 Using head and tail like that is terribly inefficient. I decided to try a rewrite. Sheesh...I spent all morning on this.... Code: #! /usr/bin/ksh # # scroller --- display text, but sleep every... (0 Replies)
Discussion started by: jamesapp
0 Replies

6. Shell Programming and Scripting

Paging/Scrolling a List of files for selection

Hi All, I have the following script and would like to add page up and down functionality to be able to stroll through the list. Is this possible? If so, Any pointers to examples, info, tips, suggestions would be appreciated. BTW, Any suggestion for better practices on the following code... (5 Replies)
Discussion started by: Festus Hagen
5 Replies

7. Solaris

How to view all the emails without scrolling over the screen

When I enter Solaris mail command, I get many emails on the screen on scrolling. How can I get it in one by one. BTW, if I delete the long list of emails by d command at the end, rest of the emails comes in one after other :rolleyes: Thanks... (0 Replies)
Discussion started by: wimaxpole
0 Replies

8. Shell Programming and Scripting

Scrolling through text while interacting with program prompts

Hi all, I am trying write a shell script to automate the installation of a program, but during the process of the installation, the installation program requires the user to scroll through 10 pages of a license agreement. Since this is coming from stdout and is not a prompt, I am unable to send... (4 Replies)
Discussion started by: nanlee
4 Replies

9. Red Hat

Apple's Magic Mouse scrolling not working in RHEL 6

I'm running Red Hat Enterprise Linux (RHEL) Workstation release 6.4 (Santiago) and kernel 2.6.32-358.11.1.el6.x86_64. The list of loaded kernel modules is shown below. Although Apple's Magic Mouse is correctly connected via Bluetooth and the right and left buttons are working as expected, the... (2 Replies)
Discussion started by: web_knows
2 Replies

LEARN ABOUT NETBSD

ul

UL(1)							    BSD General Commands Manual 						     UL(1)

NAME

     ul -- do underlining

SYNOPSIS

     ul [-i] [-t terminal] [name ...]

DESCRIPTION

     ul reads the named files (or standard input if none are given) and translates occurrences of underscores to the sequence which indicates
     underlining for the terminal in use, as specified by the environment variable TERM.  The file /usr/share/misc/terminfo is read to determine
     the appropriate sequences for underlining.  If the terminal is incapable of underlining, but is capable of a standout mode then that is used
     instead.  If the terminal can overstrike, or handles underlining automatically, ul degenerates to cat(1).	If the terminal cannot underline,
     underlining is ignored.

     The following options are available:

     -i      Underlining is indicated by a separate line containing appropriate dashes `-'; this is useful when you want to look at the underlin-
	     ing which is present in an nroff(1) output stream on a crt-terminal.

     -t terminal
	     Overrides the terminal type specified in the environment with terminal.

ENVIRONMENT

     The following environment variable is used:

     TERM  The TERM variable is used to relate a tty device with its device capability description (see termcap(5)).  TERM is set at login time,
	   either by the default terminal type specified in /etc/ttys or as set during the login process by the user in their login file (see for
	   example csh(1)'s setenv).

SEE ALSO

     colcrt(1), man(1), nroff(1)

HISTORY

     The ul command appeared in 3.0BSD.

BUGS

     nroff(1) usually outputs a series of backspaces and underlines intermixed with the text to indicate underlining.  No attempt is made to opti-
     mize the backward motion.

BSD
								September 29, 2009							       BSD
All times are GMT -4. The time now is 03:25 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy