Top Forums Shell Programming and Scripting Using arrow keys in shell scripts Post 302319731 by cambridge on Tuesday 26th of May 2009 05:12:42 AM
The 'echo' command is not normally a ksh built-in. This means that not only are the options system-dependent (and I needed code that worked reliably on numerous platforms), but it will also spawn a new process which will slow your code down. The 'print' command is built-in to the shell and does not suffer these problems. I would always recommend people use 'print' instead of 'echo' when using ksh.
Test Your Knowledge in Computers #375
Difficulty: Easy
In December 2008, the Austin Group published a new major Unix revision, known as POSIX:2008 (formally: IEEE Std 1013.1-2008).
True or False?

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Trapping Arrow keys

Hey Guys , How do we trap the arrow keys in shell programming. Or atleast can we read the ascii code of the arrow keys. I want to read the arrow keys pressed by the user and accordingly highlight the corresponding menu option. Is it possible in shell to do so ?? ... (1 Reply)
Discussion started by: nageshrc
1 Replies

2. UNIX for Dummies Questions & Answers

arrow keys / special keys

how to use the arrow keys in shell scripting. is there any special synatax / command for this. i just want to use the arrow keys for navigation. replies appreciated raguram R (3 Replies)
Discussion started by: raguramtgr
3 Replies

3. Shell Programming and Scripting

How to read arrow keys on really old bash?

I would like to get a script to respond to arrow key presses to scroll up and down a menu. The platform is CDLinux which uses a prehistoric version of bash, version 1.14.7. I would like to do something like "read -sn 1 keyin" but the "read" command is so primative that it only has the -r... (1 Reply)
Discussion started by: simonb
1 Replies

4. Solaris

Using arrow keys

Hello, I am unable to use the arrow keys in some applications. For example, in bash, I am able to use the arrow keys to to go back and forth characters in current line and search the history--I can do everything you'd expect to be able to do with the arrow keys. However, in bc, I cannot use... (4 Replies)
Discussion started by: cooldude
4 Replies

5. 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

6. UNIX for Dummies Questions & Answers

SunOS 5.10 - VI Arrow keys not working

Hi I am working on SunOS 5.10 from remote terminal using putty. Also echo $TERM xterm In vi editor when in insert mode arrow keys are not working for cursor movement instead they print A B C and D. Please help. thanks ravs (7 Replies)
Discussion started by: ravashingravi
7 Replies

7. Shell Programming and Scripting

problem using arrow keys in bash shell

hello everybody, as many, I have a problem with a script... I wrote a shell script in which I want to read a variable value. the problem is that I can't use the arrow keys. Here is the script I use : #!/bin/bash stty erase ^H read foune echo "$foune" exit 0; the problem is... (2 Replies)
Discussion started by: Moumou
2 Replies

8. UNIX for Advanced & Expert Users

SSH closes connection when using arrow keys

Hi, I'm having a problem with my ssh link to various Sun servers running Solaris 9 and 10 from an Windows XP box running Cygwin/X. I am using ssh to connect to a number of different Sun servers. My problem is that when editing a remote shell command line with the arrow direction keys the... (0 Replies)
Discussion started by: stv_t
0 Replies

9. UNIX for Dummies Questions & Answers

Tux-HJKL as arrow keys

I would like to configure the key combination Tux-J (Win-J) as Down Arrow, and the rest of the VIM-style movement keys as well (HKL). What is the best way to do this so that it will work in all applications? I thought about editing the keyboard layout but I'm not sure how to do that for Tux-key... (2 Replies)
Discussion started by: dotancohen
2 Replies

10. UNIX for Dummies Questions & Answers

Arrow keys binding in AIX v5.3 - how?

Would somebody advise how arrow keys could be binded in AIX v5.3? I could not find reasonable information online related to AIX. I've meat advises to define: alias __A=$'\020' # or the same: alias __A=$(echo "\020") alias __B=$'\016' alias __C=$'\006' alias __D=$'\002' But it does... (2 Replies)
Discussion started by: alex_5161
2 Replies
MPROMPT(1)							      mprompt								MPROMPT(1)

mprompt - simple prompt-based control for mpd SYNOPSIS
mpompt [-s] [-m key=key] [-t n] [-f] [tty] [-T] [host] DESCRIPTION
mprompt is a mpd client with a prompt-based interface. It is designed to be usable on a headless machine. At the prompt, enter the name of a playlist, or part of the name of an album, artist, or song. Matching items will start playing. You can also paste in urls to stream. (If the perl String::Approx module is available, it will be used to handle typos, etc in the names you enter.) Use the left and right arrow keys to adjust volume, and the up and down arrow keys to move through the playlist. The Tab and Enter keys can both be used to pause and unpause playback. (Enter toggles pause only if nothing has been entered at the prompt.) Example of how to run mprompt in /etc/inittab: 1:2345:respawn:/usr/bin/mprompt /dev/tty1 OPTIONS
-s This option allows shell commands to be typed in to mprompt, to be run by whatever user it is running as. (Typically root if it is run from /etc/inittab). To enter a shell command, type a "!", followed by the command to run, followed by Enter. -m key=key This option allows remapping keys. Any key can be remapped to any other key, which is useful to support keyboard with unusual key layouts, or missing keys. For alphanumeric and punctuation keys, individual symbols can be remapped. For example, "-m a=b" will turn each entered "a" into "b". For other keys, use the following names: <return> <tab> <space> <up> <down> <left> <right> <backspace> For example, -m "n=<down>" will map the "n" key to the down arrow, causing that key to change to the next track; -m "<space>=<return>" will make the space bar act as a pause. It's possible to swap keys too. For example, -m "<down>=<up>" -m "<up>=<down>" A single key can also be bound to a series of keystrokes. For example, -m "1=Mule Variations<return>" will cause the "1" key to play the "Mule Variations" album, a nice choice. -t n Adds a timeout, a specified number of seconds after which the entry on the command line will be cleared. Useful for headless systems, to avoid cat-on-keyboard confusing your later commands. -T Enables terse output mode. This mode tries to avoid displaying excessive or complex things, with the intent that mprompt's output can be piped into a speech synthesiser, such as espeak. SEE ALSO
vipl(1) mptoggle(1) mpd(1) AUTHOR
Copyright 2009 Joey Hess <> Licensed under the GNU GPL version 2 or higher. perl v5.10.1 2010-03-06 MPROMPT(1)

Featured Tech Videos

All times are GMT -4. The time now is 06:38 PM.
Unix & Linux Forums Content Copyright 1993-2020. All Rights Reserved.
Privacy Policy