Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Get Rid ^C when pressed Ctrl-C
Top Forums Shell Programming and Scripting Get Rid ^C when pressed Ctrl-C Post 302736113 by vietrice on Monday 26th of November 2012 08:56:10 PM
Old 11-26-2012
Is it possible to change the output ^C to something else like a space?
Quote:
Originally Posted by jim mcnamara
Rather than me blindly giving you code, try using ansi escape sequences inside the
trap statement. Use them to:

Save the cursor position,
then move it to a safe spot,
read foo,
restore the cursor.

The CSI sequences and some of the SGR sequences in this page are worth playing around with a bit. There is a CSI code to turn off the cursor. Some terminal settings are affected by locale, too. If you are using an Asian locale, you are probably using unicode or another wide charset.

See:
ANSI escape code - Wikipedia, the free encyclopedia
 

10 More Discussions You Might Find Interesting

1. Programming

know what key is pressed

hi i´m making a program, and i would like to know how can i know what key was pressed. i'm using Sun5.7 and C. is there a keypress/keypressed function in C? how can i know recognize the keys (enter, tab, shift, etc.)? can i recognize two keys ? (shift+A, ctrl+C, etc) any idea.. thanks (4 Replies)
Discussion started by: DebianJ
4 Replies

2. AIX

Disable ctrl-c,ctrl-d,ctrl-d in ksh script

I wrote a ksh script for Helpdesk. I need to know how to disable ctrl-c,ctrl-z,ctrl-d..... so that helpdesk would not be able to get to system prompt :confused: (6 Replies)
Discussion started by: wtofu
6 Replies

3. Shell Programming and Scripting

Catching ctrl-C or ctrl-D

Hi there, I'm using HP-UX 11 machine. I am running a script, thats gonna take a long time to execute. When I press ctrl-c to come out of my script, I have to catch that signal(ctrl-c) and display that ctrl-c had been pressed. How can I do it. Thanks in advance (2 Replies)
Discussion started by: sendhilmani123
2 Replies

4. Shell Programming and Scripting

detect F5 is pressed

Hello friends, I want to write a shell script in bash shell . Working for the script is to detect any key pressed and disply on screen as "you have pressed: " For example if user pressed F5 then a messaged has to be displayed as "you have pressed F5. Thank you. (4 Replies)
Discussion started by: pradeepreddy
4 Replies

5. Shell Programming and Scripting

how can i do some action when 'ctrl+d' is pressed

hi Gurus, please why is this happening: when i run this: #!/bin/bash declare -a name declare -a ph declare -a eid r=0; c=1; i=1; n=; echo " name phone email_id" while : do #if ; then #break; #else echo -n "field $i:"; read name ph eid; let "i++"; ... (5 Replies)
Discussion started by: tprayush
5 Replies

6. Shell Programming and Scripting

Ctrl-C or Ctrl-Z causing exit the session

H! I have written script where it need to invoke the perl script in background, then write the pid in temp file then bring back the job to foreground. whenever the Ctrl-C or Ctrl-Z is pressed in the script has to exit and prompt should be dispalyed. but this script causing exit from shell session... (2 Replies)
Discussion started by: jramesh1
2 Replies

7. Shell Programming and Scripting

how can i know the pressed key is arrowup?

Hi all, I need to know how to test a pressed key is arrowup or arrowdown and etc.. I found that the "echo" won't print anything if i enter the arrowup in the below code: read echo "you pressed $REPLY" Then i find a way to achieve my goal. 1 #! /bin/bash 2 3 ARROWUP='\;then... (4 Replies)
Discussion started by: homeboy
4 Replies

8. Shell Programming and Scripting

How to handle CTRL+Z or CTRL+C in shells script?

Hi, while executing shell script, in the middle of the process, if we kill the shell script( ctrl+z or ctrl+c), script will be killed and the files which using for the script will be in the folder. How to handle those scenarios. Is there any possibilities, if user breaks the script, I need to... (3 Replies)
Discussion started by: ckchelladurai
3 Replies

9. UNIX for Dummies Questions & Answers

Ctrl-V + Ctrl-J for newline character does not work inside vi editor

Hi friends, I am trying to add a newline char ('\n') between the query and the commit statement in the following shell script. #! /bin/sh echo "select * from tab; commit;" > data.sql I have tried typing in "Ctrl-V + Ctrl-J" combination which has inserted ^@ (NUL) character but the commit... (1 Reply)
Discussion started by: royalibrahim
1 Replies

10. Shell Programming and Scripting

Automation of keyboard inputs..like Ctrl+d and Ctrl+a

Hi..! I'm stuck with my automation of starting a process and keeping it running even after the current ssh session has exited.. So i'm trying to use command 'screen'. which is doing exactly what i wanted, But the problem is automation of the same. i will have to press Ctrl+a and Ctrl+d for... (2 Replies)
Discussion started by: chandana hs
2 Replies

LEARN ABOUT DEBIAN

colrconv

COLRCONV(1)						      General Commands Manual						       COLRCONV(1)

NAME

       colrconv - hamradio convers client with sound and ncurses color support

SYNOPSIS

       colrconv [options] <host> [<service>]

DESCRIPTION

       This manual page documents briefly the colrconv commands.

       This manual page was written for the Debian GNU/Linux distribution because the original program does not have a manual page.

       Colrconv  is  a modified version of VA3DP's ttylink client. In addition to the basic split screen session it gives you color and sound sup-
       port plus some line editing capabilities, a scroll buffer and a status line.  Also the default service is changed to 3600 (convers).

       A new color is assigned to each user the first time he sends text and this color is used when displaying  any  subsequent  text	from  this
       user. Available colors are green, yellow, cyan, magenta, blue and red.  These are used twice, the second time with BOLD attribute on. After
       the colors run out they are used again.

       Bold red is reserved for special messages (starting with ***) and for private messages (eg. <*oh2bns*>: Hello!).

       Colrconv plays certain sound files when it receives text from the convers bridge.  The files are: callsign.au (eg. oh2bns.au),  unknown.au,
       signedon.au  says.au  and pingpong.au. This feature is still a bit experimental and only works with older convers servers. Also you have to
       make your own .au file. The rsynth package is good at this. See the readme for details. Sound files should go into /usr/lib/colrconv.

OPTIONS

       -nocolor
	      Start colrconv in black and white, even if terminal has color support.

       -c channel
	      Connect to channel number 'channel' at startup.

       -n name
	      Send a '/n name' when connected. When -n is omitted the user's login name is used.

LINE EDITING COMMANDS

       Ctrl-A Goto beginning of line.

       Ctrl-B and Left arrow
	      Go one character backward.

       Ctrl-D Delete character under cursor.

       Ctrl-E Goto end of line.

       Ctrl-F and Right arrow
	      Go one character forward.

       Ctrl-K Kill from cursor to end of line (and store to kill buffer).

       Ctrl-L Repaints the whole screen.

       Ctrl-N and Down arrow
	      Scroll Down.

       Ctrl-P and Up arrow
	      Scroll Up.

       Ctrl-R Reprint current line.

       Ctrl-U Delete current line in total.

       Ctrl-W Erase last word.

       Ctrl-Y Yank kill buffer.

       The scroll buffer can be browsed with arrow keys Up and Down (or Ctrl-P and Ctrl-N), PageUp, PageDown, Home and End keys.

FILES

       If ~/.conversrc exists, it is sent to the server after logging in.  Handy for automatically sending commands like /notify, /who, etc.

SEE ALSO

       /usr/share/doc/colrconv/README.colrconv.

AUTHOR

       This manual page was written by Joop Stakenborg <pa3aba@debian.org>, for the Debian GNU/Linux system (but may be used by others).

																       COLRCONV(1)
All times are GMT -4. The time now is 10:41 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy