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)
Hi
On solaris, when I press Ctrl+S on an XTERM, the window normally freezes. But today on the same machine, the Ctrl+S key results in (i-search) !! I understand that it has got something to do with emacs (may be not). But I do not use emacs at all. Other specific keys including <backspace>,... (3 Replies)
Is it possible to create an alias wherein it will use a keystroke.
Like to clear the screen in bash i have to use CTRL + l.
I want to make an alias 'c' out of this.
Thanks. (6 Replies)
I'm going through "learning the bash shell" by newham and rosenblatt. I'm trying to ctro-O to execute and then go on to the next command in the history list, ctrl-o again, etc. (I'm just trying to get a feel for it in case I want to use it). But ctrl-o does nothing. Can someone help me out as to... (5 Replies)
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)
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)
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)
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)
readkey(3alleg4) Allegro manual readkey(3alleg4)NAME
readkey - Returns the next character from the keyboard buffer. Allegro game programming library.
SYNOPSIS
#include <allegro.h>
int readkey();
DESCRIPTION
Returns the next character from the keyboard buffer, in ASCII format. If the buffer is empty, it waits until a key is pressed. You can see
if there are queued keypresses with keypressed().
The low byte of the return value contains the ASCII code of the key, and the high byte the scancode. The scancode remains the same whatever
the state of the shift, ctrl and alt keys, while the ASCII code is affected by shift and ctrl in the normal way (shift changes case,
ctrl+letter gives the position of that letter in the alphabet, eg. ctrl+A = 1, ctrl+B = 2, etc). Pressing alt+key returns only the scan-
code, with a zero ASCII code in the low byte. For example:
int val;
...
val = readkey();
if ((val & 0xff) == 'd') /* by ASCII code */
allegro_message("You pressed 'd'
");
if ((val >> 8) == KEY_SPACE) /* by scancode */
allegro_message("You pressed Space
");
if ((val & 0xff) == 3) /* ctrl+letter */
allegro_message("You pressed Control+C
");
if (val == (KEY_X << 8)) /* alt+letter */
allegro_message("You pressed Alt+X
");
This function cannot return character values greater than 255. If you need to read Unicode input, use ureadkey() instead.
SEE ALSO install_keyboard(3alleg4), ureadkey(3alleg4), keypressed(3alleg4), clear_keybuf(3alleg4), simulate_keypress(3alleg4)Allegro version 4.4.2 readkey(3alleg4)