Top Forums Shell Programming and Scripting how to disable and enable <control>-c or -z in a shell script Post 302395820 by amitranjansahu on Wednesday 17th of February 2010 04:59:37 AM
Or you can use

PHP Code:
trap '' INT

trap 
'' HUP 
For more Details
trap
 
Test Your Knowledge in Computers #749
Difficulty: Medium
The ZX81 had a base configuration of 1 KB of on-board memory that could officially be expanded externally to 64 KB.
True or False?

10 More Discussions You Might Find Interesting

1. Linux

Enable and disable ttyS0

I have a modem connect it to ttyS0 , in unix sco i know i can disable and enable the port , how can i do this , is there a command that will allow me to do this. **** I'm running Redhat 9 *****External Usrobotics 56k Thanks a lot guys (1 Reply)
Discussion started by: josramon
1 Replies

2. Solaris

Enable/Disable rlogin and rcopy

How can i disable rlogin or rcopy from being running as a services in my system ? is there a way ? and is it gonna affect other remote services like ssh and telnet ? (3 Replies)
Discussion started by: XP_2600
3 Replies

3. Shell Programming and Scripting

Enable & disable cronjob

Hi All, I am new to cronjob and need some guidance on this. 1) How do i enable a cronjob ? Can it be done by "crontab mycronfile" or "crontab -e mycronfile" 2) How can i disable the cronjob? Can deleting of the "mycronfile" disable the cron or do i need to perform "crontab -r mycronfile"... (7 Replies)
Discussion started by: Raynon
7 Replies

4. Cybersecurity

How to disable RIP and enable EGP

Hello, We recently had a Nessus scan done of our system and the solution to one of the findings was this: disable the RIP agent and use an EGP routing protocol I have been unable to find any specific instruction on how to do either. We are running Solaris 8. Any help would be greatly... (3 Replies)
Discussion started by: stringman
3 Replies

5. Solaris

SSH enable, Telnet disable ...

Hi... How do I enable SSH and disable telnet.. Also - is there anything special I need to do to ensure that a new user can use ssh and su but not telnet? Adel (15 Replies)
Discussion started by: ArabOracle.com
15 Replies

6. Shell Programming and Scripting

How to disable Enable/Disable Tab Key

Hi All, I have bash script, so what is sintax script in bash for Enable and Disable Tab Key. Thanks for your help.:( Thanks, Rico (1 Reply)
Discussion started by: carnegiex
1 Replies

7. UNIX for Dummies Questions & Answers

crontab: disable/enable

since i don't have root access, i have been doing: crontab -l > /tmp/username.crontab crontab -r vi /tmp/username.crontab and copy page crontab -e, and paste sometimes, /tmp/username.crontab has more than 1 page, so i have to copy twice. how do i copy all contents from... (2 Replies)
Discussion started by: tjmannonline
2 Replies

8. UNIX for Dummies Questions & Answers

Enable and disable the auto mount

How to enable and disable the auto mount option for USB devices.? (3 Replies)
Discussion started by: ungalnanban
3 Replies

9. HP-UX

FTP service Enable/Disable

hi everybody, I can easily enable /disable the FTP service from SAM, how can I do this via command line? using inetd? how? cheers, messi (1 Reply)
Discussion started by: messi777
1 Replies

10. Infrastructure Monitoring

OID to disable/enable printing

Hi @ all, we are a non-profit educational organisation. Now my company wants to disable printers, when a room is not used. I do a lot monitoring, using snmp. So I had the idea of disabling and enabling the printers by using snmp. After searching for hours, I only found some status-objects (ro)... (1 Reply)
Discussion started by: karls0
1 Replies
trap(1) 							   User Commands							   trap(1)

NAME
trap, onintr - shell built-in functions to respond to (hardware) signals SYNOPSIS
sh trap [ argument n [n2...]] csh onintr [-| label] ksh *trap [ arg sig [ sig2...]] DESCRIPTION
sh The trap command argument is to be read and executed when the shell receives numeric or symbolic signal(s) (n). (Note: argument is scanned once when the trap is set and once when the trap is taken.) Trap commands are executed in order of signal number or corresponding symbolic names. Any attempt to set a trap on a signal that was ignored on entry to the current shell is ineffective. An attempt to trap on signal 11 (memory fault) produces an error. If argument is absent all trap(s) n are reset to their original values. If argument is the null string this signal is ignored by the shell and by the commands it invokes. If n is 0 the command argument is executed on exit from the shell. The trap command with no arguments prints a list of commands associated with each signal number. csh onintr controls the action of the shell on interrupts. With no arguments, onintr restores the default action of the shell on interrupts. (The shell terminates shell scripts and returns to the terminal command input level). With the - argument, the shell ignores all inter- rupts. With a label argument, the shell executes a goto label when an interrupt is received or a child process terminates because it was interrupted. ksh trap uses arg as a command to be read and executed when the shell receives signal(s) sig. (Note that arg is scanned once when the trap is set and once when the trap is taken.) Each sig can be given as a number or as the name of the signal. trap commands are executed in order of signal number. Any attempt to set a trap on a signal that was ignored on entry to the current shell is ineffective. If arg is omitted or is -, then the trap(s) for each sig are reset to their original values. If arg is the null (the empty string, e.g., "" ) string then this signal is ignored by the shell and by the commands it invokes. If sig is ERR then arg will be executed whenever a command has a non- zero exit status. If sig is DEBUG then arg will be executed after each command. If sig is 0 or EXIT for a trap set outside any function then the command arg is executed on exit from the shell. The trap command with no arguments prints a list of commands associated with each signal number. On this man page, ksh(1) commands that are preceded by one or two * (asterisks) are treated specially in the following ways: 1. Variable assignment lists preceding the command remain in effect when the command completes. 2. I/O redirections are processed after variable assignments. 3. Errors cause a script that contains them to abort. 4. Words, following a command preceded by ** that are in the format of a variable assignment, are expanded with the same rules as a vari- able assignment. This means that tilde substitution is performed after the = sign and word splitting and file name generation are not performed. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ SEE ALSO
csh(1), exit(1), ksh(1), sh(1), attributes(5) SunOS 5.10 23 Oct 1994 trap(1)

Featured Tech Videos

All times are GMT -4. The time now is 02:06 PM.
Unix & Linux Forums Content Copyright 1993-2020. All Rights Reserved.
Privacy Policy