Sponsored Content
Full Discussion: trap command
Top Forums UNIX for Dummies Questions & Answers trap command Post 302536988 by Straitsfan on Wednesday 6th of July 2011 07:27:22 PM
Old 07-06-2011
Okay -- but I still don't get why the message isn't displayed. Other folks can get it. Any idea why not me? My book says it should display the message and go right back to the loop.

Sorry if it's a basic question, but I'm still new to this.
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Using TRAP command

I'm using the trap command to capture any signals received whilst my script is running. How's the best way of writing the signal and any other error messages to a file/error log' without having to type '2>$1' on the command line after the script name? Cheers (3 Replies)
Discussion started by: dbrundrett
3 Replies

2. UNIX for Dummies Questions & Answers

trap command

i have the following script that displays the current time until the user presses CTR + c.... but it does not work properly.... Something is not right with the trap command... Help plz... :confused: # script to continuously display current time. # if script is terminated trap signal... (3 Replies)
Discussion started by: onlyc
3 Replies

3. UNIX for Dummies Questions & Answers

trap command

Dear All could you please explain me what does the trap command do and how I can write a program which can work as a trap command(in C Language). (1 Reply)
Discussion started by: mobile01
1 Replies

4. Programming

trap command in Unix

Could anybody tell me what the trap command does and how it performs the action it does. I had read the trap manual page but it is too concise that nothing is clear about it. Please tell how it works. (1 Reply)
Discussion started by: mobile01
1 Replies

5. Shell Programming and Scripting

Use of TRAP Command

Hi, I would like to know the use of TRAP command. I am very new to the UNIX environment. I have just started learning the basic. So please teach me in a very simple way to understand. Also i would like to know the use of following command: trap 'dialog --msgbox "Script Aborted1" 6 50 ;... (2 Replies)
Discussion started by: Deepakh
2 Replies

6. Shell Programming and Scripting

Cntl+z Trap is not detecting ??? Help required to add a trap detection ???

Hi folks, I have tried to add some trap detection in the below script....this script is used to monitor database activities...in a rather awkward way :rolleyes:.... The idea behind adding trap is that....this script creates lots of temporary files in the running folder to store the count... (1 Reply)
Discussion started by: frozensmilz
1 Replies

7. UNIX for Advanced & Expert Users

trap command

Hello experts! I need to know the use of trap command please In one of our program we have trap "rm -f temp1 ; exit 1" 1 2 15 0 and program always exit with 1 there is a rm -f temp1 as well at the end of the program as rm -f temp1 exit 0 when I test a probram with set... (4 Replies)
Discussion started by: ramshree01
4 Replies

8. Shell Programming and Scripting

trap command

dear all; I can't under stand what does "trap" command do: for example see below: trap "echo; echo no interrupts >&2; sleep 3" 2 3 15 Plz , can any body explain the action of this command? BR (3 Replies)
Discussion started by: ahmad.diab
3 Replies

9. Homework & Coursework Questions

VM trap may work differently than a pure install trap.

Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted! 1. The problem statement, all variables and given/known data: That is the last reply I received from my instructor, and I'm looking for some alternatives. When using... (2 Replies)
Discussion started by: newuser45
2 Replies

10. Shell Programming and Scripting

Trap command not working

Hi Folks - For some reason, my trap command is not working. It's placed just prior to a normal exit: #:: ------------------------------------------------------------------------ #::-- Script Name: LCM_Backup.sh #:: #::-- Description: This script leverages Utility.sh to perform LCM... (16 Replies)
Discussion started by: SIMMS7400
16 Replies
tk_messageBox(n)					       Tk Built-In Commands						  tk_messageBox(n)

__________________________________________________________________________________________________________________________________________________

NAME
tk_messageBox - pops up a message window and waits for user response. SYNOPSIS
tk_messageBox ?option value ...? _________________________________________________________________ DESCRIPTION
This procedure creates and displays a message window with an application-specified message, an icon and a set of buttons. Each of the but- tons in the message window is identified by a unique symbolic name (see the -type options). After the message window is popped up, tk_mes- sageBox waits for the user to select one of the buttons. Then it returns the symbolic name of the selected button. The following option-value pairs are supported: -default name Name gives the symbolic name of the default button for this message window ( "ok", "cancel", and so on). See -type for a list of the symbolic names. If this option is not specified, the first button in the dialog will be made the default. -detail string Specifies an auxiliary message to the main message given by the -message option. Where supported by the underlying OS, the message | detail will be presented in a less emphasized font than the main message. -icon iconImage Specifies an icon to display. IconImage must be one of the following: error, info, question or warning. If this option is not speci- fied, then the info icon will be displayed. -message string Specifies the message to display in this message box. -parent window Makes window the logical parent of the message box. The message box is displayed on top of its parent window. -title titleString Specifies a string to display as the title of the message box. The default value is an empty string. -type predefinedType Arranges for a predefined set of buttons to be displayed. The following values are possible for predefinedType: abortretryignore Displays three buttons whose symbolic names are abort, retry and ignore. ok Displays one button whose symbolic name is ok. okcancel Displays two buttons whose symbolic names are ok and cancel. retrycancel Displays two buttons whose symbolic names are retry and cancel. yesno Displays two buttons whose symbolic names are yes and no. yesnocancel Displays three buttons whose symbolic names are yes, no and cancel. EXAMPLE
set answer [tk_messageBox -message "Really quit?" -icon question -type yesno -detail "Select "Yes" to make the application exit"] switch -- $answer { yes exit no {tk_messageBox -message "I know you like this application!" -type ok} } KEYWORDS
message box Tk 4.2 tk_messageBox(n)
All times are GMT -4. The time now is 04:23 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy