Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Script runs in endless loop
Top Forums Shell Programming and Scripting Script runs in endless loop Post 302950183 by RavinderSingh13 on Wednesday 22nd of July 2015 07:14:14 AM
Old 07-22-2015
Wrench
Hello bayoo,

Welcome to forum, a special thanks to you for using code tags for commands and codes used in your post. I can see there is NO increment given in your code for variable named a so condition in loop will be always TRUE that's why it is going to be endless, please add so and this should be fine then, though I am not sure about your complete requirement but for your question this should to the trick.

Code:
 a=$((a+1))

Add this before the end of the loop, as per thumb rule.

Thanks,
R. Singh
Last edited by RavinderSingh13; 07-22-2015 at 08:26 AM..
 

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Endless loop - Fork function failed?

I need a quick script that will serve as a sort of "real time monitor" for watching some log files. I am using Bourne shell in HP-UX 10.20. I have basically created a script that never ends, unless of course I manually terminate it. Here's the script (it's called qhistory): clear echo "REAL... (3 Replies)
Discussion started by: cdunavent
3 Replies

2. Shell Programming and Scripting

Shell Script: want to insert values in database when update script runs

Hi , I am new to linux and also also to shell scripting. I have one shell script which unpacks .tgz file and install software on machine. When this script runs I want to insert id,filename,description(which will be in readme file),log(which will be in log file) and name of unpacked folder... (1 Reply)
Discussion started by: ring
1 Replies

3. Shell Programming and Scripting

Endless Loop

Hi, I'm pretty new to UNIX shell scripting and need some help. We have an Informatica interface that dumps any files that have errors into a directory. I need to check that directory periodically for any of up to 9 files that might be in it and run a specific process for each file found. The... (3 Replies)
Discussion started by: JeffR
3 Replies

4. Shell Programming and Scripting

[PHP] endless loop mimics a cron. Make sure only one instance is running

Hi, PHP user here. I'm using an endless loop to perform to mimic a cron. The script does something every 20 minutes. It sleep()s in the meantime. I have various checks that ensure that only instance can run, including a "gentleman agreement" locked file. However, I'd like to make sure... (2 Replies)
Discussion started by: jjshell
2 Replies

5. Shell Programming and Scripting

Preventing an endless loop with recursive grep

When finding a string in files within a directory, one can use this: grep -r "searchstring" dir/subdir/ > listofoccurrences.txt For brevity sake one can enter the intended directory and use this: grep -r "searchstring" . > listofoccurrences.txt which as I found out leads to an endless loop,... (2 Replies)
Discussion started by: figaro
2 Replies

6. Shell Programming and Scripting

KSH - Issue with endless loop.

First time post. I did a search so I didn’t see this specific issue. It seems to be a head scratcher for me. I have an hourly job that on rare occasions, gets into an endless loop. I’ve tried different scenarios but the current version does basically the following. Find all the *.arc files and... (18 Replies)
Discussion started by: Sylvan303
18 Replies

7. Shell Programming and Scripting

[Solved] Endless while loop when compare files

Hi All, I've written a script to read 2 files and compare the contents using while loop but somehow when $line is not found in test2, the script will continue looping. Below is my code, pls advise what could went wrong TIA Nick for line in test1.txt | while read line do grep -i... (4 Replies)
Discussion started by: Nick1971
4 Replies

8. UNIX for Dummies Questions & Answers

Script only runs as a particular user

Hi guys So I've got this PERL script that for one reason or another I need to run as a user other than the user that created the script. When I su - to another user the script won't run and doesn't give me any output as to why. No permission denied or anything like that. I've chmod 777'd the... (5 Replies)
Discussion started by: Jaymoney
5 Replies

9. UNIX for Beginners Questions & Answers

Help with accidental endless loop

I was practicing writing simple loops as I am a new bash user and I created this script, which turned out to be an endless loop where the echo output does not stop and I do not see where my mistake is. #!/bin/bash echo 'enter a number from 1 to 100' read number while do ... (2 Replies)
Discussion started by: goldenlinx
2 Replies

LEARN ABOUT MOJAVE

platform::shell

platform::shell(n)					       Tcl Bundled Packages						platform::shell(n)

__________________________________________________________________________________________________________________________________________________

NAME

       platform::shell - System identification support code and utilities

SYNOPSIS

       package require platform::shell ?1.1.4?

       platform::shell::generic shell
       platform::shell::identify shell
       platform::shell::platform shell
_________________________________________________________________

DESCRIPTION

       The platform::shell package provides several utility commands useful for the identification of the architecture of a specific Tcl shell.

       This  package  allows the identification of the architecture of a specific Tcl shell different from the shell running the package. The only
       requirement is that the other shell (identified by its path), is actually executable on the current machine.

       While for most platform this means that the architecture of the interrogated shell is identical to the architecture of  the  running  shell
       this  is  not generally true. A counter example are all platforms which have 32 and 64 bit variants and where a 64bit system is able to run
       32bit code. For these running and interrogated shell may have different 32/64 bit settings and thus different identifiers.

       For applications like a code repository it is important to identify the architecture of the shell which will  actually  run  the  installed
       packages, versus the architecture of the shell running the repository software.

COMMANDS

       platform::shell::identify shell
	      This command does the same identification as platform::identify, for the specified Tcl shell, in contrast to the running shell.

       platform::shell::generic shell
	      This command does the same identification as platform::generic, for the specified Tcl shell, in contrast to the running shell.

       platform::shell::platform shell
	      This command returns the contents of tcl_platform(platform) for the specified Tcl shell.

KEYWORDS

       operating system, cpu architecture, platform, architecture

platform::shell 						       1.1.4							platform::shell(n)
All times are GMT -4. The time now is 03:46 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy