Sponsored Content
Top Forums Shell Programming and Scripting While loop with limit counter Post 302990684 by unexistance on Monday 30th of January 2017 05:56:20 PM
Old 01-30-2017
While loop with limit counter

Code:
#!/usr/bin/ksh

c=0
while [[ ! -f /tmp/unex || $c -lt 10 ]]; do 
    echo /tmp/unex NOT found, iter : $c;
    ((c = $c + 1));
    sleep 2; 
done

so, the above counter doesn't work, already tried both -lt & -gt, and changed || to &&

so what am I missing?

Thanks in advance
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Loop counter variable display

Hello everyone, how can I send output to the screen from a running script or tcl, in such a way that if a loop is executing I will see the rolling counter on my screen as the records are processed in the loop. I do not want the screen to scroll, though. In other words can a var's value be painted... (2 Replies)
Discussion started by: lifespan
2 Replies

2. Shell Programming and Scripting

adding counter to a variable while moving in a loop

The scenario is like this : I need to read records from a file one by one and increment counter1, if a certain field matches with a number say "40"..the script should increment the counter2 and also extract a corresponding field from the same line and adding them one by one and redirecting the the... (5 Replies)
Discussion started by: mady135
5 Replies

3. Shell Programming and Scripting

S# in a for loop - concatenate $(loop counter)

Hi, hope I am posting in the right section. My problem is that I have 2 or more arguments passed and I want to check if the arguments passed exists or not. The first argument should not exist and the remaining others should exist. example: ./shells.sh argument1 argument2 argument3 ... (5 Replies)
Discussion started by: fight4love
5 Replies

4. Shell Programming and Scripting

loop with a counter on a constant in bash

Hello Everyone, I'm in need of assistance on creating a script with a counter on a certain string. Basically this script opens a log file and displays certain log data. There are two key words in the log. START and FINISH. In between the START and FINISH is a variable ACTNUMBER. It will... (1 Reply)
Discussion started by: rxc23816
1 Replies

5. Shell Programming and Scripting

File merging based on different counter loop

hello, File 1 main Group sub group MIT VAR_1D_DATA_TYPE 23-03-2012 MIT VAR_1D_DATA_TYPE 22-03-2012 MIT VAR_10D_DATA_TYPE 23-03-2012 MIT VAR_10D_DATA_TYPE 22-03-2012 MIT ... (0 Replies)
Discussion started by: manas_ranjan
0 Replies

6. Shell Programming and Scripting

How to use counter to run the script to limit number?

I want to run my shell script to the limit number.Suppose I know in advance that MAX=5 then I want that my script run 5 times only.Something like below$ vi testingMAX=5COMMAND="ssh -l stpuser VHLDVWSAD001 /projects/st/utils/deploy/deployall.sh >/dev/null 2>&1 &" ; sleep 20;count=0while... (2 Replies)
Discussion started by: anuragpgtgerman
2 Replies

7. Shell Programming and Scripting

How to implement the counter in loop?

Hi, I am working on a script where I need to add one functionality i.e. to could the number of tar files at particular location...but the script is working in below way. 1) create sandbox 2) Drop old member function 3) addmember function 4) Apply checkpoint lable 5) Resync operation(This... (1 Reply)
Discussion started by: anuragpgtgerman
1 Replies

8. Shell Programming and Scripting

Loop usage with counter

Hi friends, I just want to try some thing with shell using loop and counter I have 30 Directory, in each directory number of files say 5, 10, 20 etc... directory_1 directory_2 directory_n what I want to do is read files from directory_1 say 5 files if my counter is like this m=2000 ... (6 Replies)
Discussion started by: Akshay Hegde
6 Replies

9. Shell Programming and Scripting

Avoid multiple emails being sent - Counter, Loop?

Hello, I have currently coded a bash script below in which it does the following: # Archives compressed file from another location. Basically it moves *.gz files to another location. The script also sends an email whenever a new compressed file is placed. This is the issue that i... (5 Replies)
Discussion started by: Wizard_1979
5 Replies

10. Shell Programming and Scripting

Loop counter resets by itself

Hi! Can anyone explain this? The counter CDR_count should go on forever, but it suddenly resets at every step of the FOR loop (I know this because $_file has exactly 378 records). However, the counter reset is OUTSIDE the FOR loop. What's going on?? #!/bin/bash if || ; then echo ... (8 Replies)
Discussion started by: Flavius
8 Replies
shells(4)							   File Formats 							 shells(4)

NAME
shells - shell database SYNOPSIS
/etc/shells DESCRIPTION
The shells file contains a list of the shells on the system. Applications use this file to determine whether a shell is valid. See getuser- shell(3C). For each shell a single line should be present, consisting of the shell's path, relative to root. A hash mark (#) indicates the beginning of a comment; subsequent characters up to the end of the line are not interpreted by the routines which search the file. Blank lines are also ignored. The following default shells are used by utilities: /bin/bash, /bin/csh, /bin/jsh, /bin/ksh, /bin/pfcsh, /bin/pfksh, /bin/pfsh, /bin/sh, /bin/tcsh, /bin/zsh, /sbin/jsh, /sbin/sh, /usr/bin/bash, /usr/bin/csh, /usr/bin/jsh, /usr/bin/ksh, /usr/bin/pfcsh, /usr/bin/pfksh, /usr/bin/pfsh, and /usr/bin/sh, /usr/bin/tcsh, /usr/bin/zsh. Note that /etc/shells overrides the default list. Invalid shells in /etc/shells may cause unexpected behavior (such as being unable to log in by way of ftp(1)). FILES
/etc/shells lists shells on system SEE ALSO
vipw(1B), ftpd(1M), sendmail(1M), getusershell(3C), aliases(4) SunOS 5.10 4 Jun 2001 shells(4)
All times are GMT -4. The time now is 07:28 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy