Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Clarification on if loop in Shell scripting
Top Forums Shell Programming and Scripting Clarification on if loop in Shell scripting Post 302539566 by Skrynesaver on Monday 18th of July 2011 06:24:02 AM
Old 07-18-2011
Code:
grep "1034" /u/kkk/bin/temp5.lst|cut -c1-2 >/u/kkk/bin/temp6.lst

This is a series of processes strung together using the pipe(|) and redirection(>) operators:
grep : Search for the string "1034" in the file /u/kkk/bin/temp5.lst and print those lines
cut: only print the first 2 characters of any match
print the result out as a new file "/u/kkk/bin/temp6.lst"
Code:
if [ -s /u/kkk/bin/temp6.lst ]
        then

If the file we redirected the output to is non-zero in size
Code:
echo ""
            echo "090 Database is not running. Try again later!"
                echo "095 waiting 15 minutes"
            date
            sleep 900
        fi

echo the messages above to STDOUT and wait 15 minutes (900 seconds)
Code:
grep "3114" /u/kkk/bin/temp5.lst|cut -c1-2 >/u/kkk/bin/temp6.lst
        if [ -s /u/kkk/bin/temp6.lst ]
        then
                echo ""
                echo "100 Not connected to Oracle. Waiting 15 minutes!"
                echo "030 waiting 15 minutes"
                date
                sleep 900

You should be able to piece that together from the previous block
Code:
        else
                more /u/kkk/bin/temp5.lst
                j=1
        fi

If the file has zero length page the file and set the variable "j" to 1
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

new to shell scripting: whats wrong with my if loop

#!/bin/bash for file in $HOME/*; do if ; then rm -i $file > /dev/null echo "$?" echo "$file has been deleted" fi done Been trying to learn shell scripting for a week or so now, when i run the script it doesnt display an error message, seems like it runs fine, however it doesnt delete... (10 Replies)
Discussion started by: stride6
10 Replies

2. Solaris

Problem in for loop of shell scripting in solaris

Hi below is my script for((i=0;i<=$TOTAL;i++)) do echo "IP's created are $s1.$s2.$s3.$s4" s4=`expr $s4 + 1` done where s1,2,3,4 are input varibles below error occurs while running the script syntax error at lin 11: '(' unexpected ... (12 Replies)
Discussion started by: krevathi1912
12 Replies

3. Shell Programming and Scripting

need some clarification on for loop in shel script

for ( ( $i=0 ; $i<=6 ; $i++ ) ) do p=/RSA-Data/PE-data00"${i}" echo "$p" done --- i need output as below /RSA-Data/PE-data000 . . . /RSA-Data/PE-Data006 (1 Reply)
Discussion started by: mail2sant
1 Replies

4. Shell Programming and Scripting

need loop clarification for the below code

for loop for string to check each path file count. can someone please help me out regarding this.. purpose is that it will gives the number of files inside the that directory.. i am bit confused in doing the loop for the above can someone plz fix. PATH1=/home/data1 PATH2=/home/data2... (2 Replies)
Discussion started by: mail2sant
2 Replies

5. Shell Programming and Scripting

while loop in shell scripting

Hi, I have a doubt in usage of while loop in Shell script as Iam new to this. My requirement is that,I have two different directories containing some files which move files to other folder after parsing is done. In my script i wanted to add a while loop which checks for the count in these two... (5 Replies)
Discussion started by: jyothi_wipro
5 Replies

6. Shell Programming and Scripting

while loop shell scripting help

hi i was wondering if someone can help me with a while loop..i have been looking at this for hours and dont no wut to do.. i have to make a menu style.. to have a beeter understanding i have linked a photo at the bottom... http://www.mypicx.com/uploadimg/772204432_08022011_1.pngand then ... (1 Reply)
Discussion started by: beerpong1
1 Replies

7. Homework & Coursework Questions

shell scripting while loop lab 15 help

hi.. this is shell scripting lab15.sh i dont understand this lab i am at the screen shot part. i was wondering if someone can take a quick look at this lab i have linked the doc below. i dont know where to start i have did the Required Errorlevels Errorlevel # but dont... (1 Reply)
Discussion started by: beerpong1
1 Replies

8. Shell Programming and Scripting

How to pass current year and month in FOR LOOP in UNIX shell scripting?

Hi Team, I have created a script and using FOR LOOP like this and it is working fine. for Month in 201212 201301 201302 201303 do echo "Starting the statistics gathering of $Month partitions " done But in my scripts the " Month " variable is hard-coded. Can you please any one... (3 Replies)
Discussion started by: shoan
3 Replies

9. Shell Programming and Scripting

If else condition inside for loop of awk command in UNIX shell scripting

Hi , Please excuse me for opening a new thread i am unable to find out the syntax error in my if else condition inside for loop in awk command , my actual aim is to print formatted html td tag when if condition (True) having string as "failed", could anyone please advise what is the right... (2 Replies)
Discussion started by: karthikram
2 Replies

10. Shell Programming and Scripting

How to get the for loop output from a remote server in UNIX shell scripting?

Hi, I am using ksh , when i try to use for loop i am getting the expected output. $for variable in $(ps -fu user | grep -i something/ | grep -i something | grep -v grep | awk '{print $2}');do > grep $variable /tmp/some_path/*/* > done when tried the below to remote server, getting... (4 Replies)
Discussion started by: karthikram
4 Replies

LEARN ABOUT MOJAVE

cpanplus::shell

CPANPLUS::Shell(3pm)					 Perl Programmers Reference Guide				      CPANPLUS::Shell(3pm)

NAME

       CPANPLUS::Shell - base class for CPANPLUS shells

SYNOPSIS

	   use CPANPLUS::Shell; 	    # load the shell indicated by your
					    # config -- defaults to
					    # CPANPLUS::Shell::Default

	   use CPANPLUS::Shell qw[Classic]  # load CPANPLUS::Shell::Classic;

	   my $ui      = CPANPLUS::Shell->new();
	   my $name    = $ui->which;	    # Find out what shell you loaded

	   $ui->shell;			    # run the ui shell

DESCRIPTION

       This module is the generic loading (and base class) for all "CPANPLUS" shells. Through this module you can load any installed "CPANPLUS"
       shell.

       Just about all the functionality is provided by the shell that you have loaded, and not by this class (which merely functions as a generic
       loading class), so please consult the documentation of your shell of choice.

BUG REPORTS

       Please report bugs or other issues to <bug-cpanplus@rt.cpan.org<gt>.

AUTHOR

       This module by Jos Boumans <kane@cpan.org>.

COPYRIGHT

       The CPAN++ interface (of which this module is a part of) is copyright (c) 2001 - 2007, Jos Boumans <kane@cpan.org>. All rights reserved.

       This library is free software; you may redistribute and/or modify it under the same terms as Perl itself.

SEE ALSO

       CPANPLUS::Shell::Default, CPANPLUS::Shell::Classic, cpanp

perl v5.18.2							    2014-01-06						      CPANPLUS::Shell(3pm)
All times are GMT -4. The time now is 09:22 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy