Sponsored Content
Top Forums Shell Programming and Scripting Script sometimes creates an empty file Post 302546086 by reid on Wednesday 10th of August 2011 10:49:25 AM
Old 08-10-2011
Script sometimes creates an empty file

I have a script that runs ditto for me, and occasionally (if I exit the script while ditto is running in the background) it will leave an empty file named 0 in the script's directory. The next time I run the script, it generates incorrect data because of this file. I know I can easily insert a check for this file and delete it, but does anyone know what this is and why it happens?

Thanks.
 

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

sed in script creates output file ending with '?' (^M)

Hi, I'm trying to use sed within a shell script (bash, running ubuntu). The command works fine from the command line, but when I use it within the script, rather than creating a file with the name I've specified, it creates one that ends with a question mark '?' when you use ls, e.g.... (3 Replies)
Discussion started by: jennykay
3 Replies

2. Shell Programming and Scripting

awk script creates empty line

I have the following awk script to which I pass the file > 10 0 0 10 0 0 > 12.997 0 5.71132 12.9098 0.0687626 5.48855 12.7506 0.174324 5.13225 12.5913 0.262662 4.80643 12.4316 0.335652 4.50283 12.2717 0.394598 4.21542 12.1113 0.440399 3.93957 11.9506 0.473646 3.67148 11.7894... (2 Replies)
Discussion started by: kristinu
2 Replies

3. Shell Programming and Scripting

Script sometimes creates an empty file

I have a script that runs ditto for me, and occasionally (if I exit the script while ditto is running in the background) it will leave an empty file named 0 in the script's directory. The next time I run the script, it generates incorrect data because of this file. I know I can easily insert a... (1 Reply)
Discussion started by: reid
1 Replies

4. Shell Programming and Scripting

Script that creates directory structure

Hi All, I have a script that does daily checks on my storage environment and is run from an AIX host. The script currently works great but I have been changing and updating bits of it to make it easier for my lesser colleagues to understand :p However now with the updates I have made I... (1 Reply)
Discussion started by: colinwilson1303
1 Replies

5. UNIX for Dummies Questions & Answers

Redirection creates empty file

I'm using a script that does some modifications to data on disc and updates the database. The script (perl) uses STDOUT so the results are printed to the screen. I don't have permissions to modify the script. I want to capture the results in a file so I can see if errors occurred and also keep... (3 Replies)
Discussion started by: surib
3 Replies

6. Shell Programming and Scripting

Lock file creates with '?'

Hi, I am trying to create a lock file with the following code but for some reason after file is created it has wrong name "PASP?.lock??" Please let us know how to get rid of these '??' from file name and from where they are coming? #!/bin/ksh... (6 Replies)
Discussion started by: sandy162
6 Replies

7. Shell Programming and Scripting

Writing a script that creates a 1GB file with zeros using dd

I am new to Linux. Using latest version of Ubuntu. I want to make a script that creates a 1GB file filled with zeros using dd and then formats the file as vfat with a label of "MYFILE". If anyone can help me it would be appreciated. (9 Replies)
Discussion started by: paviter619
9 Replies

8. Red Hat

Script creates additional file

Hi, I have created a test script like this : # cat script1.sh DAY=$(date +%d) MONTH=$(date +%b) YEAR=$(date +%Y) BC01="Blast_BC01" BC15="Blast_BC15" DIR1="$MONTH$YEAR_$BC01" DIR2="$MONTH$YEAR_$BC07" DIR3="$MONTH$YEAR_$BC15" if ;then mkdir -p "$YEAR/$DIR3" fi # When I... (5 Replies)
Discussion started by: anaigini45
5 Replies

9. Shell Programming and Scripting

Writing a script that creates a 1GB file with zeros using dd

I am new to Linux. Using latest version of Ubuntu. I want to make a script that creates a 1GB file filled with zeros using dd and then formats the file as vfat with a label of "MYFILE". If anyone can help me it would be appreciated. (1 Reply)
Discussion started by: amandasaza08
1 Replies
MAKESH(1)                                                     General Commands Manual                                                    MAKESH(1)

NAME
makeSH - a .SH script maker SYNOPSIS
makeSH files DESCRIPTION
MakeSH examines one or more scripts and produces a .SH file that, when run under sh, will produce the original script. The .SH script so produced has two sections containing code destined for the output. The first section has variable substitutions performed on it (taking values from config.sh), while the second section does not. MakeSH does not know which variables you want to have substituted, so it puts the whole script into the second section. It's up to you to insert any variable substitutions in the first section for any values you want from config.sh. You should run makeSH from within your top-level directory and use the relative path to the file as an argument, so that the "Extracting ..." line printed while running the produced .SH file later on will give that same path. AUTHOR
Larry Wall <lwall@netlabs.com> SEE ALSO
pat(1), metaconfig(1), makedist(1). BUGS
It could assume that variables from metaconfig's Glossary need to be initialized in the first section, but I'm too lazy to make it do that. LOCAL MAKESH(1)
All times are GMT -4. The time now is 01:41 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy