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Top Forums UNIX for Dummies Questions & Answers Shell Question Post 302330303 by dswz on Tuesday 30th of June 2009 07:37:21 PM
Old 06-30-2009
Shell Question

Hi All,

I am having this problem and I can't find a decent answer anywere.
I'am trying to perform multiple command in a shell script.

For example
Code:
mkdir test
tar cvzf test.tar.gz test/
rmdir test

The problem I get is that if I run this file as a cronjob, with a big "test" folder; the rmdir is making targz incomplete.

I've been using the sleep command to stretch the amount of time so that the tar command has time enhough to finish, but I would like to make it more flexible.

What is the best way to do this.. I know the "command1 && command2" option but the backupscript I am trying to make is multiline..
Also tried:

Code:
command1 &
command2 &
command3

I am a shell beginner, but not a beginning programmer..

Any help appreciated. I will post my code if someone's interested.

Daniel
 

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BF_TAR(1)																 BF_TAR(1)

NAME
bf_tar - shell script to write a tar file of a bogofilter directory to stdout SYNOPSIS
bf_tar [-r] [-R] bogofilter_directory DESCRIPTION
bf_tar bundles a bogofilter working directory in tar format and copies it to standard output (your console, or where you redirect it, see EXAMPLES below). OPTIONS
The -r option causes bf_tar to remove inactive log files after the archive has been written successfully. The default is to leave log files. The -R option causes bf_tar to remove inactive log files before the archive is written. This may reduce chances that the resulting archive is recoverable should it become damaged. The archive may be smaller though. The default is to leave log files. EXIT STATUS
The script exits with status code 0 if everything went well, and nonzero if it encountered trouble. EXAMPLES
o bf_tar ~/.bogofilter > outfile.tar Writes a standard .tar file containing the essential files from ~/.bogofilter to outfile.tar. o bf_tar ~/.bogofilter | gzip -9 -c > outfile.tar.gz Writes a gzipped .tar.gz file containing the essential files from ~/.bogofilter to outfile.tar.gz. o bf_tar `pwd`/mydirectory > outfile.tar Prepend $(pwd)/ or `pwd`/ if you want to specify an absolute path instead of a relative path. NOTES
This script is meant for use with Berkeley DB based bogofilter versions. This script requires a SUSv2 compliant pax utility. This script expects a SUSv2 compliant shell. Solaris systems should have the SUNWxcu4 package installed (when bogofilter is configured) so that /usr/xpg4/bin/sh can be used. 07/23/2007 BF_TAR(1)
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