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Full Discussion: Handling tape errors in script
Top Forums Shell Programming and Scripting Handling tape errors in script Post 302777809 by Corona688 on Friday 8th of March 2013 11:53:51 AM
Old 03-08-2013
Quote:
Originally Posted by landog
Thanks!

What if the stderr message is this:
Code:
backup: 0511-089 Cannot open /dev/rmt0: The input or output media is write-protected.
Mount volume 1 on /dev/rmt0.
        Press Enter to continue

Would it just hang as no one could "Press Enter" ?
When your script is run from cron, it has nothing to read ENTER from -- no terminal. When the utility tries to read, it will get EOF or some sort of error, and probably quit. A badly-coded program might go into an infinite loop though.

A well-coded program could even tell that it has no terminal, and not bother trying.
This User Gave Thanks to Corona688 For This Post:
landog
 

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LEARN ABOUT DEBIAN

filetraq

FILETRAQ(8)						      System Manager's Manual						       FILETRAQ(8)

NAME

       filetraq - keep track of changes in config files.

SYNOPSIS

       filetraq --help
       filetraq [filelist] [backupdir]

DESCRIPTION

       This  manual  page  documents briefly the filetraq command.  This manual page was written for the Debian GNU/Linux distribution because the
       original program does not have a manual page.

       FileTraq is a shell script that reads a list of files to watch, runs diff against each file and its backup, and reports any  discrepancies,
       along with keeping a dated backup of the original.

       It's designed to be run as a cron job.

OPTIONS

       This command has two possible invocations, one with one option:

       --help Show summary of options and the default values of the config file and the backup directory.

       and other with no options, a config file or a config file and the backupdir.

       The  debian  version has been modified to read the /etc/default/filetraq configuration file, that lets the administrator change the default
       values of the config file ( file ), the backup directory ( backupdir ), the diff options used to print the filetraq  output  (  diffopts  ,
       e.g.  -p -C 1 or -u ) and the diff order ( difforder , either newold (FileTraq default) or oldnew (traditional Unix default)).

SECURITY

       FileTraq  is  not  well	tested	or hardened.  It runs as root, but all of its config files should only be accessible by root.  No security
       holes are known at this time, but please be careful.

BUGS

       Right now, it doesn't take care of its backups very well.  The dated backups will accumulate in the  backups  directory,  bounded  only	by
       diskspace.

       It only handles text files, it isn't a Tripwire replacement for use with system binaries.

FILES

       /etc/filetraq.conf
       /etc/default/filetraq
       /var/lib/filetraq

SEE ALSO

       diff(1), cron(8).

AUTHOR

       Jeremy Weatherford <xidus@xidus.net>
       Homepage: http://filetraq.xidus.net/

       This manual page was written by Sergio Talens-Oliag <sto@debian.org>, for the Debian GNU/Linux system (but may be used by others).

								     June 2001							       FILETRAQ(8)
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