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Full Discussion: Question about tee command
Top Forums Shell Programming and Scripting Question about tee command Post 302965761 by Aia on Tuesday 2nd of February 2016 06:59:01 PM
Old 02-02-2016
Quote:
Originally Posted by calredd
Sorry, I wasn't clear. My issue is more to do with using the "tee" command which is causing the error checking (in the next if statement) to always pass regardless of the actual command whether it runs successfully or fails.
I understood your dilemma. That's why I gave that snippet. It is not only tee but for any chained commands: $? will report about the last command executed.

Is the following not your intention?
Code:
if [[ -s incoming.dat ]]; then
   echo "data from incoming.dat file as follows:"
   cat incoming.dat | tee -a execution.log
   echo "Execution Log" | mail -s "Log File" -a execution.log info@abc.com
else
   echo "Issue with incoming.dat: file not present or empty"
   exit 1
fi

This User Gave Thanks to Aia For This Post:
 

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

NAME
arpsnmp - keep track of ethernet/ip address pairings SYNOPSIS
arpsnmp [ -d ] [ -f datafile ] [ -s sendmail_path ] [ -m addr ] file [ ... ] DESCRIPTION
Arpsnmp keeps track for ethernet/ip address pairings. It syslogs activity and reports certain changes via email. Arpsnmp reads information from a file (usually generated by snmpwalk(8)). The -d flag is used enable debugging. This also inhibits mailing the reports. Instead, they are sent to stderr. The -f flag is used to set the ethernet/ip address database filename. The default is arp.dat. (Debian) The -s flag is used to specify the path to the sendmail program. Any program that takes the option -odi and then text from stdin can be substituted. This is useful for redirecting reports to log files instead of mail. (Debian) The -m option is used to specify the e-mail address to which reports will be sent. By default, reports are sent to root on the local machine. Note that an empty arp.dat file must be created before the first time you run arpsnmp. REPORT MESSAGES
(See the arpwatch(1) man page for details on the report messages generated by arpsnmp(1).) FILES
/var/lib/arpwatch - default directory arp.dat - ethernet/ip address database /usr/share/arpwatch/ethercodes.dat - vendor ethernet block list SEE ALSO
arpwatch(8), snmpwalk(8), arp(8) AUTHORS
Craig Leres of the Lawrence Berkeley National Laboratory Network Research Group, University of California, Berkeley, CA. The current version is available via anonymous ftp: ftp://ftp.ee.lbl.gov/arpwatch.tar.gz BUGS
Please send bug reports to arpwatch@ee.lbl.gov. Attempts are made to suppress DECnet flip flops but they aren't always successful. 4th Berkeley Distribution 17 September 2000 ARPSNMP(8)
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