cat: write error: Connection reset by peer


 
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# 1  
Old 03-30-2011
cat: write error: Connection reset by peer

I have created a script to cat the contents of a log file and pipe it to head and tail so I can get specific lines.

When I do this I sometimes randomly get the error

"cat: write error: Connection reset by peer". It is completely sporatic and sometimes it doesnt happen and sometimes it does but it means therefore the output of the script is unreliable.

Here is the code I am using where tmpfile is the name of the file im cat'ing and errorstartline is the line number in the file I want to load into the "line" variable.

line=`cat $TMPFILE | head -$ERRORSTARTLINE | tail -1`

I initially thought this was because the TMPFILE was on another mount so I added some code to cp the file to the same dir as the script and then cat but it made no difference.

Has anyone seen this error or can anyone recommend an alternative way of getting a specified line out of the log file. The log file isnt that large I dont think so not sure why I am seeing this issue.
# 2  
Old 03-30-2011
Quote:
Has anyone seen this error or can anyone recommend an alternative way of getting a specified line out of the log file. The log file isnt that large I dont think so not sure why I am seeing this issue.
Maybe it's better if you use grep or sed.
# 3  
Old 03-30-2011
Thanks for suggestion. Do you have an example at all ?
# 4  
Old 03-30-2011
grep <string> $TMPFILE

cat $TMPFILE | sed '/<string>/!d'

cat $TMPFILE | sed -n '#p' ---> # refers to the line number
# 5  
Old 03-30-2011
Long shot. No problem with the variable $TMPFILE that I know of but does the script contain $TMPDIR - a reserved variable which will affect the placement of temporary files?
Or is $TMPDIR set and points to a temporary mount?
 
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