First post here, so hopefully all guidelines are followed, and thanks in advance for any replies.

I'm working on a shell script(BASH) that processes a csv file and performs various tasks with the data. All is well, except I want to use 'tee' to send output from 'wc' to a file as well as pipe it to 'cut'. What I'm trying to accomplish is a) tally the record count from a list of files, and b) send the details of 'wc' to an output file.

This code successfully tallies the record count, but obviously isn't sending the output from 'wc' to an output file:

#!/bin/bash	
unset vCount verifyRecordCount
vCount=0
verifyRecordCount=0
   
outfile="./test2a.out"	
EXTRACT_FILES=`ls -d ./*`

for filename in ${EXTRACT_FILES}
do
   `wc -l $filename >> $outfile` 
   vCount=`wc -l $filename | cut -d" " -f1`
   echo "vCount="$vCount>>$outfile
   ((verifyRecordCount=verifyRecordCount+${vCount}))
done
echo "verifyRecordCount="$verifyRecordCount>>$outfile

#
# again, with feeling
#
unset vCount verifyRecordCount
vCount=0
verifyRecordCount=0
   
outfile="./test2b.out"
EXTRACT_FILES=`ls -d ./*`

for filename in ${EXTRACT_FILES}
do
   `wc -l $filename >> $outfile` 
   #vCount=`wc -l $filename | cut -d" " -f1`
   vCount=`wc -l $filename | tee >>$outfile | cut -d" " -f1`
   echo "vCount="$vCount>>$outfile
   ((verifyRecordCount=verifyRecordCount+${vCount}))
done
echo "verifyRecordCount="$verifyRecordCount>>$outfile
cat $outfile

You've used 'tee' without giving it any filenames, which is effectively the same as 'cat'. The one file it writes by default, stdout, you've redirected to a file, leaving nothing left for cut to get.

If you want tee to actually put the output into several files, don't redirect it, just tell which file you want

... | tee -a filename | ...

wc -l < input > output
read NUMBER <output

doh! I did specify a filename, but used redirect rather than simply let 'tee' do what it does.

Thanks a ton, Corona. This was driving me nuts

Try this:

vCount=`wc -l < $filename | tee -a $outfile`

Thanks, but I wanted the names of the files included in the details. Your suggestion added only the record count, but not the name of the file. Here's the final segment of code that worked:

do
  vCount=`wc -l $filename | tee -a $outfile | cut -d" " -f1`
  ((verifyRecordCount=verifyRecordCount+${vCount}))
done
echo "Total Record Count in Files: "$verifyRecordCount>>$outfile