Shell Programming and Scripting

record_count_threshold=20
cd /usr/apps/data/output
ls -d *ROUTE* | while read line
do
echo "$line: `ls -ltr $line | grep -v DONE | wc -l`"
done > ${tmp_file}
echo
cat ${tmp_file} | awk '{if($2>'"${record_count_threshold}"'){print "Number of files backlogged: " $1 $2}}'

ls -d *ROUTE*|while read -r dir;do if [ $(ls -1 $dir|grep -Ev 'DONE|total'|wc -l) -gt 20 ] ; then 
echo "$dir $(ls -ltr $dir|grep -Ev 'DONE|total')" ; else echo "$dir --> NO BACKLOG" ; fi ; done

-gt

gt is greater than
-E use extended-regexp for grep

grep -Ev 'DONE|total'

egrep -v 'DONE|total'

uname -a

echo "${SHELL}"

# Parameters
record_count_threshold=20
# Create temporary file including current process ID "$$" in the file name. 
tmp_file=/tmp/mytmpfile_$$
touch "${tmp_file}"    # Ensure file exists. This stops the count process failing if there is no backlog.
#
# Processing starts here
#
cd /usr/apps/data/output
#
# Look for directory names containing the string "ROUTE".
# Allow for no match by redirecting STDERR 
ls -1d *ROUTE* 2>/dev/null | while read dir
do
     # Make sure that this is a directory
     if [ -d "${dir}" ]
     then
            # Look for file matches
            # Allow for no match by redirecting STDERR
            ls -1 "${dir}" 2>dev/null | grep -v "DONE" | while read filename
            do
                   # Is the match a file?
                   if [ -f "${filename}" ]
                   then
                            # Output the filename so we can count them
                            echo "${filename}"
                   fi
            done
     fi
done > ${tmp_file}
#
# Count the number of matching files
backlog=`cat ${tmp_file}|wc -l`
# Compare with threshold.   -gt means Greater Than.
if [ ${backlog} -gt ${record_count_threshold} ]
then
        echo "Number of files backlogged: ${backlog}"
else
        echo "NO BACKLOG"
fi
#
# Clean up temporary file
rm "${tmp_file}"

backlog=$( wc -l ${tmp_file} | cut -d\  -f 1 )