Shell Programming and Scripting

#!/bin/bash
F=eai_js_348.csv
D=dm_eai_348.csv
cat > $F << EOF # Write a header to the file $F
Timestamp             BRM Servers
                           348
EOF
cat > $D << EOF # Write a header to the file $D
Timestamp             BRM Servers
                           348
EOF
# Write data every 1800 seconds.
while sleep 1800; do
    date +'%m/%d/%Y %H:%M' | tr -d \\n >> $F
    printf '          ' >> $F
    netstat | grep 16001 | wc -l >> $F
    date +'%m/%d/%Y %H:%M' | tr -d \\n >> $D
    printf '          ' >> $D
    ps -ef | grep -i DM_EAI | wc -l >> $D
done

$ printf "%s\t\t%s", $(date +'%m/%d/%Y %H:%M), $(netstat | grep 16001 | wc -l)  > $F