Script with lsof works well on shell not on cron
from your working cmd-line, do
which lsofwhich grepwhich wcwhich dateTake the full paths for each of these commands and add them into your shell script, producing something like
/bin/echo "Timestamp: `/bin/date +"%m-%d-%y %T"` Files: `/usr/sbin/lsof | /bin/grep app | /bin/wc -l`"OR you can set a PATH var to include the missing values in your script, i.e.
PATH=/usr/sbin:${PATH}Also unless you expect your script to be run from a true Bourne Shell environment, join the early 90's and use the form $( cmd ... ) for cmd-substitution, rather than backticks. The Ksh 93 book, published in 1995 remarks that backticks for command substitution are deprecated ;-)
IHTH