Shell Programming and Scripting

GREP FILE for the word ABENDED
IF word ABENDED found
THEN
    IF FLAG EXIST
    THEN EXIT
    ELSE MAIL USER, TOUCH FLAG
ELSE EXIT

if grep ABENDED filename >/dev/null && [[ ! -f flagfile ]]
then
     mail -s subject user@example.com <<EOF
mailbody
EOF
    touch flagfile
fi

#!/bin/bash
temp_val=`awk '{print $1}' tempfile`
current_val=`grep -n ABENDED inputfile | tail -1 | awk -F: '{print $1}'`
if [ "$current_val" -gt "$temp_val" ]; then echo "Mail syntax"; else echo "Alert sent already"; fi
echo "$current_val" > tempfile

 
current_val=`grep -n ABENDED inputfile | tail -1 | awk -F: '{print $1}'` 
to
current_val=$( awk '/ABENDED/ {val=NR} END{print val}' inputfile )

 
bash-3.00$ cat test
a
b
c
d
e
f
g
h
bash-3.00$ nawk '/c/{val=NR} END{print val}' test
3
bash-3.00$ echo "c" >> test
bash-3.00$ !nawk
nawk '/c/{val=NR} END{print val}' test
9
bash-3.00$ cat -n test
     1  a
     2  b
     3  c
     4  d
     5  e
     6  f
     7  g
     8  h
     9  c