Shell Script with Grep

Shell Programming and Scripting
1

Hi guys - below is my script that is checking for current file, size and timestamp.

However I added a "grep" feature in it (line in red), but not getting the desired result.

I am trying to acheive in output:

  1. Show me the file name, timestamp, size and grep'ed words

It would be a good message, if all of the words are found and file is from todays date and has a size above 0KB.

It would be a error message, if either both words are not found OR even one of them is not found, file is not found, file is old or is 0KB.

#!/bin/bash
# setting default path
PATH="/usr/bin:/bin:/usr/sbin"
NOW=$(date +"%Y-%m-%d")
LOG_FILE=/tmp/myemail.txt
FILE_NOT_FOUND="/tmp/missingfiles.txt"
CURRENT_FILE="/tmp/currentfiles.txt"
OLD_FILE="/tmp/oldfiles.txt"
# make sure we create a new copy of these files
rm -f $LOG_FILE $FILE_NOT_FOUND $CURRENT_FILE $OLD_FILE
# List the directories and files to process.
DIR="/dir1/system2/rie-share"
FILE="IUYhkTC`date '+%m%d%Y'`*.txt"
 
#############################
# Define functions
#############################
 
function checkStat
{
    # make sure stat command is installed
    which stat > /dev/null 2>&1
    if [ $? -eq 1 ]; then
        echo "stat command not found!"
        exit 2
    fi
}
 
function processFile
{
    if [ -s ${1} ]; then
        VAR="$(stat -c %y ${1})"
        VAR2="${VAR:0:10}"
        FILE_TIME=$(ls -l $1| cut -d" " -f6,7)
        FILE_SIZE=$(du -sh $1 | cut -f1)
        if [ $NOW == $VAR2 ] && grep -E -i "login|Successfully" ${1} > /dev/null; then
                echo "Current File Found: ${1} $FILE_TIME - SIZE $FILE_SIZE" | tee -a ${CURRENT_FILE}
        else
            erroremail=1
            echo "Old File Found: ${1} $FILE_TIME SIZE - $FILE_SIZE" | tee -a ${OLD_FILE}
        fi
    else
        erroremail=1
        echo "File Not Found: ${1}" | tee -a ${FILE_NOT_FOUND}
    fi
 
}
 
#############################
# Main
#############################
 
# Verify the stat command exists
checkStat
 
# Create log file
touch  ${LOG_FILE}
 
# Process the files
for d in ${DIR[@]}; do
    for f in ${FILE[@]}; do
        processFile "${d}/${f}"
    done
done
 
#############
#Email
#############
 
if [ $erroremail -eq 1 ] ; then
       SUBJECT="ERROR: File Problem"
else
       SUBJECT="OK: File Current"
fi
# lets populate the sendmail files
echo "To:someone@somewhere.com" >>$LOG_FILE
echo "Subject:$SUBJECT" >> $LOG_FILE
# Append list of current files to Email body
# Make sure we display error message only once
error_display=false
# Append list of old files to Email body
if [ -s $OLD_FILE ]; then
        echo "*********************ERROR MESSAGES********************" >> $LOG_FILE
        error_display=true
        echo "List of old files" >> $LOG_FILE
        cat $OLD_FILE >> $LOG_FILE
fi
# blank lines between two data
echo >> $LOG_FILE
echo >> $LOG_FILE
# Append list of missing files to Email body
if [ -s $FILE_NOT_FOUND ]; then
        if [ "$error_display" = "false" ]; then
                echo "*********************ERROR MESSAGES********************" >> $LOG_FILE
        fi
        echo "List of missing files" >> $LOG_FILE
        cat $FILE_NOT_FOUND >> $LOG_FILE
fi
# blank lines between two data
echo >> $LOG_FILE
echo >> $LOG_FILE
if [ -s $CURRENT_FILE ]; then
        echo "****************GOOD MESSAGES*************************" >> $LOG_FILE
        echo "List of current files" >> $LOG_FILE
        cat $CURRENT_FILE >> $LOG_FILE
fi
 
# send an email using /sbin/sendmail
sendmail -t < $LOG_FILE
if [ $? -eq 0 ]; then
        echo "Sent mail successfully"
else
        echo "Error sending mail"
fi
# cleanup files
rm -f   $LOG_FILE $FILE_NOT_FOUND $CURRENT_FILE $OLD_FILE

This is the output error i get:

./orcheck.sh: line 52: [: "/dir1/system2/rie-share/IUYhkTC`date '+%m%d%Y'`*.txt: binary operator expected
File Not Found: "/dir1/system2/rie-share/IUYhkTC`date '+%m%d%Y'`*.txt
Sent mail successfully

Notice my file name that is being searched. It has the date in its name and a randomly changing number followed by the date.

Thanks

2 
if [ $NOW == $VAR2 ] && grep -E -i "login|Successfully" $filename > /dev/null; then

check if this works

3

same error.