Shell Script not showing accurate Time Stamp and Size

Shell Programming and Scripting
1

Hey guys - I have made this script and for some reason, I dont see time stamp as "Month-Day-YYYY Hours-Mins" - all i see is Month and Day.

Also, my file size is approximated. For example, if the size is 19,606KB - the script shows as 20M. Is there a way to see the exact file size?

How do i accomplish the above tasks?

#!/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 dir2"

FILE="file 1 file 2"



#############################

# 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 ]; 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@nowhere.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
2

If you need see the real size, change below line: (in fact I don't prefer the cut command)

FILE_SIZE=$(du -sh $1 | cut -f1)

to

FILE_SIZE=$(ls -l $1 | cut -d" " -f5)

and leave this for you to update by yourself. below line used for file time, which shows only Month and day.

FILE_TIME=$(ls -l $1| cut -d" " -f6,7)
3

The timestamp info for ls will change to drop the HH:MM info after six months. It will then read the YYYY stat for the file in question.

rdcwayx is correct to advise you pick the proper column for the file size out of ls, unless your original intention with du was to give a 'human readable' file size... You can still get the file stat info to indicate the real time stamp, but you'd need to dig harder to get it.