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Full Discussion: Mail sent from variable is not aligned in shell script
Top Forums Shell Programming and Scripting Mail sent from variable is not aligned in shell script Post 302997574 by Don Cragun on Tuesday 16th of May 2017 05:34:50 PM
Old 05-16-2017
And for the part of your previous post asking about filesystem mount order...
Quote:
Originally Posted by viay
Hello Don,

... ... ...
1.)
Note, however, that if a mounted filesystem is ever unmounted or a new filesystem is mounted between runs of your script, there is no guarantee that the order of the percentage values stored in the arrays usep and usep1 are in the same order!

Is their any solution for this?
Use associative arrays instead of indexed arrays for the percentages (using the filesystem mount point as the subscript). I don't have access to a 4.x version of bash so, this is totally untested, but it should come close to what you need (including the previously suggested HTML mail body changes) and run faster (since all of the invocations of awk and cut are gone):
Code:
export maillist=abc@gmail.com;
#df -PH /d04 /d05 /u01 /export | grep -vE '^Filesystem|none|cdrom'|awk '{ print $5 " " $6 }' | while read output;
df -PH | grep -vE '^Filesystem|none|cdrom|swdepot'|awk '{ print $5 " " $6 }' > $HOME/monitor/diskcheck.log;

unset usep usep1
declare -A usep usep1

if [ -s "$HOME/monitor/log/disk_alert.log" ]; then
  #Getting variables and compare with old
  while read -r pct fs
  do	pct=${pct%\%}
	usep["$fs"]=$pct
	printf '%s(%s) ' "$fs" "$pct"
  done < "$HOME/monitor/diskcheck.log"
  echo
  while read -r pct fs
  do	pct=${pct%\%}
	usep1["$fs"]=$pct
	printf '%s(%s) ' "$fs" "$pct"
  done < "$HOME/monitor/log/disk_alert.log"
  echo
else
  cp "$HOME/monitor/diskcheck.log" "$HOME/monitor/log/disk_alert.log"
  # Note that if disckcheck.log and disk_alert.log are identical, usep[$i] can
  #   never be greater than usep1[$i], so we might as well quit now.
  exit
fi

unset alertlist
for fs in ${!usep[@]}; do
        if [ ${usep["$fs"]} -gt 80 ]; then
                if [ ${usep["$fs"]} -gt ${usep1["$fs"]} ]; then
                        # Temp to store current percentage diff and partition to store in a variable.
                        tmp="$(echo -e "Running out of space \"$i (${usep["$fs"]}%%)\" on $(hostname) as on $(date)")";
                        echo "$tmp"
                        #tmp=$(printf "%s\n" "(${usep["$fs"]}%%) percent used on $i");
                        alertlist=("${alertlist[@]}" "$tmp")
                fi
        fi
done

if [ ${#alertlist} -gt 0 ]; then
	{ echo '<HTML><BODY>'
	  printf '%s<br />\n' "${alertlist[@]}"
	  echo '</HTML></BODY>'
	} | mail -s "ALERT:  Running out of space" $maillist
	echo "Following text sent as body of mail to $maillist:"
	printf '%s\n' "${alertlist[@]}"
fi

 

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