programming logic required

sysmicuser · 05-09-2013, 01:21 AM

Guys,

I need some help here. I have a directory which has "x" no of files.

For each file it has data separated by "," !!! wow !! that is nice , we got delimiter now that makes life easy !!!
Now all what I want to do is any row(each row has 6 fields separated by ",") if it has 3 rd field as "abcdefgh" then I want to send that file as an attachment to user.

I have implemented the logic but it seems it send emails(spam) but all i want is just one email with that file(sending with uuencode).

Here is the code.

Code:

cd $BASE_DIRECTORY

for i in $(find $BASE_DIRECTORY -type f -mtime -7)
do
while IFS="," read -r rec1 rec2 rec3 _
do
if [[ "$rec3" == "abcdefgh" ]]; then
        echo -e "$i is the requested file"
        uuencode $i $i|mailx -s "Invalid record $i file" test@testme.com
else
        echo "file $i is fine and does not need to sent"
fi
done<$i
done

Ygrex · 05-09-2013, 01:37 AM

probably «break» just after mailx?

sysmicuser · 05-09-2013, 01:57 AM

@Ygrex

Thank you ! It did worked. Anything else cool stuff or smart thing we can do make script faster? or anything cool thing which you can think at this stage?

unSpawn · 05-09-2013, 03:07 AM

I prefer using 'mpack':

Code:

#!/bin/sh --
# Set debug mode when testing:
# set -vx
# Set default behaviour:
LANG=C; LC_ALL=C; export LANG LC_ALL
[ -z "${BASE_DIRECTORY}" ] && exit 127; cd "${BASE_DIRECTORY}" || exit 127
find "${BASE_DIRECTORY}" -type f -mtime -7|while read ITEM; do
 RES=$(awk -F',' '{if ($3 == "abcdefgh") print}' "${ITEM}")
 [ ${#RES} -eq 0 ] || mpack -s "Invalid record in \"${ITEM}\"" \
  "${ITEM}" test@testme.com
done
exit 0

pan64 · 05-09-2013, 03:38 AM

grep -l <pattern> <filelist> will give you the name of those files, pattern will look like:
^[^,]*,[^,]*,abcdefgh,

sysmicuser · 05-09-2013, 03:57 AM

@unSpawn

Pretty down, shame we don't have mpack any other better alternative you can think of?

sysmicuser · 05-09-2013, 03:58 AM

unSpawn.

Impressed, I have never such a code before, can you explain every line of it?(f you don't mind?)

pan64 · 05-09-2013, 04:06 AM

sorry, I have no time to test it, but probably something like this:

Code:

grep -lR <pattern> "${BASE_DIRECTORY}" | xargs -n 1 send_mail
function send_mail
{ 
    uuencode $1 $1|mailx -s "Invalid record $1 file" test@testme.com

}

unSpawn · 05-09-2013, 04:10 AM

Quote:

Originally Posted by sysmicuser

Pretty down, shame we don't have mpack any other better alternative you can think of?

Don't have, can't find or not allowed to install?

Quote:

Originally Posted by sysmicuser

can you explain every line of it?

Sure:

Code:

# This is just a hedge as some tools tend to produce unexpected output if those environment variables are set differently:
LANG=C; LC_ALL=C; export LANG LC_ALL
# If the variable is empty then exit with a distinctive exit value:
[ -z "${BASE_DIRECTORY}" ] && exit 127
# If we can't cd into that directory then exit with a distinctive exit value:
cd "${BASE_DIRECTORY}" || exit 127
# Most of the time using a "while" loop is preferable [0]:
find "${BASE_DIRECTORY}" -type f -mtime -7|while read ITEM; do
 # Using the comma as separator check the third value for that string
 # and fill the variable with it.
 RES=$(awk -F',' '{if ($3 == "abcdefgh") print}' "${ITEM}")
 # if the variable isn't empty then do something with it:
 [ ${#RES} -eq 0 ] || mpack -s "Invalid record in \"${ITEM}\"" \
  "${ITEM}" test@testme.com
done
# Always exit nicely:
exit 0

0) http://mywiki.wooledge.orgDontReadLinesWithFor
1) Other common questions / problems:
http://mywiki.wooledge.org/ParsingLs
http://mywiki.wooledge.org/UsingFind
http://mywiki.wooledge.org/Arguments
http://mywiki.wooledge.org/WordSplitting
http://mywiki.wooledge.org/Quotes

sysmicuser · 05-09-2013, 06:40 PM

@unSpawm.

How to do if I want to exit at the same time echo message and send it via email? means in addition to exit I want to echo some message and send some critical email. How to do?

---------- Post added 05-10-13 at 09:40 AM ----------

@unSpawn.

Not installed on our box.

sysmicuser · 05-09-2013, 06:42 PM

thank you pan64

unSpawn · 05-13-2013, 01:29 AM

Quote:

Originally Posted by sysmicuser

How to do if I want to exit at the same time echo message and send it via email?

You could simply?

Code:

if [ "${CONDITION}" = "match_this_condition" ]; then
 echo "Urgent message" | mail -s "Urgent" test@testme.com[B]
 exit 1
fi

sysmicuser · 08-14-2013, 11:24 PM

Thank you unSpawn