Concat strings in unix using multiple variables

In my shell script I am trying to get a subject line (string)

I have already:
today_dt=`date +%m%d%Y`

I need to create a string $mysubjectline = "Files for" + today_dt +"for PROJECT1"

and then do :
#tar -cvf dailyfiles.tar file1.html file2.csv  
#uuencode dailyfiles.tar dailyfiles.tar | mail -s $mysubjectline tom.dick@harry.com

Whats the best way to concat my string with the date variable and use in subjectline
LuckyLucksAsked:
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kevin_uCommented:
today_dt=`date +%m%d%Y`
mysubjectline="Files for $today_dt for PROJECT1"
tar -cvf dailyfiles.tar file1.html file2.csv  
uuencode dailyfiles.tar dailyfiles.tar | mail -s "$mysubjectline" tom.dick@harry.com

variables are expanded inside of double quoted strings, so concatenation is not usually needed.

I also put quotes around $mysubjectline so that the multiple words in the subject are treated as one argument to the -s option of mail.
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omarfaridCommented:
the script below will do the job

#!/usr/bin/ksh
today_dt=`date +%m%d%Y`
tar -cvf dailyfiles.tar file1.html file2.csv  
uuencode dailyfiles.tar dailyfiles.tar | mail -s "Files for $today_dt for PROJECT1" tom.dick@harry.com

no need for this line since it could be put directly as the subject of mail

mysubjectline="Files for $today_dt for PROJECT1"
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Shell Scripting

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