Shell script check if file exists?

Question

I wrote a simple backup script which back ups my stuff on a remote server, everything is working great but I'd like to have some sort of report like "backup successful or not".

this is my script

# backup CHECK
date1=`date +"%d.%m.%y - %H.%M"`
host=`hostname`
twdate=`date +"%d.%m"`
performtw=`ls -la|grep "tw"|grep "$twdate" > tmp1.txt`
echo $performtw
if
cat tmp1.txt|grep "tw"
then
echo backup successfull
printf "tw backup success!" | mail -s "tw backup check $date1 repor$
rm tmp1.txt
else
echo backup failure
printf "sitename backup failure!" | mail -s "site backup check $date1 repor$
rm tmp1.txt
fi
exit

But this isn't working really well and I ask you if there's some simpler and more powerful way to do it? Basically it just needs to check if file exists with the name starting xyz and was created at date xyz.

Answer 1

You could use a nice bash conditional execution to see whether the file exists or not...

[ -f tmp1.txt ] && echo "Found" || echo "Not found"

Alternatively you could use the find command with the -newer flag...

find /some/dir -type f -newer $startdate -not -newer $enddate