Shell Programming and Scripting

Hi all. Im trying to use a sequence in a while loop like this below. I need it for navigating a year, month, day folder structure where a user can input the start date and have it go to the desired end date. The script will grab a certain file on each day then move onto the next. Ive got all that worked out using a static set of years in a for loop rather then a while loop with a seq. The problem is when I run into the month andn day folders as they are 01 02 03..10 11. Using the + 1 method it wont cd to the folders below 10 because the var is 1 2 3 instead of 01 02 03. Is there a way to make it add the zero to values below 10 but still keep count?

Code:

startdate=1
enddate=12
a=$startdate
if [ $a -lt 10 ]
   then a=0$a
   fi
 
while [ $a -lt $enddate ]
   DO OTHER THINGS HERE
   startdate=`expr $startdate + 1`
   a=$startdate
if [ $a -lt 10 ]
   then a=0$a
   fi
   done

Seems like your code is working fine, albeit with some slight modifications. Try to incorporate the changes and let me know the result.

Your code, modified slightly:

Code:

 
$ cat file2
startdate=1
enddate=12
a=$startdate
if [[ $a -lt 10 ]]
   then a=0$a
   fi
while [ $a -le $enddate ] ## Changed -lt to le
do
   ##DO OTHER THINGS HERE
   printf "\na=${a}\n\n"
   startdate=`expr $startdate + 1`
   a=$startdate
   if [ $a -lt 10 ]
     then a=0$a
   fi
done
$

OUTPUT:

Code:

 
$ ./file2
a=01

a=02

a=03

a=04

a=05

a=06

a=07

a=08

a=09

a=10

a=11

a=12
 
$

HTH,


Regards,

praveen

Thanks that works for me!

Hi, maybe You should consider the seq command?

Code:

for x in $(seq -w 12); do
...
done

/Lakris