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Read filenames in sorted order

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# 1  
Old 02-01-2012
Read filenames in sorted order
Hi ,
My requirement is to scan a directory for file names with LTR.PDF*
and send those files via ftp to another server one by one.

Now the the problem is file names are like LTR.PDF ,LTR.PDF1 ,LTR.PDF2.....LTR.PDF10..upto 99
and these needs to be sent in sorted order.
is there a way to get the files in sorted order based on file names in for loop

Code:
for file in $BASEDIR/output/$LTRNAMELTR.PDF*
do
# The following check is necessary; if no files end with ltr*.afp
# then $file will be assigned "ltr*.afp"
if [ ! -f $file ]
then
echo " No print LTR PDF File created"
break
fi
FILENAME=${file%%.afp}
BASEFILENAME=$( basename $FILENAME )
ftp.......
done

quick reponse wil be much appreciated..thanks

Moderator's Comments:
Mod Comment Use code tags, please!
Last edited by radoulov; 02-01-2012 at 07:32 AM..
# 2  
Old 02-01-2012
i guess, -1 (numeric one) in ls command will give sorted order

Code:
ls -1 *.afp

# 3  
Old 02-01-2012
thanks for the quick reply..am pretty new to unix scripts...
how to redirect the output of ls -1 into for loop or to any othe looping construct
# 4  
Old 02-01-2012
Quote:
Originally Posted by itkamaraj
i guess, -1 (numeric one) in ls command will give sorted order

Code:
ls -1 *.afp

Are you sure? This indeed will give sorted order but on Strings.
Hence,

eon.1, eon.2, eon.3, eon.10, eon.11, eon.99 etc, when passed thru ls -1, the output would be:

Code:
 
eon.1 
eon.10
eon.11
eon.2
eon.3
eon.99


So the above won't work in the current query.
# 5  
Old 02-01-2012
Code:
 
$ ls -1 | sort -tF -k2 -n
LTR.PDF
LTR.PDF1
LTR.PDF2
LTR.PDF10
LTR.PDF11
LTR.PDF20


Code:
 
ls -1 | sort -tF -k2 -n | while read file
do
# your if condition
# your ftp code
done

These 2 Users Gave Thanks to itkamaraj For This Post:
knight_eon nishantrk
# 6  
Old 02-01-2012
Quote:
Originally Posted by nishantrk
thanks for the quick reply..am pretty new to unix scripts...
how to redirect the output of ls -1 into for loop or to any othe looping construct

Try this:

[[ Assumption : basename of the file will remain the same. Only the sequence number will change ]]

Code:
 
for i in ' ' $(seq 1 99); do                        # Please include ' ' as this will give you .pdf without any numbering in them which I guess you want to include as well
   MYFILE=$LTRNAMELTR.PDF${i}
   if [[ -f ${MYFILE} ]]; then
      <<Do Your Stuff Here with this file>>
   else
       continue 
   fi
done

---------- Post updated at 04:06 PM ---------- Previous update was at 04:03 PM ----------

Quote:
Originally Posted by itkamaraj
Code:
 
$ ls -1 | sort -tF -k2 -n
LTR.PDF
LTR.PDF1
LTR.PDF2
LTR.PDF10
LTR.PDF11
LTR.PDF20


Code:
 
ls -1 | sort -tF -k2 -n | while read file
do
# your if condition
# your ftp code
done


I thought of this one, but this will fail if file path or name contains more than 1 dot '.' Smilie
This User Gave Thanks to knight_eon For This Post:
nishantrk
# 7  
Old 02-01-2012
yes.. but seems his requirement is

My requirement is to scan a directory for file names with LTR.PDF*
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