Check file exists from a shellscript

tonydsam · #1 (**permalink**) 04-23-2009

Hi,

I have a list of files that I want to check to see if they exist and then count how many of these files exist, I also want to do the same for the files that arent found.

I have done this by creating temp files see below but want ot do this using variables instead:

Code:

for FILE in $FILELIST
do
ls -l $OKAYDIR/$FILE >>countload.txt 2>/dev/null
done

LOADCOUNT=`cat countload.txt|wc -l`
cat countload.txt >>results.txt

echo >>results.txt
echo "$LOADCOUNT files loaded">>results.txt

Thanks.

lavascript · #2 (**permalink**) 04-23-2009

I'd do something like this (in ksh):-

Code:

foundc=0
nfoundc=0

for file in $FILELIST
do
   if [[ -s "${file}" ]];then
       # file is found and is > 0 bytes.
       foundc=$(( found + 1 ))
       ...do something else you want...
   else
       # file is not found or is 0 bytes
       nfoundc=$(( nfounc + 1 ))
       ...do something else you want...
   fi
done

print "number of files in [$FILELIST] found = [${foundc}]\n"
print "number of files in [$FILELIST] NOT found = [${nfoundc}]\n"

You can change the -s test for -r (file is readble) -e (file exists) -d (file is directory etc) as you see fit.

tonydsam · #3 (**permalink**) 04-23-2009

Thanks, how would I go about putting the found files and not found files into other variables which I could then echo out?

lavascript · #4 (**permalink**) 04-23-2009

Code:

foundc=0
nfoundc=0
fflist=""
nflist=""

for file in $FILELIST
do
   if [[ -s "${file}" ]];then
       # file is found and is > 0 bytes.
       foundc=$(( found + 1 ))
       fflist="${fflist}\n${file}"
       ...do something else you want...
   else
       # file is not found or is 0 bytes
       nfoundc=$(( nfounc + 1 ))
       nflist="${nflist}\n${file}"
       ...do something else you want...
   fi
done

print "List of found files:\n\n${fflist}\n---------"
print "List of NOT found files:\n\n${nflist}\n-----"

print "number of files in [$FILELIST] found = [${foundc}]\n"
print "number of files in [$FILELIST] NOT found = [${nfoundc}]\n"

I've not tested above so maybe couple of bugs.

You could of course save the outputs to a file instead of a variable.

NOTE: accessing the variable list of files will contain \n whereas printing it out should put each entry on new line.

tonydsam · #5 (**permalink**) 04-23-2009

Thanks, how would I go about putting the found files and not found files into other variables which I could then echo out?

lavascript · #6 (**permalink**) 04-23-2009

I've just answered that with $fflist and $nflist.

They should contain a list of files found and a list of files not found.

Let me know if it doesn't work

supriyabv · #7 (**permalink**) 05-28-2009

for i in $1
do
if [ ! -f $i ]; then
let countValue=1
fi
done
This is the code i am using and it is not working. where $1 is my txt file name

Thanks
Supriya

More UNIX and Linux Forum Topics You Might Find Helpful
Thread	Thread Starter	Forum	Replies	Last Post
How to check if a file exists using the if statement	Jazmania	Shell Programming and Scripting	3	09-19-2008 12:32 PM
check if remote file exists	hcclnoodles	Shell Programming and Scripting	2	08-27-2008 05:53 PM
Check if a file exists with certain prefix	raoscb	Shell Programming and Scripting	11	08-20-2008 08:13 AM
check if exists a .ZIP file and unzip it using ftp	DebianJ	Shell Programming and Scripting	1	05-05-2005 04:46 PM
perl ftp check file exists	methos	Shell Programming and Scripting	2	06-18-2003 08:21 AM

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search
Display Modes	Rate This Thread
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode	Rate This Thread: