Check the Files existence

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# 1  
Old 08-11-2013
Check the Files existence


I have a requirement to check whether the files exists, then it will call other steps in shell script.

I did
ls *.csv|wc -l
if [ -f *.csv ]

then checking the count of the files should be more than 1 then it will call other steps.

I am getting the error that too many arguements as there n number of files which has .csv.

Is there any other way we can check file existence? I don't need the count of the files, just need whether the files are there to process.

Thanks in advance
# 2  
Old 08-11-2013
Maybe something like this:
for file in *.csv; do
  if [ -f $file ]; then

# 3  
Old 08-11-2013
Thanks Bartus,

It works if i do process one by one file until there are no files.
I don't want to pick any files which arrive after my process is invoked. So I am checking whether the files exists, If exists i write all files into one one file, then i take the file name from that file and do the actual process.
# 4  
Old 08-11-2013
The latter might work if the shell can take more arguments than ls.
Allow unlimited files:
\ls |
while read file
  if [ -f "$file" ]
    case $file in
    *.csv) ;;
    *) continue;;

I did \ls to escape an alias in interactive shells.
Some shells allow a more comprehensive match than the case statement.
# 5  
Old 08-11-2013
My Script which i am using:
cd /var/opt/input
filecount=$(find . -type f -name *.csv | xargs wc -l)
if [ $filecount -gt 0 ]
echo "Number of Files are $filenumber"
echo "No Files"

When the Input locations has huge number of files it is giving error saying
HTML Code:
/usr/bin/find: arg list too long
# 6  
Old 08-11-2013
find . -type f -name "*.csv" | wc -l

This gives only a number, and can be stored in a variable as you did.
But storing the list in a variable can lead to a "too long" error in the shell.

Last edited by MadeInGermany; 08-11-2013 at 02:05 PM..
This User Gave Thanks to MadeInGermany For This Post:
# 7  
Old 08-11-2013

But i don't want to store list in variable i just need to store count value into Variable. still getting the same error.

Any other way to get this done?
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