How to check for empty file in Perl?


 
Thread Tools Search this Thread
Top Forums UNIX for Dummies Questions & Answers How to check for empty file in Perl?
# 1  
Old 03-04-2008
How to check for empty file in Perl?

Hi,

May I know how to check for empty file in Perl.
Iam missing something, somewhere.

#!/usr/bin/perl

my $open_dir = '/path/';
my $file;
my $ma = "abc_.*.\.psv\$"

opendir(VAR, $open_dir) or die "Can't open $oepn_dir: $!\n";

while( defined ($file = readdir VAR) ) #read all the files in the directory
{
if (($file =~ /$ma/i) && ( -s $file )) {
print $file;
}
}

It doest work.
I doesnt give out any non empty file. pls correct me.
# 2  
Old 03-04-2008
No worries, Figured it out.
I should have given absolute path for the file.
Thanks anyways.
 
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

To check whether the file is empty or not in shell script (sh)

Hi All, I need to check a file whether it exists and also whether it is empty or not. I have a code for this but it is not working as per my requirement. Can anyone pls suggest me on this. function funcFLSanityCheck { if then echo "${varFLSentFileListPath}/${varFLSentFileName}... (7 Replies)
Discussion started by: Arun1992
7 Replies

2. Shell Programming and Scripting

Empty file check

Hi gurus , I have two files and i want to perform different action based on the condition if both or either is empty If then Do something elif then do something elif then do something else do something fi I have tried the below bt its not... (4 Replies)
Discussion started by: r_t_1601
4 Replies

3. Shell Programming and Scripting

Condition to check whether configuration file is empty or not?

CMD=$(find "${Release_Container}" -iname "${Release_Name}"_Release.txt) for i in `cat $CMD` do if ];then cd ${Sandbox_dir} CMD1=$(find "${Sandbox_dir}"/* -iname "${Release_Name}" -type d | awk -F/ '{print $(NF)}' | head -1 ) if ];then echo -e "################### CHECKOUT START... (2 Replies)
Discussion started by: anuragpgtgerman
2 Replies

4. Shell Programming and Scripting

Check if Queue empty or full in perl

Hi, I got problem with queue code how to determined empty and full and problem with while loop Here is my pseudo code : Input page Access Input Pgae Frame For i =3 to pageframe count by 1 construct queue of size i set pageFaultCount to 0 while morepages do page = NextPage... (1 Reply)
Discussion started by: guidely
1 Replies

5. Shell Programming and Scripting

perl script to check if empty files are created and delete them and run a shell script

I have a local linux machine in which the files are dumped by a remote ubuntu server. If the process in remote server has any problem then empty files are created in local machine. Is there any way using perl script to check if the empty files are being created and delete them and then run a shell... (2 Replies)
Discussion started by: hussa1n
2 Replies

6. Shell Programming and Scripting

Check if a text file is empty or not (using ls -s)

Hello, I want to make a script which says if a text file is empty or not. I tried two ways of making it, but I have problems with both of them. Now I think that the better way is the ls -s solution (considering that an empty text file has a 0 weight, because "cat file.txt" fails when file is... (4 Replies)
Discussion started by: Link_
4 Replies

7. Shell Programming and Scripting

Need to check for empty file in C shell script

I am running a C shell script. I have an output file from a previous step and I need to run "something" in the next step to check if the file is empty. If the file is empty, then the job script should finish EOJ. If the file is not empty then the job script should abend. Please help Thanks. (4 Replies)
Discussion started by: jclanc8
4 Replies

8. Shell Programming and Scripting

check if file is empty

How do I check if a file is empty in a sh script I want to test in my shell script if the output file is empty and if it is do one thing and if it isnt empty do another? any ideas? (8 Replies)
Discussion started by: stolz
8 Replies

9. UNIX for Dummies Questions & Answers

to check if file is empty or not and return a non zero value

Hi All, I am new to unix worldd . I need to check a file1 if its empty or not. If its empty then return a non zero value say 99 could you pls let me know the perl script for this. (2 Replies)
Discussion started by: mavesum
2 Replies

10. UNIX for Dummies Questions & Answers

How to check if a file is empty?

Hi Masters..... I have problem !!! I need to check number of records in a file and if it is zero or file is empty i need to do some task. if ; then echo "File s empty" else echo "Not empty" fi so how to check this condition. I used wc -l < filename.txt => 1 for zero records same result... (1 Reply)
Discussion started by: shreekrishnagd
1 Replies
Login or Register to Ask a Question