Checking the existance of multiple files Post: 302462416

Sponsored Content

Top Forums Shell Programming and Scripting Checking the existance of multiple files Post 302462416 by methyl on Thursday 14th of October 2010 07:25:19 AM

10-14-2010

Registered User

This above script from post #1 appears to work in a Posix Shell.

Code:

if [ -e /path/filename.* ]
then
        <do some work> 
else
        <no files>
fi

The script from post #5 is an improvement on the one in post #4 because it does not fail in the "ls" when there are no files.

However the script does not work if there are space characters in filenames and more importantly does not give the desired result. We need to put quotes round the filename and exit the do-done loop when we find the first file.
Strangely the script works when there are no files because it fails to expand the pattern and pases "/path/filename*" as the sole paramter to the "test -e" statement which then does not find the file.
Overall it is actually no better than the script in post #1 because it relies on "test -e" which is what I suspect is the actual problem.

Code:

for i in /path/filename.*
do
	if [ -e "$i" ]
	then
		echo "File Exists"
                          break
	else
		echo "Fail"
	fi
done

---------- Post updated at 12:25 ---------- Previous update was at 12:17 ----------

Posts crossing in the post here.

I agree totally with post #7 . Use "-f" not "-e" . The "-e" option does not work in "ksh".

methyl

View Public Profile for methyl

Find all posts by methyl

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Checking file existance by extension

I'm sure this can't be too tough, but. I want to check the existance of file(s) by extension. There may be 0,1,N files. If any files exist, then remove them. Thanks for any insight.

2. Shell Programming and Scripting

checking existance of files and directories

I have a list of files and their directories, starting from a particular location. e.g. temp/new/a.c temp/new/b.c temp/old/a.c temp/old/older/b.c etc. Now I want to check the existence of all these files in the respective directories . I am trying something like cat "fileList" |...

3. Shell Programming and Scripting

The checking of folder existance is not working...

Hi all, I have the following code: if ; then echo 'folder not exist'; else echo 'folder exist'; fi The "testing" folder is not exist in /home/batch , but thhe result is 'folder exist'. It seems that the code cannot detect that the folder "testing" not exist. ANybody know the...

4. Shell Programming and Scripting

how to check existance of multiple directories

Hi, I would like to check whether all the directories exists or not. I tried the below but it gives some error. below is the excerpt from my original script 24 #Check if the required directories are exists 25 dirExists() { 26 27 if 28 then 29 echo "required...

5. Shell Programming and Scripting

Error while checking file existance

Kindly help on below script: << i='find ...' if then echo 'File Exists' else echo 'File Does Not Exist' >> If i has some file name then it runs properly but if i has nothing ( blank value) then it throws an error. I dont exactly remember right now but error seems like:...

6. Shell Programming and Scripting

Record count checking for multiple files through for-loop

Hi Friends, I wrote one shell script to check the record count in two files and that will send us the notification activity if found zero record count. What i did is I created for loop and checking the count for both of the files but what is happening is for first file has data then it's...

7. Shell Programming and Scripting

Checking Multiple File existance in a UNIX folder(Note: File names are all different)

HI Guys, I have some 8 files with different name and extensions. I need to check if they are present in a specific folder or not and also want that script to show me which all are not present. I can write if condition for each file but from a developer perspective , i feel that is not a good...

8. Shell Programming and Scripting

Checking File record equal to multiple of 70 or nearest number to multiple of 70

Hello, I have a file with below content - Example 3 6 69 139 210 345 395 418 490 492 I would like the result as - Multiple of 70 or nearest number in the file less than the multiple of 70 69 139

9. Shell Programming and Scripting

CSV joining and checking multiple files

Hello, For our work we use several scripts to gather/combine data for use in our webshop. Untill now we did not had any problems but since a couple days we noticed some mismatches between imports. It happened that several barcodes where matched even though it was a complete other product. Of...

10. Shell Programming and Scripting

Merge multiple tab delimited files with index checking

Hello, I have 40 data files where the first three columns are the same (in theory) and the 4th column is different. Here is an example of three files, file 2: A_f0_r179_pred.txt Id Group Name E0 1 V N(,)'1 0.2904 2 V N(,)'2 0.3180 3 V N(,)'3 0.3277 4 V N(,)'4 0.3675 5 V N(,)'5 0.3456 ...

LEARN ABOUT PHP

datetimeinterface.gettimestamp

DATETIMEINTERFACE.GETTIMESTAMP(3)					 1					 DATETIMEINTERFACE.GETTIMESTAMP(3)

DateTime::getTimestamp - Gets the Unix timestamp

       Object oriented style

SYNOPSIS

       public int DateTime::getTimestamp (void	)

DESCRIPTION

       int DateTimeImmutable::getTimestamp (void  ) int DateTimeInterface::getTimestamp (void  )

       Procedural style
       int date_timestamp_get (DateTimeInterface  $object)

	Gets the Unix timestamp.

PARAMETERS

       This function has no parameters.

RETURN VALUES

	Returns the Unix timestamp representing the date.

EXAMPLES

       Example #1

	      DateTimeInterface.getTimestamp(3) example

	      Object oriented style

	      <?php
	      $date = new DateTime();
	      echo $date->getTimestamp();
	      ?>

	      Procedural style

	      <?php
	      $date = date_create();
	      echo date_timestamp_get($date);
	      ?>

	      The above examples will output something similar to:

	      1272509157

NOTES

	Using U as the parameter to DateTime.format(3) is an alternative when using PHP 5.2.

SEE ALSO 
DateTime.setTimestamp(3), DateTime.format(3).
PHP Documentation Group 											 DATETIMEINTERFACE.GETTIMESTAMP(3)

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Checking file existance by extension

Discussion started by: niswonp

2. Shell Programming and Scripting

checking existance of files and directories

Discussion started by: herojeett

3. Shell Programming and Scripting

The checking of folder existance is not working...

Discussion started by: suigion

4. Shell Programming and Scripting

how to check existance of multiple directories

Discussion started by: lookinginfo