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

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Top Forums Shell Programming and Scripting Checking Multiple File existance in a UNIX folder(Note: File names are all different)
# 1  
Old 09-24-2014
Wrench 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 option. Please suggest some ideas on how to do it.

Your reply is appriciated : Thanks Shankar
# 2  
Old 09-24-2014
It is easy to see what files are there. You then need to walk through the list and see which file wasn't found.
Code:
echo `ls . | egrep "listener.ora|sqlnet.ora|tnsnames.ora|missingfile.txt"`



Moderator's Comments:
Mod Comment Please use code tags next time for your code and data. Thanks
Last edited by vbe; 09-24-2014 at 10:11 AM.. Reason: code tags!!
This User Gave Thanks to gandolf989 For This Post:
shankarpanda003
# 3  
Old 09-24-2014
If you have those filenames in a file a simple grep can do what you want. For example:
Code:
$ cat f.txt
a
b
d
e
$ ls -1 folder
a
b
c
d
$ grep -v "^$(ls -1 folder)$" f.txt
e
$

File c is not present in the file and ignored. File e is missing in folder.
This User Gave Thanks to cero For This Post:
shankarpanda003
# 4  
Old 09-24-2014
Thanks!!
Thanks a lot Cero and gandolf989. It helps! Smilie
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