Compare actual files with format

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# 1  
Old 10-16-2016
Compare actual files with format


I have database table let say t_filenames which stores filenames and date_format in two columns.


ABCD_TV_YYYYMMDD.txt                  YYYYMMDD

Actual files are available in a directory (say /tmp), actual files are with time/date details.
for e.g.

I would like to write a script to verify if all the files in the table are available over the directory. If exists create a dummy file if not just exist.

Could you please help me to solve this.

I tried to write a function which connects database and gets the filename and format. As a first step, the format would be replaced with ? marks and then used [[ ]] to verify if the file match. But not much success.

Thank you in advance.


Last edited by rbatte1; 10-17-2016 at 08:09 AM.. Reason: Added CODE tags for directory list and ICODE tags for important characters being replaced.
# 2  
Old 10-16-2016
Hello pointers1234,

I haven't have a real time scenario so didn't test this code, you could give it a try and let us know how it goes then.
cat script.ksh
### Here I am taking an example of sql db.
cat << EOF > sql_file.sql
select filenames from t_filenames;

sqlplus user_name/password@schema_name < sql_file.sql > output_file
#### Here we need to remove junk lines from file output_file which we will get once we connect to client. eg--> connected to: SQL*PLUS version etc.
which I can't predict until/unless you post output for above query with code tags here. So assuming we have removed those lines and have them into a file named output_file_names.
awk '{if($0 !~ /SQL*plus/ && $0 !~ /connected to/){print}}' output_file > output_file_names
while read line
	if [[ -f "/tmp/$line" ]]
		echo "File named " $line " is present."
		touch "/tmp/$line"
done < "output_file_names"

Though there could be more ways to perform this task, one could take this as a startup point.

R. Singh
# 3  
Old 10-20-2016
Sorry for being late to confirm.

Thank you, it helped me to solve the issue.

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