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I am working for a company and right now am working on project. I am new to linux shell scripting

Hi All!!

I have a large file containing millions of records. My purpose is to extract 8 characters immediately from the given file.
222222222|ZRF|2008.pdf|2008|01/29/2009|001|B|C|C...

I have an index file.txt and it consists of pdf files. I have to check the file exist based on A(it follows 8 digits) or B (it follows 9 digits).Please help with Linux Shell Scripting. I had tried...

FIRSTLINE=`head -n 1 $indexFile

while read -r line
do
id = cut -c 9 $FIRSTLINE
echo $id
done < "$indexFile"

I have Index Line and I tried to get the 9th character from the file and to check the character is "|" or not.
Shell Scripting.


Sample Index file....

I have a homework and I tried to work on this but unable to find the solution. Can someone help me how to resolve the issue.

I have a package file and it contains text file as...

Hi,

Can anyone suggest me for the below steps.
Here the index files is nothing but a text file and In index file there are n number of pdf files.

Step 0 check out if this is for A(index...