CODEWITHSUNDEEP
shellfor-loopawkwhile-loop
Registered User
Registered User

Reputation: 265

rename files based on source file

I have 224 pdf files and I'd like to prefix the files with a number and _

Example: stackoverflow_nov_2014.pdf

File accounts.csv contains: 2567,stackoverflow

So the goal is to take 2567 and prefix it to the pdf file with an underscore: 2567_stackoverflow_nov_2014.pdf

I think I would want to use read -r in a while loop as explained here: https://unix.stackexchange.com/questions/147569/rename-a-batch-of-files-after-reading-from-a-source-file

But when attempting this as it's written, the shell gives usage of mv command and nothing changes with the files.

Edit: Adding sample data from sources file (accounts.csv)

11,My_Golf_Shop
2567,stackoverflow    
11122,Test_Store

By the way, the sources file (accounts.csv) isn't in the same order as the files in the directory as accounts.csv so somehow there would need to be matching with file name and the accounts.csv that occurs.

Upvotes: 0

Views: 77

Answers (1)

Jackie Yeh
Jackie Yeh

Reputation: 1627

Below is the script that should work under the assumption: 1. All the files are under the same folder 2. For a particular prefix, this script will only rename the first found file.

#!/bin/bash
while read -r line; do
    num=`echo $line |cut -f 1 -d ","`
    prefix=`echo $line |cut -f 2 -d ","`
    if [ -n "$num" -a -n "$prefix" ]; then
        full_file=$(basename `eval find . -name '$prefix\*' -print -quit` 2>/dev/null ) 
        mv $full_file ${num}_$full_file 2>/dev/null
    fi
done < accounts.csv

Upvotes: 1

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