Bash Shell awk/xargs magic

Question

I'm trying to learn a little awk foo. I have a CSV where each line is of the format partial_file_name,file_path. My goal is to find the files (based on partial name) and move them to their respective new paths. I wanted to combine the forces of find,awk and mv to achieve this but I'm stuck implementing. I wanted to use awk to separate the terms from the csv file so that I could do something like
find . -name '*$1*' -print | xargs mv {} $2{}
where $1 and $2 are the split terms from the csv file. Anyone have any ideas?
-peace

Answer 1

I think you've got things mixed up here. {} can only be used in find, and only once. I.e you cannot do something like find -name '*.jpg' -exec mv {} {}.png.

Do this:

$ cat korv
foo.txt,/hello/
bar.jpg,/mullo/
$ awk -F, '{print $1 " " $2}' korv
foo.txt /hello/
bar.jpg /mullo/

-F sets the delimiter, so the above will split using ",". Next, add * to the filenames:

$ awk -F, '{print "*"$1"*" " " $2}' korv
*foo.txt* /hello/
*bar.jpg* /mullo/
**

This shows I have an empty line. We don't want this match, so we add a rule:

$ awk -F, '/[a-z]/{print "*"$1"*" " " $2}' korv
*foo.txt* /hello/
*bar.jpg* /mullo/

Looks good, so encapsulate all this to mv using a subshell:

$ mv $(awk -F, '/[a-z]/{print "*"$1"*" " " $2}' korv)
$

Done.

Answer 2

You don't really need awk for this. There isn't really anything here which awk does better than the shell.

#!/bin/sh
IFS=,
while read file target; do
  find . -name "$file" -print0 | xargs -ir0 mv {} "$target"
done <path_to_csv_file

If you have special characters in the file names, you may need to tweak the read.