Creating key value pair while reading file shell bash

Question

I have a file in custom_target.config. I have a shell script that is going to read through this config file. The config file is split up by the name of the file and the target directory I am trying to move it to. I was wondering what the best way is to split line in the file and start moving the files to the respective locations.

EXAMPLE_FILE /home/user/example
EXAMPLE_FILE_1 /home/user/example
EXAMPLE_FILE_1 /home/user/example/subfolder

Attemp so far:

while IFS='' read -r line || [[ -n "$line" ]]; do
    for element in $line
    do
      echo $element
    done
    #echo "Text read from file: $line"
done < "$1"

Feels like this should be over on the *nix SO. I have just been looking at the same thing :) unix.stackexchange.com/questions/111397/… — Chris Rymer
– Chris Rymer, Commented Mar 21, 2018 at 16:58
Do you want to move EXAMPLE_FILE to /home/user/example? Try while IFS= read -r file dir; do echo mv "${file}" "${dir}"; done < "$1" and remove echo` when it is what you want. — Walter A
– Walter A, Commented Mar 21, 2018 at 17:12
Be nice to your scripts: ensure that you feed them valid POSIX text files (that end with a newline) instead of cluttering them with hacks like || [[ -n $line ]]. — chepner
– chepner, Commented Mar 21, 2018 at 17:13

chepner · Accepted Answer · 2018-03-21 17:13:06Z

1

Let read do the word splitting instead of trusting $line not to do anything odd.

while read -r key value; do
  echo "KEY: $key"
  echo "VALUE: $value"
done < "$1"

answered Mar 21, 2018 at 17:13

chepner

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Community · Accepted Answer · 2020-06-20 09:12:55Z

0

you can use Awk:

copy files

  `awk '{printf "cp "$1" "$2}' custom_target.config`

move files

  `awk '{printf "mv "$1" "$2}' custom_target.config`

print a strings to be executed: (cp file_name path)

$1 - first field separated by space (file name)

$2 - second field separated by space (path name)

awk '{printf "cp "$1" "$2}' custom_target.config

use `` for execute the output strings

edited Jun 20, 2020 at 9:12

CommunityBot

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answered Mar 21, 2018 at 18:32

shaiki siegal

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Creating key value pair while reading file shell bash

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you can use Awk:

copy files

move files

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Collectives™ on Stack Overflow

2 Answers 2

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you can use Awk:

copy files

move files

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