CODEWITHSUNDEEP
bashalgorithm
Jacob Dev
Jacob Dev

Reputation: 31

Finding all symlinks in a directory and echoing their paths and owners of the original file

I'm trying to make a script that will find all symlinks in a directory that the script is currently in, and it will echo "This 'link' refers to 'path' and it's owner is 'owner'.

I've come up with this solution so far, but it doesn't work for some reason.

Here's my code:

#!/bin/bash

for each in .
do
  echo "Link '$1' refers to" $(realpath $1) "and its owner is: " $(ls -ld $(realpath $1) | awk '{print $3}')
end for

And this it the error that it gives me:

jakub.kacerek@perun:~$ ./najdi_symlink.sh
./najdi_symlink.sh: line 7: syntax error: unexpected end of file
jakub.kacerek@perun:~$

I'm 100% sure that the error is in the for loop, but I don't know how to solve it.

Upvotes: 1

Views: 99

Answers (3)

Kevin C
Kevin C

Reputation: 5740

I liked the assignment. I've figured it out.

I'm trying to make a script that will find all symlinks in a directory that the script is currently in, and it will echo "This 'link' refers to 'path' and it's owner is 'owner'.

You might need to change the strings, but the actual code works.

#!/bin/bash

for item in * ; do
  if [ ! -L $item ]
  then
    echo "filename: '$item' is NOT a symlink"
  else
    printf "filename: '$item' is a symlink " && echo $item | awk '{printf("%s ->", $1); system("readlink -f " $1)}' && printf 'owner is: ' ; stat -c '%U' $item
  fi
done

Example output:

[vagrant@vm-local-1 ~]$ ./a.sh
filename: 'a.sh' is NOT a symlink
filename: 'hi.jar' is NOT a symlink
filename: 'ho' is a symlink ho ->/tmp/abc/ho
owner is: vagrant
filename: 'one' is NOT a symlink
filename: 'test.jar' is NOT a symlink
filename: 'test.tar.gz' is NOT a symlink
filename: 'two' is a symlink two ->/home/vagrant/one
owner is: vagrant

Upvotes: 0

Dominique
Dominique

Reputation: 17501

Once you figured out you can use find, why do you keep using a for-loop?

find . -type l -exec echo {} : $(realpath {}) \;

This is not complete but it shows what you can do:

  • basic usage of find
  • find, combined with {} (find result)
  • You can launch commands (like realpath) on the find result.

Have fun :-)

Upvotes: 0

Jacob Dev
Jacob Dev

Reputation: 31

Well after a quick thought I found out the solution for it, it may not be the smartest one but it gets the job done.

The solution is:

#!/bin/bash

for each in $(find . -maxdepth 1 -type l -ls | awk '{print $11}'); do
  echo "Link '$each' refers to" $(realpath $each) "and its owner is: " $(ls -ld $(realpath $each) | awk '{print $3}')
done

Upvotes: 2

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