Printing the number of files having the same name for every file from a directory

Question

I am new to Linux and I have an assignment which requires writing a shell script that prints all the names of both files and subdirectories of a directory (given as parameter) and this should also print the number of files with the same name for every file from this directory.

My problem is that I was able to print the names of all files and directories and also to do the second part of the task, but I can't bring them together, which means that my output has two different parts:

/some/path
a1  
a2 
a3

a1 1
a2 1
#a1, a2 files and a3 directory

And it should look like this:

a1 1
a2 1
a3 

This is the code that I used writing my shell script:

#the first part that prints all the names from the directory
mydir=$1
cd $mydir
ls -l $mydir | awk '{print $9}'

#the second part that prints the number of files with the same name for every file
file=$(find $mydir -type f -printf '%f\n' | sort | uniq -c)
echo $file

Answer 1

In the context of a "learning Linux/shell scripting" assignment, I would suggest something along these lines:

mydir=$1

for f in "$mydir"/*
do
  printf "%s %d\n" "$f" $(find "$mydir" -name "$f" -print 2>/dev/null | wc -l)
done

Adjustments from your script:

1. no need to cd to the directory in order to ls it
2. no need to awk the filename; you could just ls it, but ...
3. running the ls ... awk separately from the find means you got separated output
4. no need to specially print the find output if all you're doing is counting it
5. no need to sort the output if all you're doing is counting it
6. no need to use uniq if you're trying to catch all
7. I took the liberty of removing -type f in case your assignment would want you to find directories of the same name
8. added -name "$f" to have find match only files with matching names
9. use printf to combine the filename and counts into the same line of output
10. no need to parse the output of ls in order to get the filename(s); that's what for f in "$mydir"/* -- in particular, the * -- does; it expands to match filenames.

I've also quoted all of your variable usages, in case the user provides a filename such as "this file".

This won't show hidden files in the output; you could add shopt -s dotglob to have the "$mydir"/* expand to match dotfiles (hidden files) as well.

As an advanced caveat, this will mis-count filenames that have newlines in them, provided that the user passes in a newline-containing filename to look for.