Copying files from multiple directories into a single destination directory

There are multiple directories which contain a file with the same name:

direct_afaap/file.txt
direct_fgrdw/file.txt
direct_sardf/file.txt
...

Now I want to extract them to another directory, direct_new and with a different file name such as:

[mylinux~ ]$ ls direct_new/
file_1.txt  file_2.txt  file_3.txt

How can I do this?

BTW, if I want to put part of the name in original directory into the file name such as:

[mylinux~ ]$ ls direct_new/
file_afaap.txt  file_fgrdw.txt  file_sardf.txt

What can I do?

Answer

This little BaSH script will do it both ways:

#!/bin/sh
#

# counter
i=0

# put your new directory here
# can't be similar to dir_*, otherwise bash will
# expand it too
mkdir newdir

for file in `ls dir_*/*`; do
    # gets only the name of the file, without directory
    fname=`basename $file`
    # gets just the file name, without extension
    name=${fname%.*}
    # gets just the extention
    ext=${fname#*.}

    # get the directory name
    dir=`dirname $file`
    # get the directory suffix
    suffix=${dir#*_}

    # rename the file using counter
    fname_counter="${name}_$((i=$i+1)).$ext"

    # rename the file using dir suffic
    fname_suffix="${name}_$suffix.$ext"

    # copy files using both methods, you pick yours
    cp $file "newdir/$fname_counter"
    cp $file "newdir/$fname_suffix"
done

And the output:

$ ls -R
cp.sh*
dir_asdf/
dir_ljklj/
dir_qwvas/
newdir/
out

./dir_asdf:
file.txt

./dir_ljklj:
file.txt

./dir_qwvas:
file.txt

./newdir:
file_1.txt
file_2.txt
file_3.txt
file_asdf.txt
file_ljklj.txt
file_qwvas.txt