Creating empty file in all subfolders with unique name - bash - linux

Question

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but I want to have file name be the same name as the directory with "_info.txt" appended to it.
I have tried this
#!/bin/bash
find . -mindepth 1 -maxdepth 1 -type d | while read line; do
touch /Users/xxx/git/xxx/$line/$line_info.txt
done
It is creating ".txt" in each subdirectory.
What am I missing ?

Answer 1

The crucial mistake is that the underscore character is a valid character for a bash variable name:
$ a=1
$ a_b=2
$ echo $a_b
2
There are several ways around this:
$ echo "$a"_b
1_b
$ echo $a'_b'
1_b
$ echo ${a}_b
1_b
As for your task, here's a fast way:
find . -mindepth 1 -maxdepth 1 -type d -printf "%p_info.txt\0" | xargs -0 touch
The find -printf prints the path of each directory, and printf's %p is unaffected by an underscore after it. Then, xargs passes the filenames as many arguments to few runs of touch, making the creation of the files much faster.

Answer 2

Figured it out:
#!/bin/bash
find . -mindepth 1 -maxdepth 1 -type d | while read line; do
touch /Users/xxxx/git/xxxx/$line/"$line"_info.txt
done
I think I can still do the "find ." better as I have to run in directory I want the files added to. Ideally it should be able to be run anywhere.

Answer 3

If you are not recursing at all, you don't need find. To loop over subdirectories, all you need is
for dir in */; do
touch /Users/xxxx/git/xxxx/"$dir/${dir%/}_info.txt"
done
Incidentally, notice that the variable needs to be in double quotes always.

Answer 4

Try this script :
#!/bin/bash
find $1 -type d | while read line
do
touch "$line/$(basename $( readlink -m $line))_info.txt"
done
Save it as, say, appendinfo and run it as
./appendinfo directory_name_which_include_symlinks
Before
ssam#udistro:~/Documents/so$ tree 36973628
36973628
`-- 36973628p1
`-- 36973628p2
`-- 36973628p3
3 directories, 0 files
After
ssam#udistro:~/Documents/so$ tree 36973628
36973628
|-- 36973628_info.txt
`-- 36973628p1
|-- 36973628p1_info.txt
`-- 36973628p2
|-- 36973628p2_info.txt
`-- 36973628p3
`-- 36973628p3_info.txt
3 directories, 4 files
Note : readlink canonicalizes the path by following the symlinks. It is not required if, say, you're not going to give arguments like ..

Answer 5

Try this :
find . /Users/xxx/git/xxx/ -mindepth 1 -maxdepth 1 -type d -exec bash -c 'touch ${0}/${0##*/}_info.txt' {} \;

Answer 6

You're missing the path to the folder. I think you meant to write
touch "./$folder/*/*_info.txt"
Although this still only works if you start in the right directory. You should really have written something like
touch "/foo/bar/user/$folder/*/*_info.txt"
However, your use of "*/*_info.txt" is very... questionable... to say the least. I'm no bash expert, but I don't expect it to work. Reading everything in a directory (using "find" for example, and only accepting directories) and piping that output to "touch" would be a better approach.