Simple Script to create folders

Shell Programming and Scripting
1

Hi

I want to write a small script that will create folders named from `AAAA' all the way to `ZZZZ'.

That is:
`AAAA'
`AAAB'
`AAAC'
...
`AABA'
`AABB'
`AABC'
...
`ABAA'
`ABAB'
`ABAC'
...
`ABBA'
...
`ZZZZ'

Any ideas?

2

Example for bash

for i in {A..Z}{A..Z}{A..Z}{A..Z};do mkdir $i;done
3

Sorry I'm a complete novice and may have done something wrong. I tried exactly what you had written above. It only seems to create a folder title `{A..Z}{A..Z}{A..Z}{A..Z}'.

Update
I realized it would be easier to do this with numbers (the names of the folders don't matter to me as long as they're sequential), so I wrote this:

for ((i = 0; i <= 9; i++))
do
  for((j = 0; j <= 9; j++))
  do
    for((k = 0; k <= 9; k++))
    do
      for((l = 0; l <= 9; l++))
      do
        for((m = 1; m <= 9; m++))
        do
          mkdir "$i$j$k$l$m" #This will create the folders
        done
      done
    done
  done
done
4

Hi.

The solution from danmero works perfectly (in bash, ksh and in csh).

If you want to use numbers, this would be quicker I tbink:

printf "%04d\n" $(seq 0 9999) | xargs -I{} mkdir {}

(you should - but may not - have seq on your system!)

Why do you have five for loops? If hope you have 100,000 free inodes!

5 
$ cat filename.pl
for (AAAA..ZZZZ)  {
    mkdir $_;    
}

The above perl script will do, store and run it as

$ perl filename.pl

Or run from your command line itself.