Creating Nested Folders with bash
~ 3 min read. Published 11 Oct 2022#
# 5 level deep nested directory creation - this is roughly 65.5 million folders
#
#!/bin/bash
for p in {0..9} {a..z}
do
cd ${p}
for m in {0..9} {a..z}
do
cd ${m}
for n in {0..9} {a..z}
do
mkdir $n
cd ${n}
for y in {0..9} {a..z}
do
mkdir $y
cd ${y}
for z in {0..9} {a..z}
do
mkdir $z
# pwd #you may want to avoid printint, or it will take foever even in a 3 level deep structure :)
done
cd ".."
done
cd ".."
done
cd ".."
done
cd ".."
done
I have not tested the following but it should work and is somewhat simpler
#!/bin/bash
for p in {0..9} {a..z}
do
for m in {0..9} {a..z}
do
for n in {0..9} {a..z}
do
for y in {0..9} {a..z}
do
for z in {0..9} {a..z}
do
mkdir -p "./${p}/${m}/${n}/${y}/${z}
done
done
done
done
done
another option for a flatter structure would be to use doubles i.e. 00 01 02 ….. 8b 8c …..zz
This gives you 36 * 36 = 1296 variations in the first level and then adding a second level would give you about a million combinations :) which if you think about it, even if each folder has 100 files - that 100 million files.