The shell gets the names of all the folders under the directory and outputs

Gets the names of all the folders under the specified directory/usr/and outputs:

Shell code:

1 #! / Bin / bash
  2 #Method 1
  3 dir = $ (ls -l / usr / | awk '/ ^ d / {print $ NF}')
  4 for i in $ dir
  5 do
  6 echo $ i
  7 done
  8 #######
  9 #Method Two
10 for dir in $ (ls / usr /)
11 do
12 [-d $ dir] && echo $ dir
13 done
14 ## Method Three
15
16 ls -l / usr / | awk '/ ^ d / {print $ NF}' ## Actually the same as the first method, you can directly display without for loop

Running the shell will output the names of all the folders in the/usr/directory:

 1 [root@localhost ~]# ./foler.sh
 2 bin
 3 etc
 4 games
 5 include
 6 lib
 7 lib64
 8 libexec
 9 local
10 sbin
11 share
12 src