glob

通配符

# touch a2b

# ll a?b

-rw-r--r-- 1 root root 0 Mar 2 23:24 a2b

# ll a[0-9]b

-rw-r--r-- 1 root root 0 Mar 2 23:24 a2b

# touch 2

# ls [^a-z]

2

# ls *.txt

1.txt 2.txt 3.txt 4.txt 6.txt 7.txt