Linux Basic Learning -10.2-wildcard review

1. * Everything

End With. txt *.txt

End With. Log *.log

A file in the system that begins with LS.

Find/-type f-name "ls*"

Locate the file in the system that contains Oldboy.

Find/-type f-name "*oldboy*"

2. {} Generate Sequence

echo {1..10}

echo {10..1}

echo {01..10}

echo {01..100}

echo {A.. C

echo {A.. Z

echo {A.. Z

[[email protected] ~]# echo stu{01..10}

Stu01 stu02 stu03 stu04 stu05 stu06 stu07 stu08 stu09 stu10

[[email protected] ~]# echo 20{01..10}

2001 2002 2003 2004 2005 2006 2007 2008 2009 2010

#通过 {}

[Email protected] ~]# echo {A.. Z

A b c d e F g h i j k l m n o p q R S t u v w x y Z

[[email protected] ~]# echo {a c F}

{A C F}

[[email protected] ~]# echo {a,c,f}

A C F

[[email protected] ~]# echo A{b,c}

AB AC

[[email protected] ~]# echo A{,c}

A AC

[[email protected] ~]# echo Oldboy.txt{,.bak}

Oldboy.txt Oldboy.txt.bak

[email protected] ~]# Touch oldboy.txt

[[email protected] ~]# CP Oldboy.txt{,.bak}

Cp:overwrite ' Oldboy.txt.bak '? Y

[Email protected] ~]# ls-l oldboy.txt*

[Email protected] ~]# ls-l oldboy.txt*

-rw-r--r--3 root root 0 Nov 23:50 oldboy.txt

-rw-r--r--. 1 root root 0 Nov 23:50 Oldboy.txt.bak

-rw-r--r--3 root root 0 Nov 23:50 Oldboy.txt-hard

[Email protected] ~]#

[[email protected] ~]# #cp Oldboy.txt{,.bak}

[[email protected] ~]# echo Oldboy.txt{,.bak}

Oldboy.txt Oldboy.txt.bak

[[email protected] ~]# echo A{,c}

A AC

3. Summary

1) Find Files

2) * {}

3)? Any one

Exercises:

Tell me, what are the wildcard characters?

Linux Basic Learning -10.2-wildcard review