basename usage in Linux

Function: Remove the directory and suffix of the file

1. Remove the file path

1 basename /backup/jenkins/ci/script/release. SH . bak 2 Release. sh. bak

2. Remove the file suffix

1 basename /backup/jenkins/ci/script/release. SH . bak. bak 2 Release. SH 3 ls 4 Release. SH  Release. SH . bak 5 [email protected]:~/ci/script$

3. Consider the number of suffixes

basename /backup/jenkins/ci/script/release. SH . Bak.old. Oldrelease . SH . Bak[email protected]: basename /backup/jenkins/ci/script/release. SH . Bak.old. old. Bak basename: Extra operand '. Bak'Try 'basename --help' for more information. 

4. Abnormal suffix

1 basename AB b 2 A

5. Other

[Email protected]--printing parameters

$#--Number of printing parameters

$?—— The execution result of the last command/function, 0 for success, not 0 for failure

$!—— pid of the last background run process

$$--the ppid of the last background run process

basename usage in Linux