-
-
Notifications
You must be signed in to change notification settings - Fork 6.2k
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Showing
1 changed file
with
37 additions
and
0 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,37 @@ | ||
true | ||
=== | ||
|
||
返回状态为成功。 | ||
|
||
## 概要 | ||
|
||
```shell | ||
true | ||
``` | ||
|
||
## 主要用途 | ||
|
||
- 用于和其他命令进行逻辑运算。 | ||
|
||
## 返回值 | ||
|
||
返回状态总是成功;返回值为0。 | ||
|
||
## 例子 | ||
|
||
```shell | ||
# 当你的脚本设置set -e时,任何返回值为失败的命令都会使得脚本退出。 | ||
set -e | ||
# 如何临时跳过呢?下面的语句使用逻辑或操作符连接true,返回值一定为真。 | ||
some_command || true | ||
|
||
# 当然,和python的pass一样,也可以用作条件语句临时占位。 | ||
``` | ||
|
||
|
||
### 注意 | ||
|
||
1. 该命令是bash内建命令,相关的帮助信息请查看`help`命令。 | ||
|
||
|
||
<!-- Linux命令行搜索引擎:https://jaywcjlove.github.io/linux-command/ --> |