更新 'shell/shell变量提取赋值.md'

2023-08-12 16:16:09 +08:00 · 2023-08-12 16:16:09 +08:00 · 2ac0872004
commit 2ac0872004
parent 27ca5e9a7b
1 changed files with 1 additions and 2 deletions
--- a/shell/shell变量提取赋值.md
+++ b/shell/shell变量提取赋值.md
@ -4,4 +4,3 @@
 |${var:=aa}|若var为空或未设定, 返回aa, var=aa|
 |${var:+aa}|若var有值 返回aa, var值不变|
 |${var:?aa}|若var为空或未设定 返回aa并退出shell, 若aa无值, 则输出parameter null or not set, 用于检测var是否被正确赋值|
-|-|-|