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selection_question #4273
openname=在 Lin desc=知识点:l answer_ana answer_id=
Status:
New
Priority:
Normal
Assignee:
-
Start date:
01/26/2024
Due date:
% Done:
0%
Estimated time:
name:
在 Linux 系统中，如何替换一个文本文件内root关键字为大写的ROOT，不管root关键字出现多少次都替换它并写入原文件，下面哪些命令是正确的？
score:
5.0
topic_type:
多选题
...
options:
- is_selected: false
name: '选项A: sed -i "s/root/ROOT/" file.txt'
- is_selected: false
name: '选项B: sed -i "s/root/ROOT/g" file.txt'
- is_selected: false
name: '选项C: awk ''{gsub(/root/,"ROOT"); print $0 }'' file.txt > file.txt'
- is_selected: false
name: '选项D: awk ''{sub(/root/,"ROOT"); print $0 }'' file.txt < file.txt'
tag:
desc:
知识点:linux与bash,难度中等
...
is_delete:
false
answer_id:
4272
tags:
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