将某些匹配项转换为大写的 Sed 表达式

Question

此 sed 表达式将输入字符串转换为两行输出字符串。两条输出行中的每一行都由输入的子串组成。第一行需要转换成大写:

s:random_stuff\(choice1\|choice2\){\([^}]*\)}:\U\1\n\2:

目的是转换

random_stuff_choice1{This is a sentence that MAY contain AnyThing}
random_stuff_choice2{This is another similar sentence}

进入

CHOICE1
This is a sentence that MAY contain AnyThing
CHOICE2
This is another similar sentence

我遇到的问题是\U 适用于它后面的所有内容，因此第二行也是大写的。是否可以使\U 仅适用于第一场比赛？

Answer 1

与 sed :

$ sed 's/.*\(choice[0-9]\+\){\([^}]*\)}/\U\1\n\E\2/' file
CHOICE1
This is a sentence that MAY contain AnyThing
CHOICE2
This is another similar sentence

与 awk :

$ awk -F'{|}' 'gsub(/.*_/,""){print toupper($1)"\n"$2}' file
CHOICE1
This is a sentence that MAY contain AnyThing
CHOICE2
This is another similar sentence