以awk模式更改正则表达式分隔符
[英]Change regex delimiter in awk patterns
问题描述
Is is possible to change the default regex delimiter (slash) to other characters? 
是否可以将默认的正则表达式分隔符（斜杠）更改为其他字符？
I tried to do it using with sed syntax but it didn't work. 我尝试使用sed语法来实现它，但它没有用。
$ gawk '\|bash| { print } ' backup.sh
gawk: |bash| { print }
gawk: ^ syntax error
The regex I am trying has many slashes. 我正在尝试的正则表达式有很多斜线。 Escaping all of them will make it ugly and unreadable. 逃离所有这些将使它变得丑陋和难以理解。 I tried changing the / to | 我尝试将/更改为 but it didn't work. 但它不起作用。
TIA TIA
1 个解决方案
解决方案1
2 已采纳 2012-05-12 11:02:40
AWK doesn't support that. AWK不支持这一点。 Use a variable instead. 改为使用变量。
gawk 'BEGIN {pattern = "/"} $0 ~ pattern {print}' backup.sh
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