Sed 命令的 Ruby 转义反斜杠

Question

I have a sed command:我有一个sed命令：

sed "\#/,#d" /tmp/dest_sorted

I need to run this command in my Ruby script.我需要在我的 Ruby 脚本中运行这个命令。 I've tried this:我试过这个：

sed_command = "sed '\#/,#d' /tmp/dest_sorted"
p sed_command

I get the following result:我得到以下结果：

"sed '#/,#d' /tmp/dest_sorted"

I've tried adding a second backslash:我试过添加第二个反斜杠：

sed_command = "sed '\\#/,#d' /tmp/dest_sorted"

but I get this:但我明白了：

"sed '\\#/,#d' /tmp/dest_sorted"

How can I preserve the single backslash at the beginning of my sed command?如何在sed命令开头保留单个反斜杠？

Answer 1

You can use single-quoted (verbatim) strings and escape single quotes inside them:您可以使用单引号（逐字）字符串并在其中转义单引号：

puts 'sed \'\#/,#d\' /tmp/dest_sorted'
#> sed '\#/,#d' /tmp/dest_sorted