bash sed 错误“sed：不匹配的‘/’”
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Sed error "sed: unmatched '/'"
提问by MOHAMED
I have a file containing data with the following format:
我有一个包含以下格式数据的文件：
{"parameter":"toto.tata.titi", "value":"0/2", "notif":"1"}
I make a change on the file with sed:
我使用 sed 对文件进行了更改：
sed -i "/\<$param\>/s/.*/$line/" myfile
which linevariable is
哪个line变量是
{"parameter":"toto.tata.titi", "value":"0/2", "notif":"3"}
and paramvariable is toto.tata.titi
和param变量是toto.tata.titi
The above sedcommand return error:
上面的sed命令返回错误：
sed: unmatched '/'
Because the linevariable is containing /==> "0/2"
因为line变量包含/==>"0/2"
How to update my sed command to make it work even if the linevariable is containing /?
即使line变量包含，如何更新我的 sed 命令以使其工作/？
回答by konsolebox
Your $paramor $linemay contain / on it which causes sedto have a syntax error. Consider using other delimiters like |or @.
您的$param或$line可能包含 / 导致sed语法错误。考虑使用其他分隔符，如|或@。
Example:
例子：
sed -i "/\<$param\>/s|.*|$line|" myfile
But that may not be enough. You can also quote your slashes when they expand:
但这可能还不够。您还可以在斜线展开时引用斜线：
sed -i "/\<${param//\//\/}\>/s|.*|$line|" myfile
Other safer characters can be used too:
也可以使用其他更安全的字符：
d=$'\xFF' ## Or d=$(printf '\xFF') which is compatible in many shells.
sed -i "/\<${param//\//\/}\>/s${d}.*${d}${line}${d}" myfile
回答by SruthiChedath
i had the same error when i used sed -i.bak 's/\r$//' command in my ansible task. i solved it by simply escaping the '\' in '\r'. i changed the command to sed -i.bak 's/\\r$//'
当我在 ansible 任务中使用 sed -i.bak 's/\r$//' 命令时，我遇到了同样的错误。我通过简单地转义“\r”中的“\”来解决它。我将命令更改为sed -i.bak 's/\\r$//'
回答by Ed Morton
This will robustly only operate on lines containing the string(not regexp) toto.tata.titi:
这将仅在包含字符串（不是正则表达式）的行上稳健运行toto.tata.titi：
awk -v param="$param" -v line="$line" 'index(awk 'BEGIN{param=ARGV[1]; line=ARGV[2]; ARGV[1]=ARGV[2]=""} index(##代码##,param){##代码## = line} 1' "$param" "$line" file
,param){##代码## = line} 1' file
and will be unaffected by any chars in paramor in lineother than backslashes. If you need to be able to process backslashes as-is, the shell variables just need to be moved to the file name list and the awk variables populated from them in the BEGIN section instead of by -vassignment:
并且不受反斜杠中param或line反斜杠中的任何字符的影响。如果您需要能够按原样处理反斜杠，只需将 shell 变量移动到文件名列表中，并在 BEGIN 部分中从它们填充 awk 变量，而不是通过-v赋值：
