For the command: /usr/bin/sh -c "ls 1`" (a backquote after 1).
对于命令：/ usr / bin / sh -c“ls 1`”（1之后的反引号）。
How to make it run successfully? Adding a backslash before "`" does not work. ` is a special char as we know, and I tried surrounding it with single quote too (/usr/bin/sh -c "ls 1'`'"), but that doesn't work either.
如何让它成功运行？在“`”之前添加反斜杠不起作用。 `是我们所知道的一个特殊字符，我也尝试使用单引号将其包围（/ usr / bin / sh -c“ls 1'`'”），但这也不起作用。
The error always are:
错误始终是：
% /usr/bin/sh -c "ls 1\`"
Unmatched `
3 个解决方案
#1
35
You need to escape the backtick, but also escape the backslash:
你需要逃避反引号，但也逃避反斜杠：
$ touch 1\` $ /bin/sh -c "ls 1\\\`" 1`
The reason you have to escape it "twice" is because you're entering this command in an environment (such as a shell script) that interprets the double-quoted string once. It then gets interpreted again by the subshell.
您必须“两次”转义它的原因是因为您在一个解释双引号字符串的环境（例如shell脚本）中输入此命令。然后由子shell再次解释它。
You could also avoid the double-quotes, and thus avoid the first interpretation:
你也可以避免使用双引号，从而避免第一种解释：
$ /bin/sh -c 'ls 1\`' 1`
Another way is to store the filename in a variable, and use that value:
另一种方法是将文件名存储在变量中，并使用该值：
$ export F='1`' $ printenv F 1` $ /bin/sh -c 'ls $F' # note that /bin/sh interprets $F, not my current shell 1`
And finally, what you tried will work on some shells (I'm using bash, as for the above examples), just apparently not with your shell:
最后，你尝试过的东西会在一些shell上运行（我正在使用bash，就像上面的例子一样），显然不是你的shell：
$ /bin/sh -c "ls 1'\`'" 1` $ csh # enter csh, the next line is executed in that environment % /bin/sh -c "ls 1'\`'" Unmatched `.
I strongly suggest you avoid such filenames in the first place.
我强烈建议你首先避免使用这些文件名。
#2
2
Use single quotes instead:
改为使用单引号：
/usr/bin/sh -c 'ls 1\`'
#3
0
/usr/bin/sh -c "ls '1\`'"
#1
35
You need to escape the backtick, but also escape the backslash:
你需要逃避反引号，但也逃避反斜杠：
$ touch 1\` $ /bin/sh -c "ls 1\\\`" 1`
The reason you have to escape it "twice" is because you're entering this command in an environment (such as a shell script) that interprets the double-quoted string once. It then gets interpreted again by the subshell.
您必须“两次”转义它的原因是因为您在一个解释双引号字符串的环境（例如shell脚本）中输入此命令。然后由子shell再次解释它。
You could also avoid the double-quotes, and thus avoid the first interpretation:
你也可以避免使用双引号，从而避免第一种解释：
$ /bin/sh -c 'ls 1\`' 1`
Another way is to store the filename in a variable, and use that value:
另一种方法是将文件名存储在变量中，并使用该值：
$ export F='1`' $ printenv F 1` $ /bin/sh -c 'ls $F' # note that /bin/sh interprets $F, not my current shell 1`
And finally, what you tried will work on some shells (I'm using bash, as for the above examples), just apparently not with your shell:
最后，你尝试过的东西会在一些shell上运行（我正在使用bash，就像上面的例子一样），显然不是你的shell：
$ /bin/sh -c "ls 1'\`'" 1` $ csh # enter csh, the next line is executed in that environment % /bin/sh -c "ls 1'\`'" Unmatched `.
I strongly suggest you avoid such filenames in the first place.
我强烈建议你首先避免使用这些文件名。
#2
2
Use single quotes instead:
改为使用单引号：
/usr/bin/sh -c 'ls 1\`'
#3
0
/usr/bin/sh -c "ls '1\`'"