windows Cygwin bash 文件的帮助
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Help with Cygwin bash file
提问by Mestika
I have a bash file, which I'm trying to run in Cygwin on a Windows 7 platform, but I gives me some odd errors when doing so. The bash file works on my Linux system. The bach file looks like this:
我有一个 bash 文件，我试图在 Windows 7 平台上的 Cygwin 中运行它，但是这样做时我给了我一些奇怪的错误。bash 文件适用于我的 Linux 系统。bach 文件如下所示：
for ((r=0; r <10; r++))
netcat localhost 4444 < myfile.file &
done
wait
but I'm getting an error for my for-loop. More precise it writes:
但是我的 for 循环出错了。更准确的是它写道：
./tuning_test.bsh: line 1: syntax error near unexpected token `('
'/tuning_test.bsh: line 1: `?for ((r=0; r <10; r++))
I do not understand it because I was sure that I've a working bash file on my Linux. I even tried to find a for-loop example from a Linux-bash site and run it but with same error.
我不明白，因为我确信我的 Linux 上有一个工作 bash 文件。我什至试图从 Linux-bash 站点找到一个 for-loop 示例并运行它，但出现相同的错误。
I'm brand new to Cygwin and doesn't know if it has some small quirks or some other thing I have to be aware of and I've tried to look through the documentation and FAQ on their homepage.
我是 Cygwin 的新手，不知道它是否有一些小怪癖或其他一些我必须注意的事情，我试图查看他们主页上的文档和常见问题解答。
Sincere
真诚
Mestika
梅斯蒂卡
回答by Paul R
You seem to be missing a doand a shebang line:
你似乎缺少一个do和一个shebang行：
#!/bin/bash
for (( r=0; r<10; r++ ))
do
netcat localhost 4444 < myfile.file &
done
wait
回答by Mestika
yeah I found out that my texteditor (notepad++) was sat to DOS/Windows formatting, I just changed it to UNIX and it worked :-)
是的，我发现我的文本编辑器（记事本++）被设置为 DOS/Windows 格式，我只是将其更改为 UNIX 并且它起作用了:-)
回答by Oleg Razgulyaev
you should properly mark loop block with do .. done
'do' missed
你应该用 do .. done
'do'正确标记循环块
回答by Oleg Razgulyaev
Perhaps the Cygwin version of bash is a lot older than the Linux one? This works for me with MSYS bash:
也许 bash 的 Cygwin 版本比 Linux 版本老得多？这适用于 MSYS bash：
for ((r=0; r <10; r++))
do
echo $r
done
Note that I've added the dokeyword to the loop. You can also try writing the loop as:
请注意，我已将do关键字添加到循环中。您还可以尝试将循环编写为：
for r in 0 1 2 3 4 5 6 7 8 9
do
echo $r
done
回答by Joe
The below script will execute ssh on ports 0-65000 and output all logs for each execution to a file called log.txt
以下脚本将在端口 0-65000 上执行 ssh，并将每次执行的所有日志输出到名为 log.txt 的文件中
Replace "host" in ssh -tt -p $r hostwith the host address you wish to "ssh" into.
将“host”替换ssh -tt -p $r host为您希望“ssh”到的主机地址。
The -tt command forces tty allocation and stops the allocation of a pseudo-terminal. (Forces a shell)
-tt 命令强制 tty 分配并停止伪终端的分配。（强制壳）
#!/bin/bash
for (( r=0; r<65000; r++ ))
do
ssh -tt -p $r host -E log.txt < log.txt
done
wait
