[英]How to correctly pipe commands in Cygwin (Using Windows)?
I'm trying to run experiments on a text file to get word frequencies. 我正在尝试对文本文件进行实验以获取单词频率。 I tried using the following command: 我尝试使用以下命令:
gawk -F"[ ,'\".]" -v RS="" '{for(i=1;i<=NF;i++) words[$i]++;}END{for (i in words) print words[i]" "i}' myfile.txt | uniq -c | sort -nr | head -10
But I get the following error: 但是我收到以下错误:
gawk: cmd. line:1: fatal: cannot open file '|' for reading (No such file or directory)
I read somewhere that ';' 我在某处读到“;” may be used instead of '|' 可以代替“ |” on Windows machines, although this results in a similar error. 在Windows计算机上,尽管这会导致类似的错误。
It seems as though it is reading the first instance of '|' 似乎正在读取“ |”的第一个实例 as a file name. 作为文件名。 Is this the correct way of piping on a windows machine? 这是在Windows机器上进行配管的正确方法吗? Is piping possible on a windows machine using Cygwin? 使用Cygwin是否可以在Windows机器上进行管道输送?
EDIT: I added cygwin to windows PATH variable and then used cmd window. 编辑:我将cygwin添加到Windows PATH变量,然后使用cmd窗口。 If i wanted to actually use cygwin.exe, does that mean I would have to place any files I wanted to edit within C:/cygwin ? 如果我想实际使用cygwin.exe,是否表示我必须将要编辑的所有文件放在C:/ cygwin中?
OK, now I understand - don't do that! 好,现在我明白了-别那样! Execute cygwin commands from cygwin, not from Windows. 从cygwin而不是Windows执行cygwin命令。 To execute a cygwin command on any file, just give the command the full path to the file (but starting with /cygdrive/
), it doesn't have to be under C:/cygwin
, eg from a cygwin shell window to see what's in the common Windows folder C:\\Documents and Settings
: 要在任何文件上执行cygwin命令,只需为命令提供文件的完整路径(但以/cygdrive/
开头),它不必位于C:/cygwin
,例如从cygwin shell窗口中查看内容在常见的Windows文件夹C:\\Documents and Settings
:
$ ls -Q '/cygdrive/c/Documents and Settings'
"All Users" "Default" "Default User" "desktop.ini" "emorton" etc...
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