blocks|key|355684|text|出于参考目的，我在cat命令之前遗漏了$x命令。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|355685|因此，守则应改为：|355686|+#!+/usr/bin/tcsh+-f+

echo+please+enter+files+list+

set+x+=+$<

foreach+i+('cat+$x')++++
echo+$i+++++
end|code-block|syntax|javascript|355687|entityMap^0|9|3|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|R|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|S|8|@]|D|@]|E|$K|L]]|$1|M|3|-4|5|6|7|T|8|@]|D|@]|E|$]]]|N|$]]

For reference purposes, I was missing the <code>cat</code> command, before the $x.

So the code should read:

<pre><code> #! /usr/bin/tcsh -f 

echo please enter files list 

set x = $&lt;

foreach i ('cat $x') 
echo $i 
end
</code></pre>

blocks|key|1928083|text|如果您确实必须使用tcsh，那么下面是执行此操作的主要方法：|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1928084|#!/usr/bin/tcsh+-f
echo+please+enter+files+list
set+x+=+$<

foreach+line+("+`cat+$x`+")
+++echo+"$line"
end|code-block|syntax|javascript|1928085|重要的是要确保cat命令介于。区别在于，否则，foreach语句将逐字读取，而双引用版本将逐行读取。逻辑是..。有问题。另外，我在line语句中引用了变量echo，因为当它碰到空行时，它实际上会发出抱怨。|style|CODE|1928086|在bash中，您只需做以下好事：|1928087|#!/usr/bin/env+bash
echo+"Please+enter+files+list"
file=""
while+[[+!+-e+$file+]];+do+read+-r+file;+done

while+read+-r+line;+do
++echo+"$line"
done+<+"$file"|1928088|非常重要的是：|1928089|CSH程序被认为是有害的|unordered-list-item|1928090|不使用C+shell的十大原因|1928091|entityMap|0|LINK|mutability|MUTABLE|url|/questions/tagged/tcsh|1|/questions/tagged/bash|2|http://www.faqs.org/faqs/unix-faq/shell/csh-whynot/|3|http://www.grymoire.com/unix/CshTop10.txt^0|9|4|0|0|0|7|3|N|7|1T|4|25|4|0|1|4|1|0|0|0|0|C|2|0|0|F|3|0^^$0|@$1|2|3|4|5|6|7|1B|8|@]|9|@$A|1C|B|1D|1|1E]]|C|$]]|$1|D|3|E|5|F|7|1F|8|@]|9|@]|C|$G|H]]|$1|I|3|J|5|6|7|1G|8|@$A|1H|B|1I|K|L]|$A|1J|B|1K|K|L]|$A|1L|B|1M|K|L]|$A|1N|B|1O|K|L]]|9|@]|C|$]]|$1|M|3|N|5|6|7|1P|8|@]|9|@$A|1Q|B|1R|1|1S]]|C|$]]|$1|O|3|P|5|F|7|1T|8|@]|9|@]|C|$G|H]]|$1|Q|3|R|5|6|7|1U|8|@]|9|@]|C|$]]|$1|S|3|T|5|U|7|1V|8|@]|9|@$A|1W|B|1X|1|1Y]]|C|$]]|$1|V|3|W|5|U|7|1Z|8|@]|9|@$A|20|B|21|1|22]]|C|$]]|$1|X|3|-4|5|6|7|23|8|@]|9|@]|C|$]]]|Y|$Z|$5|10|11|12|C|$13|14]]|15|$5|10|11|12|C|$13|16]]|17|$5|10|11|12|C|$13|18]]|19|$5|10|11|12|C|$13|1A]]]]

If you really really really really have to use <a href="/questions/tagged/tcsh" class="post-tag" title="show questions tagged &#39;tcsh&#39;" rel="tag">tcsh</a>, then the following is the propper way to do it:

<pre><code>#!/usr/bin/tcsh -f
echo please enter files list
set x = $&lt;

foreach line (" `cat $x` ")
 echo "$line"
end
</code></pre>

It is important to see that the <code>cat</code> command is between &lt;double-quotes&gt;. The difference is that otherwise, the <code>foreach</code> statement will read word-by-word, while the double-quoted version will read line-by-line. The logic of this is ... questionable. Also, I quoted the variable <code>line</code> in the <code>echo</code> statement, because it will actually complain when it hits an empty line.

In <a href="/questions/tagged/bash" class="post-tag" title="show questions tagged &#39;bash&#39;" rel="tag">bash</a>, you would just do the following nice thing:

<pre><code>#!/usr/bin/env bash
echo "Please enter files list"
file=""
while [[ ! -e $file ]]; do read -r file; done

while read -r line; do
 echo "$line"
done &lt; "$file"
</code></pre>

Very important reads:

<ul>
<li><a href="http://www.faqs.org/faqs/unix-faq/shell/csh-whynot/" rel="nofollow noreferrer">CSH PROGRAMMING CONSIDERED HARMFUL</a></li>
<li><a href="http://www.grymoire.com/unix/CshTop10.txt" rel="nofollow noreferrer">Top Ten Reasons not to use the C shell</a></li>
</ul>

blocks|key|355733|text|在tcsh脚本中有两个错误：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|355734|在foreach条件下，文件名前面缺少cat命令。|ordered-list-item|355735|使用直接单引号(‘')，而不是反引号()在您的预期条件。|355736|下面的脚本应该适用于您。|355737|#!/usr/bin/tcsh+-f

echo+please+enter+files+list+

set+x+=+$<

foreach+i(`cat+$x`)
++echo+$i
end|code-block|syntax|javascript|355738|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|Q|8|@]|9|@]|A|$]]|$1|E|3|F|5|D|7|R|8|@]|9|@]|A|$]]|$1|G|3|H|5|6|7|S|8|@]|9|@]|A|$]]|$1|I|3|J|5|K|7|T|8|@]|9|@]|A|$L|M]]|$1|N|3|-4|5|6|7|U|8|@]|9|@]|A|$]]]|O|$]]

You have two mistakes in your tcsh script:

<ol>
<li>Missing cat command in front of the filename in your foreach condition.</li>
<li>Use of straight single quotes(' ') instead of backquotes (``) in your foreach condition.</li>
</ol>

The following script should work for you.

<pre><code>#!/usr/bin/tcsh -f

echo please enter files list 

set x = $&lt;

foreach i(`cat $x`)
 echo $i
end
</code></pre>

I am trying to pass a user-input variable (a file name) into a foreach loop in tcsh. The user entered variable is, for example, "files.list" (saved in the same folder as the Shell Script is saved, and is being run from).

Here is my code:

<pre><code> #! /usr/bin/tcsh -f 

echo please enter files list 

set x = $&lt;

foreach i ('$x') 
echo $i 
end
</code></pre>

What I want is for each of the words in "files.list" to be output to the screen. Files.list contains 5 lines, each with a file name. 

<pre><code>myScript22.sh
Mad45.sh
Number32.sh
killBill.sh
gotMilk.sh
bugslife.sh
</code></pre>

I get an error - "foreach: Words not parenthesized."

Could it be that <code>'cat $x'</code> isn't calling the x variable correctly? If so, how do I get the file set up so it's contents can be looped thru? 

Any help is appreciated!

TCSH error in foreach loop: files.list: Command not found

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我试图将用户输入变量(文件名)传递到tcsh中的foreach循环中。例如，用户输入的变量是"files.list“(保存在与保存Shell脚本相同的文件夹中，并且正在运行)。这是我的代码： #! /usr/bin/tcsh -f echo please enter files list set x = $<forea...

问foreach循环中的TCSH错误: files.list:命令未找到
EN

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问foreach循环中的TCSH错误: files.list:命令未找到EN