blocks|key|2832843|text|1解决方案：+In+awk它不像BASH那样工作，我们有一个单独的print函数，echo不能在其中工作。您可以尝试如下(这将删除从.到最后一行的所有传递变量的所有部分。|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|CODE|entityRanges|data|2832844|echo+"$f"+%7C+awk+'{for(i=1;i<=NF;i%2B%2B){sub(/\..*/,"",$i);print+$i}}'
HDAC3_CTRL_Diff-D0_A
HDAC3_CTRL_Diff-D0_B|code-block|syntax|javascript|2832845|第二种解决方案，如果您想查找特定的字符串并从其中移除某些部分，请尝试如下：|2832846|echo+"$f"++%7C+awk+'match($0,/HDAC3[%5E+]*/){val=substr($0,RSTART,RLENGTH);sub(/\..*/,"",val);print+val}'
HDAC3_CTRL_Diff-D0_A|2832847|或(一种非一元线性溶液形式)：|2832848|f="HDAC3_CTRL_Diff-D0_A.dedup.sorted.bam++HDAC3_CTRL_Diff-D0_B.dedup.sorted.bam"
echo+"$f"++%7C+
awk+'
+++match($0,/HDAC3[%5E+]*/){
++++++val=substr($0,RSTART,RLENGTH)
++++++sub(/\..*/,"",val)
++++++print+val
+++}
'|2832849|第三种解决方案：，以防有人想要查找确切的字符串，然后尝试如下。|2832850|echo+"$f"++%7C+awk+'match($0,/HDAC3_CTRL_Diff-D[0-9]%2B_A/){print+substr($0,RSTART,RLENGTH)}'|2832851|第4种解决方案：在不同字段的行中可能出现多次_A，然后尝试如下。|2832852|假设变量f具有以下值。|2832853|echo+"$f"
HDAC3_CTRL_Diff-D0_A.dedup.sorted.bam++HDAC3_CTRL_Diff-D0_B.dedup.sorted.bam++HDAC3_CTRL_Diff-D01_A.dedup.sorted.bam|2832854|现在当我们运行新代码：：时|2832855|echo+"$f"+%7C+awk+'{for(i=1;i<=NF;i%2B%2B){if($i+~+/HDAC3_CTRL_Diff-D[0-9]%2B_A/){print+$i}}}'+
HDAC3_CTRL_Diff-D0_A.dedup.sorted.bam
HDAC3_CTRL_Diff-D01_A.dedup.sorted.bam|2832856|OP尝试中发现的问题：|2832857|awk中没有echo函数，而是有“`print”。|unordered-list-item|2832858|awk，当你试图像awk......$f那样通过时，它意味着你要把一个Input_file传递给它，这不是这样的，所以你不应该这样做。|2832859|如果它是要传递给awk并进行处理的文本，则尝试echo+"text+here...."+%7C+awk+code+here.或awk+.....+<<<"$var"作为示例。|2832860|entityMap^0|0|6|A|3|X|5|15|4|1U|1|0|0|0|11|0|0|0|F|0|0|0|V|0|0|0|W|M|2|0|0|B|4|1|0|0|0|D|0|0|0|B|0|0|P|0|3|6|4|0|0|1V|0|3|9|B|0|0|2D|8|3|N|11|1P|J|0^^$0|@$1|2|3|4|5|6|7|1I|8|@$9|1J|A|1K|B|C]|$9|1L|A|1M|B|D]|$9|1N|A|1O|B|D]|$9|1P|A|1Q|B|D]|$9|1R|A|1S|B|D]]|E|@]|F|$]]|$1|G|3|H|5|I|7|1T|8|@]|E|@]|F|$J|K]]|$1|L|3|M|5|6|7|1U|8|@$9|1V|A|1W|B|C]]|E|@]|F|$]]|$1|N|3|O|5|I|7|1X|8|@]|E|@]|F|$J|K]]|$1|P|3|Q|5|6|7|1Y|8|@$9|1Z|A|20|B|C]]|E|@]|F|$]]|$1|R|3|S|5|I|7|21|8|@]|E|@]|F|$J|K]]|$1|T|3|U|5|6|7|22|8|@$9|23|A|24|B|C]]|E|@]|F|$]]|$1|V|3|W|5|I|7|25|8|@]|E|@]|F|$J|K]]|$1|X|3|Y|5|6|7|26|8|@$9|27|A|28|B|C]|$9|29|A|2A|B|D]]|E|@]|F|$]]|$1|Z|3|10|5|6|7|2B|8|@$9|2C|A|2D|B|C]|$9|2E|A|2F|B|D]]|E|@]|F|$]]|$1|11|3|12|5|I|7|2G|8|@]|E|@]|F|$J|K]]|$1|13|3|14|5|6|7|2H|8|@$9|2I|A|2J|B|C]]|E|@]|F|$]]|$1|15|3|16|5|I|7|2K|8|@]|E|@]|F|$J|K]]|$1|17|3|18|5|6|7|2L|8|@$9|2M|A|2N|B|C]]|E|@]|F|$]]|$1|19|3|1A|5|1B|7|2O|8|@$9|2P|A|2Q|B|C]|$9|2R|A|2S|B|D]|$9|2T|A|2U|B|D]]|E|@]|F|$]]|$1|1C|3|1D|5|1B|7|2V|8|@$9|2W|A|2X|B|C]|$9|2Y|A|2Z|B|D]|$9|30|A|31|B|D]]|E|@]|F|$]]|$1|1E|3|1F|5|1B|7|32|8|@$9|33|A|34|B|C]|$9|35|A|36|B|D]|$9|37|A|38|B|D]|$9|39|A|3A|B|D]]|E|@]|F|$]]|$1|1G|3|-4|5|6|7|3B|8|@]|E|@]|F|$]]]|1H|$]]

1st Solution: In <code>awk</code> it doesn't work like BASH we have a separate <code>print</code>function for it <code>echo</code> wouldn't work in it. You could try following(this will remove everything from <code>.</code> to till last of line for all parts of your passed variable.

<pre><code>echo "$f" | awk '{for(i=1;i&lt;=NF;i++){sub(/\..*/,"",$i);print $i}}'
HDAC3_CTRL_Diff-D0_A
HDAC3_CTRL_Diff-D0_B
</code></pre>

<hr>

<hr>

2nd solution In case you want to look for specific string and remove some parts from it then try following:

<pre><code>echo "$f" | awk 'match($0,/HDAC3[^ ]*/){val=substr($0,RSTART,RLENGTH);sub(/\..*/,"",val);print val}'
HDAC3_CTRL_Diff-D0_A
</code></pre>

OR(a non-one liner form of solution):

<pre><code>f="HDAC3_CTRL_Diff-D0_A.dedup.sorted.bam HDAC3_CTRL_Diff-D0_B.dedup.sorted.bam"
echo "$f" | 
awk '
 match($0,/HDAC3[^ ]*/){
 val=substr($0,RSTART,RLENGTH)
 sub(/\..*/,"",val)
 print val
 }
'
</code></pre>

3rd Solution: In case anyone wants to look for exact string then try following.

<pre><code>echo "$f" | awk 'match($0,/HDAC3_CTRL_Diff-D[0-9]+_A/){print substr($0,RSTART,RLENGTH)}'
</code></pre>

<hr>

<hr>

4th Solution: In case there could multiple occurrences of <code>_A</code> in lines of different fields then try following.

Assuming that your variable <code>f</code> is having following values.

<pre><code>echo "$f"
HDAC3_CTRL_Diff-D0_A.dedup.sorted.bam HDAC3_CTRL_Diff-D0_B.dedup.sorted.bam HDAC3_CTRL_Diff-D01_A.dedup.sorted.bam
</code></pre>

Now when we run the new code:

<pre><code>echo "$f" | awk '{for(i=1;i&lt;=NF;i++){if($i ~ /HDAC3_CTRL_Diff-D[0-9]+_A/){print $i}}}' 
HDAC3_CTRL_Diff-D0_A.dedup.sorted.bam
HDAC3_CTRL_Diff-D01_A.dedup.sorted.bam
</code></pre>

<hr>

<hr>

Problems found in OP's attempt:

<ul>
<li><code>awk</code> don't have <code>echo</code> function in it, it has `print instead.</li>
<li><code>awk</code> when you are trying to pass like <code>awk......$f</code> it means you are passing an Input_file to it which is NOT the case here so you shouldn't do it.</li>
<li>If it is a text which you want to pass to <code>awk</code> and process then try either <code>echo "text here...." | awk code here.</code> OR <code>awk ..... &lt;&lt;&lt;"$var"</code> for an example.</li>
</ul>

blocks|key|1643255|text|我不确定echo是否存在于awk中，您需要的是print，并且只打印第一个字段$1|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1643256|$+f="HDAC3_CTRL_Diff-D0_A.dedup.sorted.bam++HDAC3_CTRL_Diff-D0_B.dedup.sorted.bam"
$+echo+$f+%7C+awk+'/_A/+{+print+$1+}'+%7C+sed+'s/.dedup.sorted.bam//g'
HDAC3_CTRL_Diff-D0_A|code-block|syntax|javascript|1643257|打开文件的错误是因为您在命令行上将$f传递给awk，而不是将变量的内容传递到awk。awk的命令行参数被视为文件名。您可以将实际的文件名放在那里，但不能放在这个$f变量(我假设这个变量包含输入文件的一些示例内容，而不是输入文件的名称)。|1643258|entityMap^0|4|4|N|5|13|2|0|0|H|2|M|3|12|3|16|3|28|2|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]|$9|R|A|S|B|C]|$9|T|A|U|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|V|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|W|8|@$9|X|A|Y|B|C]|$9|Z|A|10|B|C]|$9|11|A|12|B|C]|$9|13|A|14|B|C]|$9|15|A|16|B|C]]|D|@]|E|$]]|$1|M|3|-4|5|6|7|17|8|@]|D|@]|E|$]]]|N|$]]

I'm not sure <code>echo</code> exists in awk, you'll want <code>print</code> instead, and print only the first field, <code>$1</code>:

<pre><code>$ f="HDAC3_CTRL_Diff-D0_A.dedup.sorted.bam HDAC3_CTRL_Diff-D0_B.dedup.sorted.bam"
$ echo $f | awk '/_A/ { print $1 }' | sed 's/.dedup.sorted.bam//g'
HDAC3_CTRL_Diff-D0_A
</code></pre>

The error about opening files is because you passed <code>$f</code> to <code>awk</code> on the command line, rather than piping the variable's contents into <code>awk</code>. Command line arguments to <code>awk</code> are taken to be file names. You could put your actual filename there, but not this <code>$f</code> variable (which I assume contains some example content of the input file, rather than names of input files).

blocks|key|1643260|text|这就是你想要做的(使用GNU+awk进行多个字符RS)吗？|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1643261|$+echo+"$f"+%7C+awk+-v+RS='\\s%2B'+'sub(/_A\.dedup\.sorted\.bam$/,"_A")'
HDAC3_CTRL_Diff-D0_A|code-block|syntax|javascript|1643262|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Is this what you're trying to do (using GNU awk for multi-char RS)?

<pre><code>$ echo "$f" | awk -v RS='\\s+' 'sub(/_A\.dedup\.sorted\.bam$/,"_A")'
HDAC3_CTRL_Diff-D0_A
</code></pre>

I have a list of file names - simulated by 

<pre><code>f="HDAC3_CTRL_Diff-D0_A.dedup.sorted.bam HDAC3_CTRL_Diff-D0_B.dedup.sorted.bam"
</code></pre>

I would like my operation to select the text <code>"HDAC3_CTRL_Diff-D0_A.dedup.sorted.bam"</code> and process this to <code>"HDAC3_CTRL_Diff-D0_A"</code>

I am trying 

<pre><code>echo $f | awk '/_A/ { echo }' | sed 's/.dedup.sorted.bam//g' 
</code></pre>

but am getting stuck in the very beginning

<pre><code>awk '/_A/ { echo }' $f 
</code></pre>

gives me the error 

<pre><code>awk: fatal: cannot open file `HDAC3_CTRL_Diff-D0_A.dedup.sorted.bam' for reading (No such file or directory)
</code></pre>

I don't want it to open any file. I would just like it to parse the list to produce a truncated string.

Using awk to display text instead of opening a file

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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我有一个文件名列表-由f="HDAC3_CTRL_Diff-D0_A.dedup.sorted.bam  HDAC3_CTRL_Diff-D0_B.dedup.sorted.bam"我希望我的操作选择文本"HDAC3_CTRL_Diff-D0_A.dedup.sorted.bam"并将其处理为"HDAC3_CTRL_D...

问使用awk显示文本而不是打开文件
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问使用awk显示文本而不是打开文件EN