求脚本！！！！

[killer2001]

我不知道是什么导致这种差异

++ tr -d '\n'

位置乱了。跑到最前面去了。
直接shell中分开输入，以管道为间隔，若前一个输出正确则继续一个。

代码： 全选

grep "compt" a.dat 
grep "compt" a.dat | awk -F "=" '{print "\"" $2 "\"," }'
grep "compt" a.dat | awk -F "=" '{print "\"" $2 "\"," }' | tr a-z A-Z 
grep "compt" a.dat | awk -F "=" '{print "\"" $2 "\"," }' | tr a-z A-Z | tr -d '\n'
grep "compt" a.dat | awk -F "=" '{print "\"" $2 "\"," }' | tr a-z A-Z | tr -d '\n' | sed 's/,$//'

或者新建一个用户试试。我实在搞不懂了。
前面神说了，调试。。。

可能是系统的问题，我的是redhat, 分开输入 tr -d '\n'还是跑到前面去了，呵呵

[uidt5100@home]$ grep "compt" a.dat
y1=compt_a
y2=compt_b
y3=compt_c
[uidt5100@home]$ grep "compt" a.dat | awk -F "=" '{print "\"" $2 "\"," }'
",ompt_a
",ompt_b
"compt_c",
[uidt5100@home]$ grep "compt" a.dat | awk -F "=" '{print "\"" $2 "\"," }' | tr a-z A-Z
",OMPT_A
",OMPT_B
"COMPT_C",
[uidt5100@home]$ grep "compt" a.dat | awk -F "=" '{print "\"" $2 "\"," }' | tr a-z A-Z | tr -d '\n'
","COMPT_C",[uidt5100@home]$ grep "compt" a.dat | awk -F "=" $2 "\"," }' | tr a-z A-Z | tr -d '\n' | sed 's/,$//'
","COMPT_C"[uidt5100@home]$

[killer2001]

十二楼的可以用啊：

kose5@kose5-Aspire-4552:~$ data=$(grep "compt" a.dat | awk -F "=" '{print "\"" $2 "\"," }' | tr a-z A-Z | tr -d '\n' | sed 's/,$//')
kose5@kose5-Aspire-4552:~$ echo "ss=$data"
ss="COMPT_A","COMPT_B","COMPT_C","COMPT_D","COMPT_E"
kose5@kose5-Aspire-4552:~$

虽然awk不用另开那么多进程：
awk -F= '{if (f == "") printf "ss=\"";else printf f "\",\"";f=toupper($2)} END{print toupper($2) "\""}' a.dat
（lz的shell是什么shell?)

我不知道是什么shell，但前面运行的脚本里加了#!/bin/bash的啊

[uidt5100@home]$ bash --version
GNU bash, version 4.1.2(1)-release (x86_64-redhat-linux-gnu)
Copyright (C) 2009 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>

This is free software; you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
[uidt5100@home]$ awk --version
GNU Awk 3.1.7
Copyright (C) 1989, 1991-2009 Free Software Foundation.

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program. If not, see http://www.gnu.org/licenses/.
[uidt5100@home]$ tr --version
tr (GNU coreutils) 8.4
Copyright (C) 2010 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Written by Jim Meyering.
[uidt5100@home]$ echo $SHELL
/bin/bash
[uidt5100@home]$

[link_01]

看你给的例子，文本很简单，不就是查找是不是包含compt，然后对其用=分割取第二列组合字符串吗？
用printf而不是print可以省掉换行符，完事直接echo。

[我就是我2]

最重要的是，打印完之后不自动换行。搞不懂。此事非本人目前能解。高手啊！出现吧！

[killer2001]

找到原因了，我是用putty登陆到服务器上做的。
以前的很多命令结果都没问题，只是在本机上显示出了问题。

谢谢各位！

[link_01]

cat c.txt
c=abc
y1=compt_a
y2=compt_b
y3=compt_c
x=3
y=4
y4=compt_d

代码： 全选

link01@debian:~/src/shell$ ss=$(awk -F"=" '/compt/{ printf "\"%s\",",$2 }' c.txt|sed -nr 's/(.*),$/\1/p' |tr a-z A-Z)
link01@debian:~/src/shell$ echo "ss=$ss"
ss="COMPT_A","COMPT_B","COMPT_C","COMPT_D"
link01@debian:~/src/shell$ ss=$(awk -F"=" '/compt/{ printf "\"%s\",",$2 }' c.txt|sed -nr 's/(.*),$/\1/p' |tr a-z A-Z);echo "ss=$ss"
ss="COMPT_A","COMPT_B","COMPT_C","COMPT_D"
link0x@debian:~/src/shell$ 

这不显示很正常嘛

[我就是我2]

把标准输出重定向到文件 再cat

[killer2001]

把标准输出重定向到文件 再cat

你说得的很对，重定向到文件就看见真正的结果了。
以前我这里显示的结果都不对（实际是对的），是因为我这里离服务器有点延时，所以看上去结果颠倒了。