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<p><FONT class=normalfont><B><font color=blue>关于设置命令行提示符(PS1)</font></B></FONT><BR><FONT class=smallfont color=#ff9900>2004-04-23 15:18 pm</FONT><BR><FONT class=normalfont>作者：作者<br>来自：Linux知识宝库<br>联系方式：无名<br><br>将提示符(PS1)设置成当前的路径，但不包括 $HOME<br>
比如：<br>
$HOME=/usr/wuhq<br>
$PWD=/usr/wuhq/src<br>
我想让提示符为：<br>
src&gt;<br>
如果$PWD=/opt/java<br>
我想让提示符为：<br>
/opt/java&gt;<br>
以前看到过相关贴子，但找不着了<br>
先谢过大虾！<br>
<br>
In Korn Shell ,use:<br>
PS1='${PWD##${HOME}}/&gt;'<br>
<br>
尊敬的斑竹：<br>
好像不行唉！<br>
<br>
而且有明显的错误嘛！<br>
我改成<br>
PS1='${PWD}##${HOME}/&gt;'<br>
也不行啊<br>
输出：<br>
/usr/users/weblogic/weblogic##/usr/users/weblogic/&gt;<br>
我用的是<br>
Digital UNIX(好像是)<br>
<br>
<br>
<br>
尊敬的taige：<br>
是被论坛自动替换了，不是笔误。<br>
应该这样写，偶试过了：（注意，偶用的是全角字符）<br>
PS1='${PWD##${HOME｝｝/&gt;'<br>
<br>
斑竹多谢了<br>
<br>
能否再进一步<br>
如我提的第一个要求<br>
$HOME=/usr/wuhq<br>
$PWD=/usr/wuhq/src<br>
我想让提示符为：<br>
src&gt;<br>
而现在的情况下会显示为：<br>
/src&gt;<br>
即我想把"/"去掉，否则容易引起误会 <br>
<br>
yes!<br>
i have done!<br>
<br>
PS1='$｛PWD##"$｛HOME｝/"｝&gt;' <br>
<br>
<br>
不知道斑竹是否就这个问题还有兴趣<br>
现在我遇到的情况是这样：<br>
$HOME=/a/very/long/home/path<br>
我用上面的方法：<br>
PS1='${PWD##${HOME}/}&gt;'<br>
则我在$HOME目录时提示符为：<br>
/a/very/long/home/path&gt;<br>
进入子目录src，提示符为：<br>
src&gt;<br>
我希望在$HOME目录时提示符为：<br>
&gt;<br>
该怎么办？<br>
<br>
你把两个｝中间的/去掉便可以啊。<br>
<br>
那样的话就出现了我先前说的那种情况<br>
在子目录src时，提示符：<br>
/src&gt;<br>
我不想要这个"/"<br>
<br>
我希望第一个字符不是"/"<br>
除非不在$HOME及其子目录中 <br>
<br>
二者只能择其一。<br>
你的要求用${...##...}形式不行。<br>
<br>
OK!<br>
我放弃！<br>
<br>
</FONT><br>
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