Linux中PATH设置

Linux中PATH设置

时间:2009-10-25来源:Online990 作者: Online990点击:1051次

PATH的值是一系列目录,当您运行一个程序时,Linux在这些目录下进行搜寻,用以下命令可以设置PATH的值。

 

直接用export命令

在PATH中加入/data/test/hellow.sh脚本,使该脚本能在其他目录下执行。

[root@localhost /]# cd /data/test

[root@localhost test]# ll

总用量 4

-rwx——  1 root root 32 10月 25 13:02 hellow.sh

[root@localhost test]# echo $PATH       #显示$PATH变量

/usr/kerberos/sbin:/usr/kerberos/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/usr/X11R6/bin:/root/bin

[root@localhost test]# cd /

[root@localhost /]# export PATH=/data/test:$PATH      #在$PATH中加入脚本路径

[root@localhost /]# export|grep test      #查看$PATH

declare -x OLDPWD=”/data/test”

declare -x PATH=”/data/test:/usr/kerberos/sbin:/usr/kerberos/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/usr/X11R6/bin:/root/bin”

 

修改profile文件

[root@localhost /]# vi /etc/profile

export PATH USER LOGNAME MAIL HOSTNAME HISTSIZE INPUTRC    #加入

 

修改.bash文件

[root@localhost /]# vi/root/.bashrc

# .bashrc

# User specific aliases and functions

alias rm=rm -i

alias cp=cp -i

alias mv=mv -i

# Source global definitions

if [ -f /etc/bashrc ]; then

. /etc/bashrc

fi

export PATH=”$PATH:/data/test/”

通过Linux中PATH设置 – online990.

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Mac OS X Tip: Setting PATH environment variables

Mac OS X Tip: Setting PATH environment variables

I’m still getting to grips with this OS X malarkey, and my latest challenge was how to set the PATH environment variables.

I started out wanting to add some aliases for the mysql and mysqladmin commands as I’ve just decided to have a bit of a play with django. On linux I used to edit my .bashrc file to do this, but the version of bash on Mac OS X (10.5.2) doesn’t seem to support this. Hunting around I realised that I should just add the path to these commands to my PATH environment variable, but again: not quite so simple.

I want these commands to be available to everyone, so it turns out you have to edit a file called paths in /etc:

sudo vi /etc/paths

And that was it. Easy when you know how! Oh, and remember to run vi as root using the sudo command….

通过Mac OS X Tip: Setting PATH environment variables.

Android下修改hosts文件

Android下修改hosts文件

2010年1月24日Suzg发表评论阅读评论

由于某些原因,可能需要指定域名对应的IP地址。Android是基于Linux的系统,与Linux类似,通过hosts文件来设置。

在Android下,/etc是link到/system/etc的,我们需要修改/system/etc/hosts来实现。但是这个文件是只读,不能通过shell直接修改。可以通过连接到PC上使用adb来修改。步骤如下:

1、获得root权限:adb root

2、设置/system为可读写:adb remount

3、将hosts文件复制到PC:adb pull /system/etc/hosts

4、修改PC机上文件

5、将PC机上文件复制到手机:adb push/system/etc/hosts

如果要查看是否修改成功,可以在PC上执行adb shell,运行cat /system/etc/hosts;或者在手机上运行cat /system/etc/hosts。

在Android 1.6系统中,hosts文件格式有一点与PC机Linux不同:不能在一行中一个IP对应多个域名,比如:

127.0.0.1      host1.example.com host2.example.com host3.example.com

在大多PC机Linux系统是合法的,但不能在Android 1.6上起作用,需要拆成每个域名一行才能使用:

127.0.0.1      host1.example.com

127.0.0.1      host2.example.com

127.0.0.1      host3.example.com

通过SuNote » Android下修改hosts文件.

I’d rather be with you – Joshua Radin

http://www.tudou.com/programs/view/4g_KSgxNwOU/
歌词:

Sitting here, on this lonely dock

坐下来,在这孤独的码头上

Watch the rain play on the ocean top

看着雨在大海与天空交界上玩耍

All the things I feel I need to say

我要说出感受到的所有事情

I can’t explain in any other way

但我又不会用其他方法解释

I need to be bold

我要变得勇敢

Need to jump in the cold water

要跳进寒冷的冬天

Need to grow older with a girl like you

要和一个像你一样的女孩度过岁月

Finally see you are naturally

最后看见自然的你

The one to make it so easy

一个让一切变得简单的人

When you show me the truth

当你向我展示真相时

Yeah, I’d rather be with you

嗳,我宁愿和你在一起

Say you want the same thing too

说你也想要同样的东西

Now here’s the sun, come to dry the rain

如今太阳就在这儿,蒸发雨水

Warm my shoulders and relieve my pain

温暖我的肩膀,减轻我的痛苦

You’re the one thing that I’m missing here

我唯一思念的就是你

With you beside me I no longer fear

只有你在我身边,我就不再恐惧

I need to be bold

我要变得勇敢

Need to jump in the cold water

要跳进寒冷的冬天

Need to grow older with a girl like you

要和一个像你一样的女孩度过岁月

Finally see you are naturally

最后看见自然的你

The one to make it so easy

一个让一切变得简单的人

When you show me the truth

当你向我展示真相时

Yeah, I’d rather be with you

嗳,我宁愿和你在一起

Say you want the same thing too

说你也想要同样的东西

I could have saved so much time for us

我本来可以为我们腾出更多时间

Had I seen the way to get to where I am today

我知道自己现在身在何方

You waited on me for so long

你等了我很长时间

So now, listen to me say:

所以现在,听我说:

I need to be bold

我要变得勇敢

Need to jump in the cold water

要跳进寒冷的冬天

Need to grow older with a girl like you

要和一个像你一样的女孩度过岁月

Finally see you are naturally

最后看见自然的你

The one to make it so easy

一个让一切变得简单的人

When you show me the truth

当你向我展示真相时

Yeah, I’d rather be with you

嗳,我宁愿和你在一起

Say you want the same thing too

说你也想要同样的东西

Say you feel the way I do

说你也感受到我所感受的一切

通过I’d rather be with you – Joshua Radin – 麦田音乐网.