rh9如何改变环境变量?
装了一个javasdk在/usr/java想把path设进去
就是在任何目录下都可以执行javac等命令
是不是应该改profile文件?
怎么改?
pathmunge () {
if ! echo $PATH | /bin/egrep -q "(^|:)$1($|:)" ; then
if [ "$2" = "after" ] ; then
PATH=$PATH:$1
else
PATH=$1:$PATH
fi
fi
}
# Path manipulation
if [ `id -u` = 0 ]; then
pathmunge /sbin
pathmunge /usr/sbin
pathmunge /usr/local/sbin
fi
pathmunge /usr/X11R6/bin after
unset pathmunge
# No core files by default
ulimit -S -c 0 > /dev/null 2>&1
USER="`id -un`"
LOGNAME=$USER
MAIL="/var/spool/mail/$USER"
HOSTNAME=`/bin/hostname`
HISTSIZE=1000
if [ -z "$INPUTRC" -a ! -f "$HOME/.inputrc" ]; then
INPUTRC=/etc/inputrc
fi
export PATH USER LOGNAME MAIL HOSTNAME HISTSIZE INPUTRC
for i in /etc/profile.d/*.sh ; do
if [ -r "$i" ]; then
. $i
fi
done
unset i No.You should edit ~/.bash_profile in your home directory.
Here's my sample .bash_profile
**************************************************
# .bash_profile
# Get the aliases and functions
if [ -f ~/.bashrc ]; then
. ~/.bashrc
fi
# User specific environment and startup programs
PATH=$PATH:$HOME/bin:/usr/local/j2sdk1.4.1/bin:/u1/rsi/idl/bin
PS1="[\w]"
export PATH PS1
unset USERNAME
*****************************************************
Just add /usr/java to the end of the PATH line.":" is the seperator.
If you want to just use it once, you can always
#export PATH=$PATH:/usr/java 收到
谢谢 在PROFILE文件的末尾加入：
JAVA_HOME=/usr/java/j2sdk_1.4.2
JRE=/usr/java/j2sdk_1.4.2/jre
CLASSPATH=$JAVA_HOME/lib:$JRE/lib:.
PATH=$PATH:$JAVA_HOME/bin:$JRE/bin:.
export JAVA_HOME JRE CLASSPATH PATH
就可以了。
楼上说的的是当前用户的环境，如果新建一个用户就需要再设置一下~/.bash_profile 文件了。 在PROFILE文件的末尾加入：
JAVA_HOME=/usr/java/j2sdk_1.4.2
JRE=/usr/java/j2sdk_1.4.2/jre
CLASSPATH=$JAVA_HOME/lib:$JRE/lib:.
PATH=$PATH:$JAVA_HOME/bin:$JRE/bin:.
export JAVA_HOME JRE CLASSPATH PATH
就可以了。
楼上说的的是当前用户的环境，如果新建一个用户就需要再设置一下~/.bash_profile 文件了。
Yes, this is a better way to do it for system wide purposes.Thanks! thx
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