在linux中创建一个新的环境变量[openwrt]

I want to use environment variable to save value and after reboot the system, this variable must contain the last value saved
I try this

我想使用环境变量来保存值，在重新启动系统后，这个变量必须包含最后保存的值

root@OpenWrt:~# BOOTT=1
root@OpenWrt:~# export
export HOME='/root'
export LOGNAME='root'
export PATH='/bin:/sbin:/usr/bin:/usr/sbin'
export PS1='\u@\h:\w\$ '
export PWD='/root'
export SHELL='/bin/ash'
export SSH_CONNECTION='192.168.1.110 2961 192.168.1.122 22'
export SSH_TTY='/dev/pts/0'
export TERM='xterm'
export USER='root'
root@OpenWrt:~# export BOOTT
root@OpenWrt:~# export
export BOOTT='1'
export HOME='/root'
export LOGNAME='root'
export PATH='/bin:/sbin:/usr/bin:/usr/sbin'
export PS1='\u@\h:\w\$ '
export PWD='/root'
export SHELL='/bin/ash'
export SSH_CONNECTION='192.168.1.110 2961 192.168.1.122 22'
export SSH_TTY='/dev/pts/0'
export TERM='xterm'
export USER='root'
root@OpenWrt:~#
root@OpenWrt:~# reboot
root@OpenWrt:~#

==> after reboot

= = >后重新启动

root@OpenWrt:~# export
export HOME='/root'
export LOGNAME='root'
export PATH='/bin:/sbin:/usr/bin:/usr/sbin'
export PS1='\u@\h:\w\$ '
export PWD='/root'
export SHELL='/bin/ash'
export SSH_CONNECTION='192.168.1.110 3217 192.168.1.122 22'
export SSH_TTY='/dev/pts/0'
export TERM='xterm'
export USER='root'
root@OpenWrt:~# echo $BOOTT
root@OpenWrt:~#

so can I obtain env variable which can saved value after reboot !!

所以我可以获得env变量，它可以在重新启动后保存值!!

2 个解决方案

#1

Add the following to your $HOME/.profile:

在$HOME/.profile中添加以下内容:

BOOTT=1
export BOOTT

#2

Or if you want to make those variables globally, put them in /etc/profile and source this file in .bashrc of each user.

或者，如果您想使这些变量全局化，请将它们放在/etc/profile中，并将每个用户的.bashrc中作为该文件的源。

#1