linux 中 创建环境变量若干方法

 

001、直接修改PATH环境变量

[root@PC1 plink]# ls                    ## 软件目录
LICENSE  plink  plink_linux_x86_64_20230116.zip  prettify  toy.map  toy.ped
[root@PC1 plink]# pwd                   ## 路径
/home/software/plink
[root@PC1 plink]# echo "export PATH=$PATH:/home/software/plink" >> ~/.bashrc ## 修改配置文件
[root@PC1 plink]# source ~/.bashrc      ## 刷新
(base) [root@PC1 plink]# conda deactivate
[root@PC1 plink]# plink | head -n 2     ## 调用测试
PLINK v1.90b7 64-bit (16 Jan 2023)             www.cog-genomics.org/plink/1.9/
(C) 2005-2023 Shaun Purcell, Christopher Chang   GNU General Public License v3

 

002、软连接实现

[root@PC1 plink]# ls
LICENSE  plink  plink_linux_x86_64_20230116.zip  prettify  toy.map  toy.ped
[root@PC1 plink]# plink
bash: plink: command not found...
Similar command is: 'link'
[root@PC1 plink]# readlink -f plink
/home/software/plink/plink
[root@PC1 plink]# ln -s /home/software/plink/plink /bin/
[root@PC1 plink]# plink | head -n 2
PLINK v1.90b7 64-bit (16 Jan 2023)             www.cog-genomics.org/plink/1.9/
(C) 2005-2023 Shaun Purcell, Christopher Chang   GNU General Public License v3

 

003、直接复制

[root@PC1 plink]# ls
LICENSE  plink  plink_linux_x86_64_20230116.zip  prettify  toy.map  toy.ped
[root@PC1 plink]# plink
bash: plink: command not found...
Similar command is: 'link'
[root@PC1 plink]# cp plink /bin/
[root@PC1 plink]# plink | head -n 3
PLINK v1.90b7 64-bit (16 Jan 2023)             www.cog-genomics.org/plink/1.9/
(C) 2005-2023 Shaun Purcell, Christopher Chang   GNU General Public License v3

 

004、命令别名实现

[root@PC1 plink]# ls
LICENSE  plink  plink_linux_x86_64_20230116.zip  prettify  toy.map  toy.ped
[root@PC1 plink]# plink
bash: plink: command not found...
Similar command is: 'link'
[root@PC1 plink]# readlink -f plink
/home/software/plink/plink
[root@PC1 plink]# echo "alias plink=\"/home/software/plink/plink\"" >> ~/.bashrc
[root@PC1 plink]# source ~/.bashrc
(base) [root@PC1 plink]# conda deactivate
[root@PC1 plink]# plink | head -n 3
PLINK v1.90b7 64-bit (16 Jan 2023)             www.cog-genomics.org/plink/1.9/
(C) 2005-2023 Shaun Purcell, Christopher Chang   GNU General Public License v3