Linux | 環境變量PATH+編寫第一個自己的命令

whois@ubuntu:~$ mkdir bin whois@ubuntu:~$ export PATH=/home/whois/bin/:$PATH whois@ubuntu:~$ echo $PATH /home/whois/bin/:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:/usr/local/tool/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/bin:/home/whois/qt6/Tools/QtCreator/bin/

export PATH=$PATH:/home/whois/qt6/Tools/QtCreator/bin/

source .bashrc

whois@ubuntu:~$ mkdir test whois@ubuntu:~$ cp eat test/ whois@ubuntu:~$ cd test/ whois@ubuntu:~/test$ ls eat whois@ubuntu:~/test$ export PATH=/home/whois/test/:$PATH whois@ubuntu:~/test$ echo $PATH /home/whois/test/:/home/whois/bin/:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:/usr/local/tool/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/bin:/home/whois/qt6/Tools/QtCreator/bin/ whois@ubuntu:~/test$ eat 快去吃飯 whois@ubuntu:~/test$ cd /home/ whois@ubuntu:/home$ eat 快去吃飯 whois@ubuntu:/home$