Mac 命令行可用指令的组成

系统自带指令

ShuaideMacBook-Pro:~ shuai$ cd /bin
ShuaideMacBook-Pro:bin shuai$ ls
[       csh     echo        ksh     mkdir       rm      sync        zsh
bash        date        ed      launchctl   mv      rmdir       tcsh
cat     dd      expr        link        pax     sh      test
chmod       df      hostname    ln      ps      sleep       unlink
cp      domainname  kill        ls      pwd     stty        wait4path

本地添加指令

ShuaideMacBook-Pro:~ shuai$ cd /usr/bin/
ShuaideMacBook-Pro:bin shuai$ ls
2to3                findrule5.18            mdutil              security
2to3-               finger              memory_pressure         sed
2to3-2.7            fixproc             mesg                seeksize.d
……

用户添加的PATH下的指令

如添加的Anaconda的bin内目录下的ipython指令

ShuaideMacBook-Pro:~ shuai$ cat .bash_profile
# Setting PATH for MySQL
export PATH=${PATH}:/usr/local/mysql/bin

# added by Anaconda3 4.2.0 installer
export PATH="//anaconda/bin:$PATH"