1、常用缩写 习惯
cd == change dieectory ##更改当前工作目录
dd == disk dump ##磁盘转存
df == disk free ##磁盘自由
du == disk usage ##磁盘详情
pwd == print working directory ##打印当前工作目录
ps == processes status ##工程状态
ps == prompt strings ##提示字符串
su == substitute user ##切换用户
rc == run command ##运行命令
tcl == tool command language ##工具命令语言
cups == command unix printing system ##unix命令打印系统
apt == advanced packaging tool ##先进的包装工具
bg == background ##背景、隐藏位置
fg == foreground ##前景
ping == packet internet grouper ##网络检测
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如果首字母后为h，通常为改变的意思，需要保留
chsh == change shell
chmod == change mode ##更改模式
chown == change owner ##更改所有者
chgrp == change group ##变更群组
bash == bourne again shell ##
zsh == z shell ##
ksh == korn shell ##
ssh == secure shell ##安全命令
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递归缩写类
gnu == gnu is not unix ##
php == php hypertext preprocessor ##
RPM == RPM package manager
WINE == WINE is not an emulator ##
PNG == PNG is not GIF ##
nano == nano is another editor ##nano 是另一个 编辑器
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如果只有一个单词linux命令linux命令，通常取每个音节的首字母
cp == copy
ln == link ##连接
ls == list ##列表、目录
mv == move ##移动
rm ==remove ##移动
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对于目录通常使用前几个字母作为缩写
bin == binaries
dev == devices
etc == etcetera
lib == library
var == variable
proc == processes
sbin == superuser binaries
tmp == temporary
usr == unix shared resources ##unix 共享资源
###这种缩写的其他情况
diff == differences
cal == calender
cat == catenate
ed == editor
exec == execute
tab == table
regexp == regular expression
dmesg == diagnostic message ##错误报告
