The Command Line Crash Course——命令行的简单学习

       听说自学编程的人99%都会失败，看看我能不能成为那1%吧。写这个博客也是自我鼓励，如果有人会看的话，那就更好了。

       目前还暂时不准备接触Linux，于是就先在Windows下学习。
        简单总结一下这两天学习的所有命令：
学会的：

Commands	Meanings	Notes
pwd	print working directory
hostname	my computer's network name
mkdir	make directory
cd	change directory
ls	list directory
rmdir	remove directory
pushd	push directory	push into a directory temporarily
popd	pop directory	pop back to the former directory
cp	copy a file or directory
mv	move a file or directory
more	page through a file
dir -r	find files	-'r': Recurse     -filter dir -r -filter "*.txt"
select-string	find things inside files	select-string new *.txt new为所查单词，*.txt 为名称
help	read a manual page
helpctr	find what man page is appropriate
echo	print some arguments
set	export/set a new environment variable
exit new－item	exit the shell Making Empty Files	参数：-type file

暂时还没有尝试的：

robocopy	robust copy
type	print the whole file
forfiles	run a command on lots of files
runas	DANGER! become super user root DANGER!
attrib	change permission modifiers
iCACLS	change ownership

由于学习命令行是为了学习Python，所以也就不在这里多做停留了，继续吧

10.21补充：
Linux／Mac下的命令：
Making Empty Files (Touch, New-Item)
e.g.   touch iamcool.txt

View A File (less, MORE)
e.g.   less ex12.txt

Finding Files (find, DIR -R)
e.g.   find . -name "*.txt" -print
           find . -name "*.txt" -print | less

Looking Inside Files (grep, select-string)
e.g.   grep new *.txt

Getting Command Help (man, HELP)
e.g.   man find

Finding Help (apropos, HELP)
e.g.   apropos search

What's In Your Environment (env, echo, Env:)
e.g.   env
           env | grep zed
           env zed

Changing Environment Variables (export, Env:)
e.g.  
          $ export TESTING="bada bada bing"
          $ echo $TESTING
          bada bada bing
          $ unset TESTING
          $ echo $TESTING

          $ env | grep TESTING
          $