Since the 10 command aliases know me very happy, because if I had known, I would not be titanium keyboard poke bad!
Alias is what?
Alias is a nickname, or call shorthand, such as if you African brothers "exaggerated boast a long cucumber scrape it does not boast palm Cameroon fried fried rotten," shouted the name of children is too long not agile, you can give him alias "non-Arab" or " Akwa ', the next time a child African brothers know you called him!
Odd kinky tricks
Most people define aliases are defined as:
alias n='echo HelloWorld'
Today I teach you a more defined method 6, to ensure that the level of 6, 6 Style:
alias n='f(){ echo $1; }; f'
This corresponds to the definition of a function f, and call it the end, see "$ 1" yet? Alias defined in this way can pass parameters! Old iron that show, ah bah, not 6 6?
List all files
ll command must have the highest frequency of use of Linux, the default is actually ll command ls -l --color = auto alias, the system default, there's no need to define your own, but it is not easy to use, we recommend a custom reason : convenience, ll and la is the use of relatively high frequency recommendation: Five star
alias ll='ls -lht' #按修改时间逆序列出文件
alias la='ls -lhta' #按修改时间逆序列出所有文件
# 调用示例
ll /usr # ls本身后面就可以跟路径参数
Check the file / directory size
Disk space is full when you want to find large files this command is simply an artifact! Recommended reason: to view files quickly occupied size, easy to modify the path, the current default directory Recommendation: Five Star
alias size='f(){ du -sh $1* | sort -hr; }; f'
# 调用示例
size #当前目录
size / #根目录
Demo:
Find Files
Recommended reason: Sometimes a file transfer to Linux, but do not know where documents are going to run this command is especially useful! Recommendation: Five Star
alias sek='f(){ find / -name $1; }; f' # 在根目录查找文件
# 调用示例
sek myfile
Brothers alias, find the file in the current directory
alias sekc='f(){ find ./ -name $1; }; f'
# 调用示例
sekc myfile
Open port
When you want to open a port and do not want to check tedious iptables command, alias is very useful Recommended reason: fast open ports, do not inquire complicated iptables command, you must pass the port number Recommendation: Five Star
alias portopen='f(){ /sbin/iptables -I INPUT -p tcp --dport $1 -j ACCEPT; }; f'
# 调用示例
portopen 8080
Brothers aliases, quick closing ports
alias portclose='f(){ /sbin/iptables -I INPUT -p tcp --dport $1 -j DROP; }; f'
# 调用示例
portclose 8080
Temporary open HTTP service
Recommended reason: this is simply an artifact when you need to download files in a directory or html quick access when you need it! If you can not access needed to see whether the port is open! Recommendation: Five Star
alias www='f(){ python -m SimpleHTTPServer $1; }; f'
# 调用示例：
www #不传端口，默认8000
www 8080 #8080端口开启HTTP服务
Demo:
Check boot entry
Recommended reason: nothing to say, this order is too long, it gave him a name it is called auto Recommendation: Five Star
alias auto='systemctl list-unit-files --type=service | grep enabled | more'
# 调用示例
auto
# 回显如下
[email protected] enabled
chronyd.service enabled
crond.service enabled
[email protected] enabled
iptables.service enabled
--More--
View the current time
Recommended reason: By default all know that time is a date to view the Linux command, which returns the time format looked like to beat: Sat Dec 22 03:57:08 UTC 2018, nothing to say, named after formatting now Recommended for children : Five star
alias now='date "+%Y-%m-%d %H:%M:%S"'
# 调用示例
now
# 回显如下
2018-12-22 03:59:33
View Docker mirroring details
推荐理由：有时候想看哪个docker镜像流量用的最多，docker stats命令一个一个去对比真是很蛋疼，所以有了它，你也可以按照另外的字段排序，修改-k8中的8为另外的数字，这个数字表示按照哪个字段排序 推荐指数：五星
alias dkrnet='docker stats --no-stream | sort -k8 -hr | more'
# 调用示例
dkrnet
# 回显如下
f27760776941 ccc1 0.04% 49MiB / 985.3MiB 4.97% 41.2GB / 47.5GB 156GB / 14MB 14
783353fc3522 ccc2 0.00% 5.941MiB / 985.3MiB 0.60% 14.4GB / 14.7GB 7.37GB / 0B 1
e35fcbb46b7e ccc3 0.00% 4.676MiB / 985.3MiB 0.47% 1.63GB / 1.6GB 3.04GB / 0B 1
--More--
解压
推荐理由：用过zip命令的都知道它有一个兄弟叫unzip，可是tar和jar没有，每次解压都不知道后面参数该怎么跟，所以给它取名儿untar或者unjar 推荐指数：四星
alias untar='tar xvf '
alias unjar='jar xvf '
# 调用示例
untar a.tar.gz
unjar java.jar
查看外网IP
推荐理由：想查看自己的外网IP？没问题！ 推荐指数：五星
alias ipe='curl ipinfo.io/ip'
写在最后
别名的正确使用方式是将别名写入~/.bashrc文件里面，保证下次登录还能使用，我将上面的别名来了一个汇总，老铁按需自取！
vi ~/.bashrc
# 将以下别名写出文件并退出
alias ll='ls -lht' #按修改时间逆序列出文件
alias la='ls -lhta' #按修改时间逆序列出所有文件
alias size='f(){ du -sh $1* | sort -hr; }; f'
alias sek='f(){ find / -name $1; }; f' # 在根目录查找文件
alias sekc='f(){ find ./ -name $1; }; f'
alias portopen='f(){ /sbin/iptables -I INPUT -p tcp --dport $1 -j ACCEPT; }; f'
alias portclose='f(){ /sbin/iptables -I INPUT -p tcp --dport $1 -j DROP; }; f'
alias www='f(){ python -m SimpleHTTPServer $1; }; f'
alias auto='systemctl list-unit-files --type=service | grep enabled | more'
alias now='date "+%Y-%m-%d %H:%M:%S"'
alias dkrnet='docker stats --no-stream | sort -k8 -hr | more'
alias untar='tar xvf '
alias unjar='jar xvf '
alias ipe='curl ipinfo.io/ip'
# 最后别忘了执行以下命令使别名生效
source ~/.bashrc