Operation and MaintenanceLinux Operation and Maintenance10 Linux command aliases that can improve productivity
The following column linux tutorial will introduce you to 10 Linux command aliases that can improve efficiency. I hope it will be helpful to friends in need!
Engineers working in a Linux environment will definitely be impressed by the cumbersome instructions and parameter command lines. Moreover, the terrible thing is not that it is cumbersome, but that it requires a large number of repeated input of these cumbersome commands.
Under Linux we have the alias command alias, which can customize those cumbersome commands into aliases that are easy for us to remember, which can greatly improve our efficiency.
However, the alias command is only valid for the current terminal. When the terminal is closed, all the aliases we set will become invalid. So if we want these aliases to be permanent, we need to add them to the .bash_profile file.
In this article, Liang Xu will introduce 10 very practical command aliases that can improve your work efficiency.
1. Compressed package files, especially tar files, are widely used in Linux, but the tar command has many options and is difficult to remember. Therefore, we can define several commonly used options as an alias untar, so that when we need to decompress a tar file, we can directly untar filename.
alias untar='tar -zxvf '
2. When we were downloading a large file, the network was suddenly interrupted abnormally. Wouldn’t it be crazy to download it again? Don't worry, our wget command has a -c option, which supports breakpoint downloads. We can also set it as an alias:
alias wget='wget -c '
3. Sometimes we need to generate a 20-character random number password. You can use the openssl command, but the complete command is very long and inconvenient. We can set an alias:
alias getpass="openssl rand -base64 20"
4. After downloading a file, we want to verify its checksum value. We can use this command Encapsulate it as an alias sha, and then we sha filename can verify the checksum value of the file.
alias sha='shasum -a 256 '
5. Under normal circumstances, the ping command will be output infinitely, but it actually doesn’t make much sense. We can use the -c command to limit it to 5 outputs, and then set it as an alias ping. When using it, just ping url.
alias ping='ping -c 5'
6. If we want to start a web server anytime and anywhere, we can use this alias:
alias www='python -m SimpleHTTPServer 8000'
7. Network speed testing is also often used at work, but Linux does not automatically With commands available, we can use the third-party tool speedtest-cli. This tool can be downloaded directly from Github, and its usage is also described in detail. We need to first use the speedtest-cli command to select the server closest to us, and then set the following alias:
alias speed='speedtest-cli --server 2406 --simple'
8. What is your public IP? If you have a good memory, you can memorize it directly, but what if you have 10 or hundreds of servers? You can also memorize it and then participate in the strongest brain. In fact, there is a command that can be directly queried, but that command is too weird and difficult to remember, so I decisively set it as an alias.
alias ipe='curl ipinfo.io/ip'
9. How to know your LAN IP? This command is also perverted and decisively sets an alias.
alias ipi='ipconfig getifaddr en0'
10. Finally, to clear the screen, we can use the ctrl l shortcut key, or we can define the clear command to be shorter, so that it is more direct and rough to use.
alias c='clear'
You may not necessarily use all of these 10 commands, because everyone uses Linux in different directions and has different work content. In your work field, there must be a large number of complex and cumbersome commands that can be defined as aliases. Welcome to add them in the message area!
The above is the detailed content of 10 Linux command aliases that can improve productivity. For more information, please follow other related articles on the PHP Chinese website!
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