问题描述
我对Hadoop比较陌生，并且我经常使用HDFS CLI。 hdfs dfs -ls 之类的命令变得多余。是否可以在 .bashrc 或 h -ls ） code> .bash_profile 文件？我还能在这里映射其他有用的命令吗？
I am relatively new to Hadoop and I have been using HDFS CLI a lot. Commands like hdfs dfs -ls are becoming redundant to type. Is it possible to create an alias to this command (i.e., h -ls) in either the .bashrc or .bash_profile files? Are there any other useful commands that I can map here?
推荐答案
好的做法是将别名放在 .bash_aliases 。
The good practice is to put aliases in .bash_aliases.
对于您的问题，我会输入 alias h = hdfs dfs .bash_aliases 文件中的c $ c>（如果不存在则创建它）
For your problem, I'd put alias h="hdfs dfs" in my .bash_aliases file (create it if it doesn't exist)
大多数分配在它们的 .bashrc 文件中已经有此文件，但如果不存在，请添加
Most distribs will already have this in their .bashrc file but if it's not there, add
if [ -f ~/.bash_aliases ]; then
. ~/.bash_aliases
fi
在您的 .bashrc中
现在，您可以输入 source .bashrc 或重新启动终端并 h -ls 将被解释为 hdfs dfs -ls
Now you can either type source .bashrc or restart you terminal and h -ls wille be interpreted as hdfs dfs -ls
cou还可以很好地将所有别名直接放在 .bashrc 中，但是我发现将所有别名设置为appart更为方便。
Note that cou can also very well put all of your aliases directly in the .bashrc, but I find it more convenient to have all the aliases set appart.
看看这个，它可能会给您一些想法：
Look at this, it might give you some ideas : https://www.cyberciti.biz/tips/bash-aliases-mac-centos-linux-unix.html
您可以添加所需的内容因此，如果您真的经常运行命令，可以考虑将其添加到别名中。
And you can add what you want so if you run a command really often you can consider adding it in your aliases.
希望这会有所帮助！
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