使用echo命令将别名写入bashrc文件

Question

Is it possible to write an "alias to .bashrc" file using echo command in Terminal to make the alias permanent?.

ie echo "alias $NAME='$DEFINTION'" >> ~/.bashrc

Answer 1

yes it is. only bash'es launched after writing the file will be affected. to have the alias defined in your current bash session, you need to run alias $NAME='$DEFINTION' in that session before/after adding it to the bashrc.

Answer 2

Yes but you should also make sure that your login shell would also load it as login shells don't read .bashrc . Only interactive shells that are summoned without the -l option reads it.

A way to do this is to have this line in your .bash_profile :

[[ -f ~/.bashrc ]] && . ~/.bashrc