使用Shell脚本设置Path变量-使用Shell变量

Question

I have variable difine as SCRPT_PATH="/home/dasitha" I need to add this path to .bashrc file using shell scirpt.

What I tired was something like this.

echo 'export PATH=$PATH:$SCRPT_PATH")' >> /root/.bashrc

After opening my .bashrc file it looks like this

export PATH=$PATH:$SCRPT_PATH")

What I actually need is export PATH=$PATH:/home/dasitha. How should I do this by changing the shell script?

Answer 1

You've got the wrong quotes (in addition to a spurious looking parenthesis and quote mark). You're looking for something more like

echo "export PATH=$PATH:$SCRPT_PATH" >> /root/.bashrc

Here's a quick example that demonstrates quoting:

krismatth@earth ~$ echo $HOME
/Users/krismatth
krismatth@earth ~$ echo '$HOME'
$HOME
krismatth@earth ~$ echo "$HOME"
/Users/krismatth