如何使用bash脚本替换用户输入文件路径

Question

I am trying to replace the filepath in the file based on the user input. I am not seeing any replacement happening in my file.

My file

   paths:              
      - /var/log/*.log

My bash script

echo 'Enter the log directory path'
read log_path
sed -i -e 's/    - \/var\/log\/*.log/    - $log_path/g' /envs/cfc/fmn.txt

I am not sure where I am doing wrong.

Answer 1

Well, first of all, you are trying to get variable expansion inside single quotes, which is impossible. It should be like this:

#!/bin/bash

read -p 'Enter the log directory path: ' log_path
sed -i -e "s#/var/log/\*.log#$log_path#g" ./file.txt