为什么我不能在bash脚本中添加带有“ echo >>”的行？

Question

I have got the code:

#!/bin/bash

myParam='/linuxcoe'
myConfigFile='/etc/exports'

if grep -q myParam myConfigFile
  then echo "myParam string exist!"
else
 echo "Did not find string, adding"
 echo "/linuxcoe *" >> myConfigFile
fi

But it don't work from bash script, in config we don't have new lines. echo "/linuxcoe *" >> /etc/exports from console with root works good, but don't work from script, started by root. Why? How to solve it? How to add strings to config file?

Answer 1

You mean echo "/linuxcoe *" >> "$myConfigFile" . Your existing script is creating a file named myCOnfigFile .