Linux RPM安装软件包脚本无法更改所需文件的所有权

Question

Testing usage of RPM install package shell script.

Have included linux commands within the shell script to create a new user and change ownership of /etc/hosts to that user. Shell script content:

useradd bob
chown bob /etc/hosts

Post RPM install this should result in:

-rw-r--r--. 1 bob root 331 Jan  4 11:13 /etc/hosts

Instead after RPM install completion it remains:

-rw-r--r--. 1 root root 331 Jan  4 11:13 /etc/hosts

Answer 1

/etc/hosts is owned by root so chances are the script doesn't have privileges to alter that file.

I'm not sure how you are executing the script, however if it's just a standard shell script you could try sudo :

sudo ./my_script.sh

Answer 2

(Caveat: changing ownership of system-level files like this is a security issue and not the smartest idea.)

Are you sure the script is run? You may want to make the first line:

useradd bob || /bin/true

or just

useradd bob || :

so that it always returns true. Otherwise rpm will abort the script if, for example, the user "bob" already exists.