Unable to Switch User Error – su: no shell

We had some users complaining about not being able to switch or substitute user, su. Here is the error message they were receiving: “su: no shell.” At first I thought the users had inadvertently locked out their accounts. But after querying nisplus and checking the file-based users, I didn’t observe any locked accounts. I tried

Strip a Prepended String From a Filename – Unix

I had a process that was pre-pending by design its PID to a file name string. But unfortunately, it caused a few unexpected problems when this handling process inadvertently terminated. I had to rename the files without the defunct pre-pended PID string and then reprocess them (several thousand). Here is what I used as a

ADSL Configuration in ubuntu

ADSL Broadband Internet connection configuration open a terminalsudo apt-get install pppoesudo apt-get install pppoeconf after installationsudo pppoeconf if you are not an expert select default and enter username and password when asking after configuration$ pon dsl-provider ————————————————————————— The GNU/Linux Advanced Administration: In this ebook “The GNU/Linux Operating System”, the main contents are related with system