Top Shell Scripting Interview Questions & Answers

What is a shell? Shell is an interface between the user and the kernel. Even though there can be only one kernel; a system can have many shell running simultaneously. So, whenever a user enters a command through the keyboard, the shell communicates with the kernel to execute it and then display the output to the user.     阅读全文
Junyangz's avatar
Junyangz 1月 02, 2019