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Missing several key combinations that need.
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Missing several key combinations that need.

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Why didn't you ask for those keys before giving grade B?
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Why didn't you ask for those keys before giving grade B?

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I can configure the unix terminal executing &quot;set -o vi&quot;.<br />
Could you explain me what commands and keys can I use in this enviroment? <br />
Thanks
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I can configure the unix terminal executing "set -o vi".
Could you explain me what commands and keys can I use in this enviroment? 
Thanks

VI commands and keys in a unix terminal

Unix is a multitasking, multi-user computer operating system originally developed in 1969 at Bell Labs. Today, it is a modern OS with many commercial flavors and licensees, including FreeBSD, Hewlett-Packard’s UX, IBM AIX and Apple Mac OS-X. Apart from its command-line interface, most UNIX variations support the standardized X Window System for GUIs, with the exception of the Mac OS, which uses a proprietary system.

Unix OS

Linux is a UNIX-like open source operating system with hundreds of distinct distributions, including: Fedora, openSUSE, Ubuntu, Debian, Slackware, Gentoo, CentOS, and Arch Linux. Linux is generally associated with web and database servers, but has become popular in many niche industries and applications.