v-z

• vi - screen oriented (visual) display editor
• visudo - edit the sudoers file
• wait - await process completion
• wc - word, line and byte or character count
• whence - query command type
• who - display who is on the system
• write - write to another user
• xargs - construct argument list(s) and execute command
• yacc - yet another compiler-compiler
• zcat - expand and concatenate compressed data
• zip - package and compress (archive) files
• zipcloak - encrypt entries in a zipfile
• zipgrep - search files in a ZIP archive for lines matching a pattern
• zipinfo - list detailed information about a ZIP archive
• zipnote - write the comments in zipfile to stdout, edit comments and rename files in zipfile
• zipsplit - split a zipfile into smaller zipfiles
• : - return true value
• . - execute commands in current environment
• [ ] - evaluate expression