private void DisplayHelp()
{
OutputWriter.DisplayHelpMessage($"{new string('-', 110)}");
OutputWriter.DisplayHelpMessage(string.Format("|{0, -108}|",
" open file - open {path}"));
OutputWriter.DisplayHelpMessage(string.Format("|{0, -108}|",
" make directory - mkdir {path}"));
OutputWriter.DisplayHelpMessage(string.Format("|{0, -108}|",
" traverse directory - ls {depth}"));
OutputWriter.DisplayHelpMessage(string.Format("|{0, -108}|",
" comparing files - cmp {path1} {path2}"));
OutputWriter.DisplayHelpMessage(string.Format("|{0, -108}|",
" change directory relative - cdrel {relative path}"));
OutputWriter.DisplayHelpMessage(string.Format("|{0, -108}|",
" change directory absolute - cdabs {absolute path}"));
OutputWriter.DisplayHelpMessage(string.Format("|{0, -108}|",
" read students data base - readdb {path}"));
OutputWriter.DisplayHelpMessage(string.Format("|{0, -108}|",
"show all students in current course - show {courseName}"));
OutputWriter.DisplayHelpMessage(string.Format("|{0, -108}|",
" display data entities - display {students/courses} {ascending/descending}"));
OutputWriter.DisplayHelpMessage(string.Format("|{0, -108}|",
" filter students by course - filter {courseName} {excelent/average/poor} {take} {2/5/all}"));
OutputWriter.DisplayHelpMessage(string.Format("|{0, -108}|",
" order students in course - order {courseName} {ascending/descending} {take} {20/10/all}"));
OutputWriter.DisplayHelpMessage(
string.Format("|{0, -108}|", " drop database - dropdb"));
OutputWriter.DisplayHelpMessage(string.Format("|{0, -108}|", " get help - help"));
OutputWriter.DisplayHelpMessage($"{new string('-', 110)}");
OutputWriter.WriteEmptyLine();
}
