ArgumentsCheck check arguments count correctness.

check connect string, format is [user@]host[:port].

clear screen.

compress string by regexp trim space or tab.

错误断言.

Execute executes shell commands with arguments.

GetKernelVersion returns the kernel version info.

GetNodeIP fetches node ip via command hostname.

GetOSName gets data in /etc/os-release and gets OS name.

GetUsername return current username.

IsEmpty check directory is or is not empty.

IsNumeric is_numeric() Numeric strings consist of optional sign, any number of digits, optional decimal part and optional exponential part.

New Session.

New Session and auto switch root user.

New Session and auto switch root user(support custom switch cmd delay).

ParseAbsPath return relative file path if filepath is absolute.

ParseConnect parse connect string, format is [user@]host[:port].

ParseOriginalFilePath return the original file path if file is a symbol link.

ParseRelPath return absolute file path if filepath is relative.

PathExist check file is or is not exist.

Query values contains keys.

SortKeys sort map keys.

CheckSymbol is the code for check symbol.

CrossSymbol is the code for check symbol.

Message type.

ErrAbort is the error returned when confirm prompts are supplied "n".

ErrEOF is the error returned from prompts when EOF is encountered.

ErrInterrupt is the error returned from prompts when an interrupt (ctrl-c) is encountered.

VersionInfo holds information about the kernel.