交互式输入

 

[root@localhost ~]# ntpq

ntpq> peers

     remote           refid      st t when poll reach   delay   offset  jitter

==============================================================================

+gus.buptnet.edu 202.112.10.60    3 u   17   64  377   88.144   32.547   5.601

+ntp.verd.co.id  202.162.32.12    3 u   85   64  336  209.770    4.300 167.134

*ktdns.cdnetwork 131.107.13.100   2 u   10   64  377   70.834   33.196  20.738

ntpq> ?

ntpq commands:

:config          delay            mreadvar         readlist

addvars          exit             mrl              readvar

associations     help             mrv              rl

authenticate     host             ntpversion       rmvars

ntpq> q

[root@localhost ~]#



[root@localhost ~]# sqlite3

SQLite version 3.6.20

Enter ".help" for instructions

Enter SQL statements terminated with a ";"

sqlite> .help

.backup ?DB? FILE      Backup DB (default "main") to FILE

.bail ON|OFF           Stop after hitting an error.  Default OFF

.databases             List names and files of attached databases

.dump ?TABLE? ...      Dump the database in an SQL text format

sqlite> .quit

[root@localhost ~]#



[root@84-monitor ~]# mysql -p

Enter password:

Welcome to the MySQL monitor.  Commands end with ; or \g.

Your MySQL connection id is 1119677

Server version: 5.1.73 Source distribution

mysql> ?

mysql> quit

Bye

[root@84-monitor ~]#



-bash-3.2$ sqlplus / as sysdba



SQL*Plus: Release 11.2.0.1.0 Production on Thu Feb 26 15:17:18 2015



Copyright (c) 1982, 2009, Oracle.  All rights reserved.





Connected to:

Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production

With the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP,

Data Mining and Real Application Testing options



SQL> ?



 HELP

 ----



 Accesses this command line help system. Enter HELP INDEX or ? INDEX

 for a list of topics.



 You can view SQL*Plus resources at

     http://www.oracle.com/technology/tech/sql_plus/

 and the Oracle Database Library at

     http://www.oracle.com/technology/documentation/



 HELP|? [topic]





SQL> quit

Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production

With the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP,

Data Mining and Real Application Testing options

-bash-3.2$



[root@84-monitor ~]# php -a

Interactive shell



php >

php > b    tab两次

BadFunctionCallException  BadMethodCallException    base64_decode             base64_encode             base_convert              basename

bin2hex                   bind_textdomain_codeset   bindec                    bindtextdomain            bzclose                   bzcompress

bzdecompress              bzerrno                   bzerror                   bzerrstr                  bzflush                   bzread

bzwrite                   bzopen

php > b

php > quit

[root@84-monitor ~]#



[root@84-monitor ~]# python

Python 2.6.6 (r266:84292, Jan 22 2014, 09:42:36)

[GCC 4.4.7 20120313 (Red Hat 4.4.7-4)] on linux2

Type "help", "copyright", "credits" or "license" for more information.

>>> help

Type help() for interactive help, or help(object) for help about object.

>>> help()



Welcome to Python 2.6!  This is the online help utility.



If this is your first time using Python, you should definitely check out

the tutorial on the Internet at http://docs.python.org/tutorial/.



Enter the name of any module, keyword, or topic to get help on writing

Python programs and using Python modules.  To quit this help utility and

return to the interpreter, just type "quit".



To get a list of available modules, keywords, or topics, type "modules",

"keywords", or "topics".  Each module also comes with a one-line summary

of what it does; to list the modules whose summaries contain a given word

such as "spam", type "modules spam".



help> q



You are now leaving help and returning to the Python interpreter.

If you want to ask for help on a particular object directly from the

interpreter, you can type "help(object)".  Executing "help('string')"

has the same effect as typing a particular string at the help> prompt.

>>> exit()

[root@84-monitor ~]#