argparse—command line option and argument parsing

... additional option, available in both shells, that increases your efficiency at the command line is command and file completion With this feature, you can start to type a path or command, and once ... 100 CHAPTER 15 ■ COMMAND -LINE EDITING AND HISTORY When you enter command mode you start at the bottom of your history and press the K key to move back up through the ... the prompt for a long time, and my fingers are accustomed to moving to the correct keys This has improved my speed and agility immensely when working at the command line If you’re not comfortable...

Ngày tải lên: 05/10/2013, 08:51

... starts this line is a valid shell command that performs no active task In this syntax it simply expands any arguments that may follow it on the line In this case we simply want to expand the value ... set -x ;; CHAPTER ■ ACCEPTING COMMAND -LINE OPTIONS, SWITCHES, AND PARAMETERS x) set +x ;; h) echo -e $Usage ;; *) echo -e $Usage ;; esac done } The getopts command is invoked with a list of the ... the old and new machine names, the machine’s IP address, and perhaps the machine’s domain or subnet mask While you may want the subnet mask and domain name to be set from the command line, these...

Ngày tải lên: 05/10/2013, 08:51

... flags) r, w, and x meaning user readable, user writable, and user r, w, and x meaning group readable, group writable and group r, w, and x meaning world readable, world writable, and world executable ... List and Status Commands Although each of the utilities for managing RAID levels is different, they have some common commands Every utility accepts the list and status commands The status command ... and arp from the Command Line In chapter 9, we looked at the ping and arp commands These are available from the web interface but they are also available from the command line To ping another...

Ngày tải lên: 19/10/2013, 01:20

... book is a fairly comprehensive resource on the Linux command line and shell commands By the time you have completed Linux Command Line and Shell Scripting Bible you will be well prepared to write ... wealth of commands you can use from the command line, and this book shows you how to use them How This Book Is Organized This book leads you through the basics of the Linux command line and into more ... command line and shells, it's a good idea to first understand what Linux is, where it came from, and how it works This chapter walks you through what Linux is, and explains where the shell and...

Ngày tải lên: 29/03/2014, 19:20

... command line provides to keep your system safe and functioning fully CHAPTER USING THE COMMAND LINE EFFECTIVELY The Command Line Made Easy Some people are of the opinion that the command line ... worked exclusively at the command line for many years The days of DOS are gone and the command line is seemingly gone with it—or is it? The command line still exists and you can use it to make your ... at the command line can help you automate tasks and work considerably faster A good understanding of the command line can even help you work with fewer errors because most command line applications...

Ngày tải lên: 26/10/2014, 21:49

... an argument? Argument and non -argument Introduction Argument and disagreement Activity: Argument and disagreement Non-arguments: Description Non-arguments: Explanations and summaries Activity: ... structure of an argument is beneficial both in making reading faster and more effective, and in structuring your own arguments Chapters and develop skills in analysing the details of an argument These ... reasons, or contributing arguments, structured to support the overall argument Arguments - contributing arguments Individual reasons are referred to as arguments or 'contributing arguments' Assertions...

Ngày tải lên: 09/08/2013, 14:07

... COMMAND -LINE E-MAIL ATTACHMENTS been encoded, we send the tmpfile to the destination e-mail address with the mail command; the tmpfile is then removed ■Tip If the uuencode and uudecode commands ... created with the echo command containing a summary of what is attached for the reader of the message A blank line is added using the echo command between the text of the e-mail and the text of the ... file The file is encoded with the uuencode utility and appended to the tmpfile following the text of the message The uuencode and uudecode commands were originally designed for this very purpose,...

Ngày tải lên: 05/10/2013, 08:51

... command in your history and then edit the command sequence using vi-style command -line editing You can also recall a previously entered miniscript for easy modification and reuse To read a file line- by -line ... by using a command call within back-ticks (` `) A command string enclosed within back-ticks denotes not the given string, but the string obtained by evaluating the command string and replacing ... space-delimited or that appear individually on each line of the file, or a combination of both This loop does not iterate through the file line- by -line. 1The for loop iterates through each of the...

Ngày tải lên: 05/10/2013, 08:51

... The -f option 231 The -e option 231 The -a option 232 The -s option 233 Basic Features 234 Command Tokens 234 Command Line Completion ... Backup and Restore 157 SecurePlatform Shell 158 Command Shell 158 Management Commands 160 Documentation Commands 161 Date and Time Commands ... 161 System Commands 164 Snapshot Image Management 172 System Diagnostic Commands 174 Check Point Commands 177 Network Diagnostics Commands 190...

Ngày tải lên: 19/10/2013, 12:15

... and filename with the appropriate switch • • • /Embedding— Embeds the specified message file (.msg) as an OLE (Object Linking and Embedding) object in a new message Also used without commandline ... many cases, the following group of commands is more appropriate to use to programmatically use a feature, rather than for regular use The format of the command line needed for these switches is similar ... Chapter 20, "Creating Custom Forms," to learn how to create and publish custom forms You can combine the /a and /c switches to open a form and add an attachment: "C:\Program Files\Microsoft Office\Office11\Outlook.exe...

Ngày tải lên: 24/10/2013, 06:15

... family of command -line options that control the behavior of the compiler The next section will give you an overview of most of the command -line switches that are available Command -Line Syntax In ... create, deploy, and manage applications and components that target the NET Framework This appendix will introduce these tools and will also detail the command -line usages of vbc.exe Command Utilities ... Services and Server Components Development with Visual Basic NET / Lind / 222653-6 / Appendix B Command -Line Utilities Examples The Visual Basic NET compiler commands can be typed in at the command-line...

Ngày tải lên: 04/11/2013, 16:15

... their behavior, and further, by one or more arguments, the items upon which the command acts So most commands look kind of like this: command -options arguments Most commands use options consisting ... – Copy Files And Directories Useful Options And Examples Here are some of the commonly used options (the short option and the equivalent long option) for cp: Table 5-4: cp Options Option Meaning ... Useful Options And Examples 35 mv – Move And Rename Files 36 Useful Options And Examples 36 rm – Remove Files And Directories .37 Useful Options And Examples...

Ngày tải lên: 20/11/2013, 21:24

... differences between command arguments and arguments for options, but ate the two argument types Piping and Redirection piping, you can send the result of a command to another command, and by using redirection, ... command itself, the command options, and its arguments For instance, the following example shows what a Linux command looks like: This example consists of three parts, , which is the command; and ... via a command -line administrator, you don’t really care which shell is used—both work in the same most important and most useful features Commands, Options, and Arguments A Linux command normally...

Ngày tải lên: 10/12/2013, 14:15

... Using the Command -Line Interface C Firewall Mode and Security Context Mode Command Modes and Prompts Syntax Formatting Abbreviating Commands Command -Line Editing Command Completion Command Help Filtering ... Filtering show Command Output Command Output Paging Adding Comments Text Configuration Files How Commands Correspond with Lines in the Text File Command-Specific Configuration Mode Commands Automatic ... 11 NAT and Same Security Level Interfaces 14 Order of NAT Commands Used to Match Real Addresses Mapped Address Guidelines 15 DNS and NAT 16 Configuring NAT Control 17 Using Dynamic NAT and PAT...

Ngày tải lên: 21/12/2013, 05:18

... command history feature a Use the command history to see and reuse the previously entered commands Press the up arrow or Ctrl-p to see the last entered command Press it again to go to the command ... available commands from the router response 2-3 CCNA 2: Routers and Routing Basics v 3.0 - Lab 2.2.9 Copyright  2003, Cisco Systems, Inc Step List the show commands a List all show commands by entering ... command history be viewed b What appeared at the router prompt when the up arrow was pressed? Step 10 Logoff and turn the router off 3-3 CCNA 2: Routers and...

Ngày tải lên: 18/01/2014, 04:20