set variable in linux command line
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Tài liệu Beginning the Linux Command Line [Apress 2009] ppt
Ngày tải lên :
10/12/2013, 14:15
... CHAPTER 1
Starting Linux Command- Line
Administration
T
o unleash the full power of Linux, as a Linux administrator you will spend most of your time
typing commands on the Linux command line, the ... xv
Introduction
xvii
CHAPTER 1
Starting Linux Command- Line Administration
1
Linux Distributions
1
Linux History
1
Open Source
2
The First Distributions
2
Linux Turning Mainstream
2
Logging ... had in mind system administrators, software developers, and enthusiastic users who want to
get things going from the Linux command line. For beginning users, this may be a daunting
task, as Linux...
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Báo cáo y học: "High level expression of apoptosis inhibitor in hepatoma cell line expressing Hepatitis
Ngày tải lên :
02/11/2012, 11:17
... persistently HBV expressing cell line HepG2.215 and its parent cell line, a non-HBV
expressing cell line HepG2. We found that cIAP1 and cIAP2 were clearly increased in the HBV expressing cells but XIAP ... how these proteins contribute to the
carcinogenesis is still in the investigation. The involvement of these proteins in the NF-kB related signal transduction pathway that
results in the cell apoptosis ... and procaspase-7 by binding and blocking the activity of caspase-9. Increasing evidence demonstrated that IAPs are
up regulated in many human tumor types and tumor cell lines [ 18, 32, 29, 39,...
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Accepting Command-Line Options, Switches, and Parameters
Ngày tải lên :
05/10/2013, 08:51
... a bit more elegant because it is con-
tained within a single line of code instead of being spread out over four. The same test is
performed against the variable, but the && (logical AND) ... related to setting default variables, at least conceptually. In
the previous examples, I set default values by testing a particular variable to see if it had
been defined, and then assigning it ... "${username:?$LOGNAME}"
Changing the argument that follows the question mark to some type of error string will
make this statement very useful in debugging and finding undefined variables in your
code. The...
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Command-Line E-mail Attachments
Ngày tải lên :
05/10/2013, 08:51
... it, I copied the headers
into the test message. I have preserved the line spacing of the copied message.
Notice the line in the preceding code that defines a boundary string ( mime-
attachment-boundary). ... obtain the original binary file.
First we define a variable specifying the temporary file that will contain the encoded
message as well as a variable that holds the script-usage string.
#!/bin/sh
tmpfile=/tmp/uu_output.$$
usage="Usage: ... {email_address}"
Now we validate the input by determining whether the positional parameter holding
the binary file is defined.
if [ ! -z $1 ]
then
file=$1
CHAPTER 23
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COMMAND- LINE E-MAIL ATTACHMENTS
155
■
Tip
If...
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Command-Line Editing and History
Ngày tải lên :
05/10/2013, 08:51
... CHAPTER 15
■
COMMAND- LINE EDITING AND HISTORY
101
ksh
In ksh configuring vi editing mode can once again be set either systemwide or for an indi-
vidual user. Modifying the systemwide /etc/profile ...
immensely when working at the command line. If you’re not comfortable with the vi edi-
tor, I recommend practicing; vi is the default text editor on UNIX /Linux systems, and
you’ll certainly have to ... that is usually kept in the user’s home
directory. Adding the following line to one of those two files will enable vi mode:
set editing-mode vi
Another way to enable vi mode in bash is to modify...
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Scripting from the Command Line
Ngày tải lên :
05/10/2013, 08:51
... 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 ... entered miniscript for easy modification and reuse.
1. To read a file line- by -line where the lines contain more than a single “word,” refer to Chapter 10.
104
CHAPTER 16
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SCRIPTING FROM THE COMMAND ... you’re
working with many lines at once), you can return to the previous (mistyped) command in
your history and then edit the command sequence using vi-style command- line editing.
You can also recall...
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The IDE - Eclipsing the Command Line
Ngày tải lên :
05/10/2013, 10:20
... the installation process by selecting Help
➤ Software Updates ➤ Find and Install.
This br
ings up the Install/Update window, shown in Figure 2-4.
CHAPTER 2
■
THE IDE: ECLIPSING THE COMMAND LINE ... you’ll learn how to use it both from the
command line and from within Eclipse using the Subversive plug -in.
CHAPTER 2
■
THE IDE: ECLIPSING THE COMMAND LINE4 0
9810ch02.qxd 5/15/08 11:04 AM Page ... point in the program that the node in the explorer represents. The Outline view to the right
shows the elements corresponding to the currently active editor. Clicking any element in the
Outline...
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FreeBSD and Command Line Tools
Ngày tải lên :
19/10/2013, 01:20
... 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 machine from ... resources in the computer
including memory, video, networking, and hard disks.
Some popular operating systems today include
Microsoft Windows, Apple OS X, Linux, and
FreeBSD.
As an operating system, ... done using the graid5 insert command.
freenas:~# graid5 insert myraid5 da0
The array will now start rebuilding. You can check that
it is rebuilding by using the graid5 status command
again:
Access:...
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SecurePlatform Pro & Advanced Routing Command Line Interface
Ngày tải lên :
19/10/2013, 12:15
... Features 234
Command Tokens 234
Command Line Completion 234
Moving About the Command Line 236
Context-Sensitive Help 236
History 237
Disabling/Enabling CLI Tracing 237
Aborting an Executing Command ... running-config 249
show version 251
terminal history 251
terminal history size 252
terminal length 253
write memory 254
Querying the Advanced Routing Suite CLI 255
Memory Information 255
Task Information ... 240
CLI Behavior Commands 241
configure file 241
configure terminal 242
disable 242
enable 243
end 243
exit 244
ip router-id 244
ip routingtable-id 245
logout 246
quit 246
show debugging 247
show...
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Writing device drivers in Linux: A brief tutorial
Ngày tải lên :
23/10/2013, 22:15
... fclose(PARLELPORT);
}
Writing device drivers in Linux: A brief tutorial
Final application: flashing lights 18
#include < ;linux/ init.h>
#include < ;linux/ config.h>
#include < ;linux/ module.h>
#include ... < ;linux/ kernel.h> /* printk() */
#include < ;linux/ slab.h> /* kmalloc() */
#include < ;linux/ fs.h> /* everything */
#include < ;linux/ errno.h> /* error codes */
#include < ;linux/ types.h> ... io.h.
<parlelport initial> =
/* Necessary includes for drivers */
#include < ;linux/ init.h>
#include < ;linux/ config.h>
#include < ;linux/ module.h>
#include < ;linux/ kernel.h> /* printk()...
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Open Outlook Items from the Command Line
Ngày tải lên :
24/10/2013, 06:15
... Documents\report.doc"
The command- line examples might be printed on two or more lines,
but when typing them in, use one line and leave a space before the
slash (/), as seen in the shorter examples. ... appropriate switch.
ã
/Embedding Embeds the specified message file (.msg) as an OLE (Object
Linking and Embedding) object in a new message. Also used without command-
line parameters for standard ... an email address or any resolvable name or distribution list in your
address book. Use it with the /c command- line parameter as in this example:
ã
Outlook.exe /c IPM.note /m diane@poremsky.com...
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B Command-Line Utilities
Ngày tải lên :
04/11/2013, 16:15
... the command- line switches
that are available.
Command- Line Syntax
In Table B-5, you can see all the command- line switches understood by the
Visual Basic .NET compiler. To get an instant listing ... output using UTF-8 encoding.
/warn Set warning level.
/warnaserror Promote warnings to errors.
/win32icon Insert an .ico file into the output file.
/win32res Insert a Win32 resource into the ... .NET
Framework. This appendix will introduce these tools and will also detail the command- line
usages of vbc.exe.
Command Utilities
In order to be able to run these command- line utilities, you must configure...
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