introduction to unix shell scripting pdf

... Core 2 Unix Shells ã Some of the popular Unix Shells are: ã Bourne Shell: sh is the executable filename for this shell ã C Shell: csh is the executable filename for this shell ã Korn Shell: ... name ã SHLVL: Contains the shell level that you are currently working in ã SHELL: Stores the users default shell Shell as a Command Interpreter (Contd.) The shell creates a child shell for the execution ... is used to refer to the content of a variable variable1=${variable2} ã The braces are essentially used to delimit the variable name. ã The command to assign the value of today variable to x variable...

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Ngày tải lên: 24/10/2014, 10:53

... vary from system to system — see the man pages University Technology Services In the Introduction to UNIX document 3 ã shell programming ã Unix command summary tables ã short Unix bibliography ... Services Directory Navigation and Control Commands 20–22 pwd print working directory cd change working directory (“go to directory) mkdir make a directory rmdir remove directory University ... the user ã e.g. vt100, xterm or sun ã To reset: ã setenv TERM terminaltype (C -shell) ã may need to unsetenv TERMCAP ã TERM= terminaltype ; export TERM (Bourne shell) University Technology Services ...

Ngày tải lên: 07/11/2013, 10:15

... Distribution Protocol/Label Distribution Protocol (TDP/LDP) is used to set up the hop-by-hop VCs and to manage which class-based queue corresponds to which VC. WFQ is used to define the amount ... Layer 3 QoS protocol such as Resource Reservation Protocol (RSVP) to MAC layer in Ethernet 802.1P/Q LANs ã Router automatically a client, optionally can participate in bidding to be DSBM Benefit: ã ... important to the customer over higher speed links. Sometimes QoS is desired because IP networking is replacing ATM, and QoS is something valuable that ATM has to offer, and the customer wishes to...

Ngày tải lên: 11/12/2013, 14:15

... word University Technology Services Other Shells 45 Based on the Bourne Shell: ã Korn (ksh) ã Bourne-Again Shell (bash) ã Z Shell (zsh) Based on the C Shell: ã T-C shell (tcsh) University Technology ... Technology Services History 52–53 C Shell, Korn shell and others retain information about former commands executed within the shell ã Use history and savehist variables to set number of commands ... by comma (csh) ˜ user’s own home directory (csh) ˜ user home directory of specified user (csh) University Technology Services History shortcuts in csh 53 % history nn prints last nn commands % !! repeats...

Ngày tải lên: 14/12/2013, 14:15

... Gordon Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark. Undergraduate Topics in Computer Science Please purchase PDF Split-Merge on www.verypdf.com to remove this ... Initialize n to 1. 2. Read the next bit. If it is 0, stop. Otherwise read n more bits, assign the group of n + 1 bits to n, and repeat this step. Please purchase PDF Split-Merge on www.verypdf.com to remove ... assigns short codes to commonly-occurring letters (the code of E is a dot and the code of T is a dash) and long codes to rare letters and punctuation marks ( to Q, to Z,and to the comma). Processor...

Ngày tải lên: 14/12/2013, 15:15

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Ngày tải lên: 14/12/2013, 16:15

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Ngày tải lên: 14/12/2013, 16:15

... A user account provides the ability to log on to the domain to gain access to network resources, or to log on to an individual computer to gain access to resources on that computer. The process ... administrators with the capability to control access to resources. Module 1: Introduction to Windows 2000 Administration 15 Computers in a Domain Active Directory Active Directory Member ... users to gain access to network resources. ã Is scalable to very large networks. 7. What network information does Active Directory store? What services does Active Directory provide to...

Ngày tải lên: 21/12/2013, 05:17

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Ngày tải lên: 24/12/2013, 03:15

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Ngày tải lên: 24/12/2013, 03:16

... purchase PDF Split-Merge on www.verypdf.com to remove this watermark. Download free books at BookBooN.com Introduction to Electronic Engineering 45 Semiconductor Devices Darlington transistors. ... a cutoff region of the transistor where resistance is high, and the small collector current is called a collector cutoff current. As usual, a designer never allows voltage to get close to the ... Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark. Download free books at BookBooN.com Introduction to Electronic Engineering 56 Semiconductor Devices Structure....

Ngày tải lên: 26/01/2014, 09:20

... particular species to the total volume of the solution. [edit] Step 2: Convert Units Now, we need to turn to converting the concentrations into appropriate units. Since the total flowrates ... remains to be used elsewhere? c) Do you think the salt solution would be safe to drink? Why or why not? Problem: 2. a) In a stone quarry, limestone is to be crushed and poured into molds ... don't need to apply a density: Now that everything is in the same system of units, we can proceed to the next step. To convert the numerators, we need to convert moles of A to mass of...

Ngày tải lên: 16/02/2014, 19:20

... top-down from bottom-up approaches to problem solving? Illustrate your answer with reference to the problem of a car, motor-cycle or bicycle having a fl at tire. 26 3 Introduction to Programming ... possible to get a machine to solve problems. The work of von Neumann added the concept of storage and combined with Turing’s work to provide the basis for most computers designed to this day. ... has proved to be very important in programming. It enables a complex task to be broken down into smaller parts concentrating on what we want to happen rather than how we want it to happen....

Ngày tải lên: 10/03/2014, 02:20

... provisions were: ã The right to treatment information ã The right to privacy and dignity ã The right to refuse treatment ã The right to emergency care ã The right to an advocate Each of these ... fourth edition of Introduction to the Health Professions is dedicated with appreciation and gratitude to many, but especially to: The great teachers who channel their energies into preparing students ... of ambula- tory care, as do prison services. Many of the ambulatory care services evolve into large, highly complex organizations. For example, an executive committee may be elected to administer...

Ngày tải lên: 15/03/2014, 06:20

... writing to the file mynewfile.txt overwrites its existing contents. To append to a file, one of the constructors of the FlieWriter class takes a boolean which if set to true writes text to the ... is stored externally to the application to a .dat file on (the author’s) C: drive. 1.5 Files and File I/O File objects and file streams are useful when an application needs to write data to ... “ “ ); // Output the elements using an iterator. (Iterators are discussed later.) Iterator< String > i = set.iterator( ); // Get an iterator for the // collection. Download free...

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