Interested to Buy Any Domain ? << Click Here >> for more details...
What is Awk and Sed?
- 1 Answers
- 4475 Views
- I also Faced
- E-Mail Answers
Answer / shoaib
sed is a stream editor. It works with streams of characters on a per-line basis. It has a primitive programming language that includes goto-style loops and simple conditionals (in addition to pattern matching and address matching). There are essentially only two "variables": pattern space and hold space. Readability of scripts can be difficult. Mathematical operations are extraordinarily awkward at best.
awk is oriented toward delimited fields on a per-line basis. It has much more robust programming constructs including if/else, while, do/while and for (C-style and array iteration). There is complete support for variables and single-dimension associative arrays plus (IMO) kludgey multi-dimension arrays. Mathematical operations resemble those in C. It has printf and functions. The "K" in "AWK" stands for "Kernighan" as in "Kernighan and Ritchie" of the book "C Programming Language" fame (not to forget Aho and Weinberger). One could conceivably write a detector of academic plagiarism using awk.
Both programs use regular expressions for selecting and processing text.
| Is This Answer Correct ? | 0 Yes | 0 No |
how make a bootable dick
0 Answers Accenture, HCL, Wipro,
Explain the reasons for implementing process migration?
some os have a tree structure file system that limits the depth of a tree and small number of levels.what limit does this have on user? how does this simplify file system design?
Explain about busy waiting?
Explain the difference between fat & ntfs?
What is LOM and how do you access it?
what basically a system call is?
Explain about dynamic memory allocation algorithm?
Let us suppose one application needs 2GB RAM to run and dependent plugins will be load while running application. Here My doubt is how many processes will create for this application. I know the concept of virtual memory, which will provide RAM on demand. My straight forward question is what is the size of the process and is it single process will create by operating system to complete the task of my application.??? Thanks in Advance.
directories can be implemented either special files that can only be accused in limited ways or can be implemented as ordinary data files. what are advantages and disadvantages of this approach?
what is active directory
Explain the reasons for implementing process migration? How is the process address space handled during process migration?
SDK 
