نظرات ياداشت Cellular automaton

+ اميرحسين

Chapter 7: awk Revisited: Getting Starting with awk
Predefined variables of awk
Doing arithmetic with awk
User Defined variables in awk
Use of printf statement
Use of Format Specification Code
if condition in awk
Loops in awk
Real life examples in awk
awk miscellaneous
sed - Quick Introduction
Redirecting the output of sed command
How to write sed s?
More examples of sed
Chapter 8: Examples of Shell s: Logic Development:
Shell to print given numbers sum of all digit
Shell to print contains of file from given line number to next given number of lines
Shell to say Good morning/Afternoon/Evening as you log in to system
Shell to find whether entered year is Leap or not
Sort the given five number in ascending order (use of array)
Command line (args) handling:
Adding 2 nos. suppiled as command line args
Calculating average of given numbers on command line args
Finding out biggest number from given three nos suppiled as command line args
Shell to implement getopts statement.
Basic math Calculator (case statement)
Loops using while & for loop:
Print nos. as 5,4,3,2,1 using while loop
Printing the patterns using for loop.
Arithmetic in shell ing:
Performing real number calculation in shell
Converting decimal number to hexadecimal number
Calculating factorial of given number
File handling:
Shell to determine whether given file exist or not.
Screen handling/echo command with escape sequence code:
Shell to print "Hello World" message, in Bold, Blink effect, and in different colors like red, brown etc.
Background process implementation:
Digital clock using shell
User interface and Functions in shell :
Shell to implements menu based system.
System Administration:
Getting more information about your working environment through shell
Shell to gathered useful system information such as CPU, disks, Ram and your environment etc.
Shell to add DNS Entery to BIND Database with default Nameservers, Mail Servers (MX) and host
Integrating awk with shell :
to convert file names from UPPERCASE to lowercase file names or vice versa.