Showing posts from 2010Show all
Linux-Shell Programming
1. Write a program to print details of currently logged in users, print date and calendar? #/bin/bash echo "Current login us…
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Linux-More commands
To show the full path of shell commands found in your path which <command name> eg: which grep //output like: /bi…
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Linux-Working with files
To find the type of a file file <file name> To create a file cat > filename.txt //type the contents and press Ctrl+D to …
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Linux-Working with directories
To print working directory pwd To change directory To return to home directory cd To change into specified directory name cd <direc…
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Linux-help commands
To get help on commands help <command name> eg: help cat <command name> --help eg: grep --help <com…
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Linux-Directory Layout
Directory Description The nameless base of the file system. All other directories, files, drives, and devices are …
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Linux-basics
Character Description \ Escape character. If you want to reference a special character, you must “escape” it with a bac…
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Java-Multithreading
class Threading { public static void main(String[] args) { /* Method No.1 Counter ctr = new Co…
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Java-TCP socket programming
import java.net.*; import java.io.*; public class Client1 { public static void main(String[] args) throws Ex…
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Java-Serialization and De-serialization
import java.io.*; public class Student implements Serializable { private int rollNo; private String name; transient int age; public Student(i…
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Java-Renaming a file
import java.io.*; class TestFile { public static void main(String[] args) throws Exception { File file = new File(args[0]); System.out.println(f…
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Java-Moving a file
import java.io.*; public class MoveFile { public static void main(String args[]) throws IOException { switch (args.length) { case 0: Syste…
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Java-Copying a file
import java.io.*; public class CopyFile { public static void main(String[] args) throws IOException { switch (args.length) { case 0: Syste…
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Java-Writing to a file
import java.io.*; public class WriteFile { public static void main(String args[]) throws IOException { if (args.length != 0) { File file …
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Java-Reading a file
import java.io.*; public class ShowFile { public static void main(String args[]) throws IOException { if…
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