FREE LINUX/UNIX PDF DOWNLOAD

Today more than 90 percent of supercomputers (including the complete top 10), more than half of all smartphones, many millions of desktop computers, around 70 percent of all web servers, a large chunk of tablet computers, and several appliances (dvdplayers,
washing machines, dsl modems, routers, …) run Linux. It is by far the most commonly used operating system in the world.

Linux kernel version 3.2 was released in January 2012. Its source code grew by almost two hundred thousand lines (compared to version 3.1) thanks to contributions of over 4000 developers paid by about 200 commercial companies including Red Hat, Intel,
Broadcom, Texas Instruments, IBM, Novell, Qualcomm, Samsung, Nokia, Oracle, Google and even Microsoft.

w_mach01

UNIX Programmer’s Manual

Unix For Dummies, 5Th Edition

shell-tutorial

ShellIntro

OReilly Unix in a Nutshell 4th Edition

LinuxFun

linux_commands_08

Linux fundamentals

lcommands

04shell-scripting

Linux internals

UNIX/LINUX COMMANDS

Unix/Linux Command 

NOTE- "DON'T INCLUDE "-" USED AT THE END OF THE EVERY COMMAND..

HERE IT IS USED JUST TO MAKE YOU SEE IT IN A PROPER WAY."

File Commands

1. ls -                                         Directory listing
2. ls -al -                                    Formatted listing with hidden files
3. ls -lt -                                     Sorting the Formatted listing by time modification
4. cd dir -                                  Change directory to dir
5. cd -                                       Change to home directory
6. pwd -                                    Show current working directory
7. mkdir dir -                              Creating a directory dir
8. cat >file -                               Places the standard input into the file
9. more file-                              Output the contents of the file
10. head file-                             Output the first 10 lines of the file
11. tail file -                               Output the last 10 lines of the file
12. tail -f file-                            Output the contents of file as it grows,starting with
                                                  the last 10 lines
13. touch file -                           Create or update file
14. rm file -                                Deleting the file
15. rm -r dir                               Deleting the directory
16. rm -f file                               Force to remove the file
17. rm -rf dir                              Force to remove the directory dir
18. cp file1 file2                         Copy the contents of file1 to file2
19. cp -r dir1 dir2                      Copy dir1 to dir2;create dir2 if not present
20. mv file1 file2                        Rename or move file1 to file2,if file2 is an existing
                                                 directory
21. ln -s file link                         Create symbolic link link to file