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cd : Change Directory The cd command, which stands for “change directory”, changes the shell’s current working directory. It is a builtin command, which means that it is executed directly by your shell, instead of launching an external program. cd is a command-line OS shell commandused to change the current working directory in operating systems such as … Read more
cp command under a Linux, UNIX-like, and BSD like operating systems is used to copy files and directories . cp is the command entered in a Unix and Linux shell to copy a file from one place to another, possibly on a different filesystem. The original file remains unchanged, and the new file may have the same … Read more
pwd prints the full pathname of the current working directory. In Unix based system like linux and some other operating systems, the pwd command writes the full pathname of the current working directory to the standard output. pwd = print working directory.
SELinux – Security-Enhanced Linux Linux is regarded as one of the most secure operating systems you can use today, that is because of its illustrious security implementation features. For starters, SELinux is described as a mandatory access control (MAC) security structure executed in the kernel. SELinux offers a means of enforcing some security policies which would otherwise not … Read more
Birth Of MySQL MySQL started out with the intention of using the mSQL database system to connect to tables using fast low-level (ISAM) routines. However, after some testing, They conclude that mSQL was not fast enough or flexible enough. This resulted in a new SQL interface to our database but with almost the same API interface … Read more
What is a process? Except the kernel, Everything on a Linux system runs in the context of a process. Process can be loosely defined as a running program. Every process on a Linux system has a unique Process ID (PID). Users and programs use this PID to communicate with the process. The key command to … Read more
If a process is hanging in a bad state and it won’t go away even after sending it a SIGTERM, you can send it the SIGKILL (Signal number 9) signal, which is a forced shutdown of a process. Note that with SIGKILL the process will not have opportunity to clean up any system resources it … Read more
C-Free is a professional C/C++ integrated development environment (IDE) that support multi-compilers. Use of this software, user can edit, build, run and debug programs freely. With C/C++ source parser included, although C-Free is a lightweight C/C++ development tool, it has powerful features to let you make use of it in your project. C-Free Packages package name: … Read more
Here a C program to calculate simple interest using for loop. main ( ) { int p, n, count ; float r, si ; for ( count = 1 ; count <= 3 ; count = count + 1 ) { printf ( “Enter values of p, n, and r ” ) ; scanf ( … Read more
For loop is probably the most popular looping instruction. The for allows us to specify three things about a loop in a single line: Setting a loop counter to an initial value. Testing the loop counter to determine whether its value has reached the number of repetitions desired. Increasing the value of loop counter each time the … Read more