Flex Tutorial
1.0 Flex and Bison Flex and Bison are software tools used for processing structured input. Flex stands for "fast lexical analyzer" and is used for scanning the input and breaking…
1.0 Flex and Bison Flex and Bison are software tools used for processing structured input. Flex stands for "fast lexical analyzer" and is used for scanning the input and breaking…
1.0 Error The vi editor in Ubuntu Linux distribution is not showing color syntax highlighting in the edit window. 2.0 Solution vi is one of the original text editors of…
1. uname command The uname command prints information about the system. uname is a portmanteau word made up from "unix" and "name". uname can be called from the command line…
1.0 Shared Memory Shared memory is an inter process communication (IPC) mechanism in Linux and other UNIX-like systems. Based on input parameters, the kernel provides a (shared) memory segment to…
1.0 Semaphores Semaphores are used for process and thread synchronization. Semaphores are clubbed with message queues and shared memory under the Interprocess Communication (IPC) facilities in Unix-like systems such as…
1.0 awk awk is a filter which takes the input and gives output after matching desired patterns and doing processing linked to matched patterns. awk is well suited for processing…
1.0 sed sed is a stream editor that accepts a list of commands and input file names. It applies the commands one by one on each line of input and…
1.0 grep grep is a program for searching a given string pattern in files. It searches the files for the pattern and prints the lines that contain strings matching the…
bc, the basic calculator under Linux and UNIX environments, provides commands for doing arbitrary precision mathematical calculations. The syntax for basic arithmetic functions is intuitive. Here, we look at the…