What is grep in Linux command? The grep command can search for a string in groups of files. When it finds a pattern that matches in more than one file, it prints the name of the file, followed by a colon, then the line matching the pattern.
What does awk command do? Awk is a utility that enables a programmer to write tiny but effective programs in the form of statements that define text patterns that are to be searched for in each line of a document and the action that is to be taken when a match is found within a line. Awk is mostly used for pattern scanning and processing.
What ls command in Linux? “ls” is one of the most frequently used commands in Linux. It is used to list down the files and sub-directories within your current directory. This command is equally useful for normal users as well as for system administrators.
What is grep in bash? The grep command searches the given files for lines containing a match to a given pattern list. In other words, use the grep command to search words or strings in a text files. When it finds a match in a file, it will display those line on screen.