Regex is used given text according to different and flexible patterns. It provides a lot of different patterns which can match given text or line. The default behavior of the regex is case sensitive which means upper and lowercase letters are interpreted as different. We can match regex case insensitive or ignore case sensitivity. Case Insensitive As Grep Option grep is very popular tool which is used to filter given text...
Tagged: lower case
Linux provides grep for text filtering. But in some situations we may need more extended tool to match given pattern in given text files. This tool is called Extended Global Regular Expression Print or simply egrep . egrep provides extended features over regular grep tool. Syntax Syntax of egrep command is like below.
egrep FLAG REGEX FILE
FLAG is used to change some behaivour of egrepcommand. REGEX is the pattern we want to...
Windows provides findstr tool to search file contents. These file contents expected to be text and string but binary binary files are accepted too. But searching binary files and content will not give good results. In this tutorial we will look different usage types of the findstr command. Keep in mind that this is different than Windows find command which can be found following tutorial. How To Find Specified Strings In...