uppercase – POFTUT

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Linux egrep Command Tutorial with Examples

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.

FLAG is used to change some behaivour of egrepcommand. REGEX is the pattern we want to...


Javascript Regular Expression Operation

Regular expression is the language to define specific pattern for text data. Javascript supports regular expression. Regular expression is generally used like below. We will look different type of usage examples of regular expression.

str is the text data we want to regex. re is our regex object to regex. re.exec() gets text data and executes regular expression. This will return an array of matched strings which is [“poftut”] in this example Regex Only...


Javascript String Variable Types

While developing Javascript applications we generally need some type that can hold text and string data. We call this type of variable as a string. The string can hold names, street info, paragraph, explanation, etc. The string is the type used for text data. String variables can be defined in various ways.

These are string variables

val is a String object the very similar to a string variable There...


Python String Variable Type

The string is a type used to hold text data in Python programming language. We can hold name, surname, address, text or similar data in strings. There are different functions that can be used with these string data. In this tutorial, we will look at them in detail. Define String Variable Defining string is easy as just setting string value into a variable by using quotes. In this example, we...

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