The capture groups in sed are formed by applying parenthesis to regular expressions or the operation that the user wants to perform. How to make capture groups using sed command in Ubuntu It can be used to get the pinpoint information by searching the specific part inside a text file as well as the manipulation operations can also be performed on that specific match. There may be one of the following purposes behind the capture groups: So, Let’s start today’s guide: How capture groups workĪs discussed above, capture groups are the specific part of any line, or text file. In this detailed guide, we have briefly described the concept of capture grouping, its working and usage with sed.įirstly, we will get some deep insight into the capture groups and then we’ll proceed to its usage with sed: Capturing group refers to another advanced feature of this tool the group capturing functionality of sed allows the user to get the specific part of a text file or a line. The reason behind its popularity is one line command operation: which means that it can manage text files using terminal and the users do not have to open and manually edit any text file. There is another well-known editor known as “ Stream Editor (sed)” sed command line utility of Ubuntu provides an extensive support to manage text files this tool is ranked in topmost editors because of the advanced features that it offers while dealing with text files. These tools assist to edit, delete, substitute, the text inside text files however, the users have to open the file using any of these editors and manually perform the changes that are to be made. Linux and its distros provide a variety of tools and command line utilities to access and manage text files like the default editor, vim, nano. The text file handling operations play a vital role in the daily life of a computer user as to deal with text is a common among the users of all professions.
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