7/7/2023 0 Comments The art of sed![]() ![]() Standard output (also known as stdout) is the output of a command that is usually printed to the shell/console.The processed text is output as standard output – which can continue to be used as a stream or can be sent to a file.It is optional as sed can read from the text being piped to it as a stream.INPUT-FILE is the path to the text file you want to perform the operations on.These commands can also be defined in a file using the -f option.These commands are what you use to tell sed what to do with the incoming text.COMMANDS are a list of commands/operations from the below table, provided as a string.OPTIONS will be a list of options from the below table.Sed is run from the Linux command line/shell and has the following syntax: sed COMMANDS Log files are often jam-packed full of entries that you don’t want to see when you’re chasing an issue – sed is one way you can filter the output from a giant log file to only include the entries you are looking for. Why?īeing able to modify text – either from a file or as is it output from an application – is useful. One simple example of where sed can be used is doing a simple find-and-replace for a word in a text document – the text with the words replaced can then be saved to a new file or overwrite the original. The sed ( Stream EDitor) command in Bash/ Linux reads text from a stream or file and performs line-by-line operations on it based on a set of supplied criteria. ![]()
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