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How are two replace commands used in SED?
Two replace commands are used in the following `sed` command. Here, the text, ‘ Count ‘ will be replaced by 100 in the line that contains the text, ‘CSE ‘ and the text, ‘ Count’ will be replaced by 70 in the line that contains the searching pattern, ‘ EEE’.
How can I substitute CSE for count in SED?
Substitute text but only if some other text is not found in the string The following `sed` command will replace the ‘Count’ value in the line that does not contain the text, ‘CSE’. dept.txt file contains two lines that do not contain the text, ‘CSE’. So, the ‘ Count ‘ text will be replaced by 80 in two lines.
Can a sed script be executed without a filename?
If no filename is provided with `sed` command, then the script will work on standard input data. The `sed` script can be executed without any option. Delete all alpha-numeric characters from each line of a file.
How do you change text to uppercase in SED?
Find case insensitive match and replace with all uppercase of the same text ‘\\U’ is used in `sed` to convert any text to all uppercase letter. The following `sed` command will search the word, ‘linux ‘ in the os.txt file and if the word exists then it will replace the word with all uppercase letters.
How to replace multiple patterns at once with SED?
Since there was a answer saying that sed is a stream editor and its replaces are greedily I think that I will need to use some script language for that. Replace ~ with a character that you know won’t be in the string. some text AB some more text “BC” and more text. some text BC some more text “CD” and more text.
How does the sed command search the pattern?
The following `sed` command will search the pattern, ‘Bash’ and if the pattern matches then it will be accessed by ‘\\1′ in the part of replacing text. Here, the text, ‘Bash’ is searched in the input text and, one text is added before and another text is added after ‘\\1’.