How to remove special ‘M-BM-‘ character using sed command?

To remove the special ‘M-BM-‘ character using the sed command, you can use the s (substitute) command with a regular expression that matches the character and a replacement string.

Here is an example of how you might do this:

sed 's/M-BM-//g' input_file > output_file

This command will open the file input_file, search for any occurrences of the ‘M-BM-‘ character, and replace them with an empty string. The resulting text will be redirected to output_file.

The s command has the following syntax:


The regular_expression is a pattern that describes the character or characters you want to match and replace. The replacement_string is the text that will be substituted for the matched characters.

In the example above, the regular expression M-BM- matches the ‘M-BM-‘ character exactly, and the replacement string is an empty string (//). The g flag at the end of the command tells sed to perform the substitution globally, meaning that it will replace all occurrences of the character in the input, rather than just the first one.

Here are a few more points to consider when using the sed command to remove special characters:

  • The sed command is a powerful tool for processing and transforming text in Linux. It can be used to perform a wide variety of tasks, including searching for and replacing specific characters or patterns of characters in a file.
  • The sed command uses regular expressions to specify the characters or patterns that it should match. Regular expressions are a powerful tool for matching and manipulating text, and they can be used to match a wide variety of patterns. If you are not familiar with regular expressions, you may want to learn more about them before using sed to remove special characters.
  • When using sed to remove special characters, it is important to specify the character or characters that you want to remove exactly. For example, if you want to remove the ‘M-BM-‘ character, you should use the regular expression M-BM- to match it, rather than a pattern like M-.*-, which would match any character sequence that begins with ‘M-‘ and ends with ‘-‘.
  • If you want to remove multiple special characters at once, you can use the sed command with multiple s commands, like this:
sed 's/character1//g; s/character2//g; s/character3//g' input_file > output_file

This will remove all occurrences of character1, character2, and character3 from input_file and write the resulting text to output_file.

I hope this helps! Let me know if you have any more questions.

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