Replacing text in sed with escape characters

Replacing text in sed with escape characters

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I have a very large file where I need to replace the characters \x01\n with the character \n. How would this be done with sed? So far I have:

$ sed -i 's/\x01\n/\n' file

extra characters at the end of d command

But perhaps I'm missing a few escape characters.


Don't write \n in the line oriented sed:

sed -i 's/\x01$//' file

Using sed to replace special characters, You need to escape the special characters with a backslash \ in front of the special character, e.g.: sed 's/\*/t/g' test.txt > test2.txt. If you want to find and replace a string that contains the delimiter character ( /) you’ll need to use the backslash ( \) to escape the slash. For example to replace /bin/bash with /usr/bin/zsh you would use. sed -i 's/\/bin\/bash/\/usr\/bin\/zsh/g' file.txt.


I think you are just missing the closing '/':

$ sed -i 's/\x01\n/\n/' file

Using sed to replace string with special characters in XML file , Putting shell variables in single quotes disables their interpretation. That's why your command has no effect. The single quotes around the sed body will prevent the shell from substituting any variables, so the $ on the left-hand side is escaped only to prevent its special regular expression meaning. – glenn jackman Jun 19 '17 at 14:24


This might work for you (GNU sed):

sed -zi 's/\x01\n/\n/g' file

This slurps in the whole (or parts delimited by \x00) file and replaces \x01\n by \n globally.

How to use sed to replace text with special characters, You can implement the following logic: Define a string variables symbols with the symbols to pick from randomly; Loop as long as the string contains spaces  Escaping single quotes did not work for me (bash on mac), but using different quote types for wrapping the command than the quote being replaced did work. eg: sed 's/"/bla/g' to replace " with bla or sed "s/'/bla/g" to replace '` with bla – rrr May 1 '18 at 19:47


How to Use sed to Find and Replace String in Files, With sed you can search, find and replace, insert, and delete strings the delimiter character ( / ) you'll need to use the backslash ( \ ) to escape  sed -i -e 's/word1/word2/g' -e 's/xx/yy/g' input.file. ## use + separator instead of / ##. sed -i 's+regex+new-text+g' file.txt. The above replace all occurrences of characters in word1 in the pattern space with the corresponding characters from word2.


Manipulate Text from the Command Line with sed, sed can also be used to modify streams of text rather than files, use the escape character \ to transform the next character into a literal match. Character codes often contain code positions which are not assigned to any visible character but reserved for control purposes. You can easily find and replace them with the help of shell substitute: sed -e 's/'$ (echo "octal-value")'/replace-word/g'


sed, a stream editor, 4.3 selecting lines by text matching (The % may be replaced by any other single character.) There are special character sequences ( \` and \' ) which always match the beginning or the end of  The following command will combine the `sed` command with `cat` command. The first `sed` command will take input from os.txt file and send the output of the command to second `sed` command after replacing the text’ ‘Linux’ by ‘Fedora’. The second `sed` command will replace the text, ‘Windows’ by ‘Windows 10’.