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How do I grep a string with a slash?
The forward slash is not a special character in grep, but may be in tools like sed, Ruby, or Perl. You probably want to escape your literal periods, though, and it does no harm to escape the slash. This should work in all cases: \.
How do you remove a slash from a string?
str = str. replace(“\\”, “”); replaceAll() treats the first argument as a regex, so you have to double escape the backslash. replace() treats it as a literal string, so you only have to escape it once.
How do you find a backslash in a string?
To search for a backslash character itself, double it \\ so that its first appearance will escape the second. For example, perhaps the most common “special character” in grep is the dot: “.”.
What is Unescaping a string?
Escaping a string means to reduce ambiguity in quotes (and other characters) used in that string. For instance, when you’re defining a string, you typically surround it in either double quotes or single quotes: “Hello World.”
How to insert strings containing slashes with SED?
So if you use sed to return some HTML templates (on a server), use double backslash instead of single:
When do you use forward slashes in SED?
The trailing ‘g’ just says to replace all occurrences on a given line, not just the first. And of course you need to separate the ‘s’, the ‘g’, the old, and the new from each other. This is where you must use forward slashes as separators.
Why does the command replace SED not work?
The problem is the / in the text you want to replace. This is a special character for sed and therefore you need to escape it with a \\. Also as pointed out in the comments: the command also fails because of the -e option which expects a script. Thanks for contributing an answer to Unix & Linux Stack Exchange!
How to replace old text with new text in SED?
This may be leaner and clearer that filtering through a command such as tr or sed. The sed command in this case is ‘s/OLD_TEXT/NEW_TEXT/g’. The leading ‘s’ just tells it to search for OLD_TEXT and replace it with NEW_TEXT.