Tried something like this but do | The UNIX and Linux Forums I am trying to replace a string inside a text file with a variable. Active 9 years, 4 months ago. A simple single quote (') should have been used here probably. replace double backslash with singel backslash. Try escaping the '.' ... linux + sed - replace only the right most side char of string. hi hope somebody can help, there seems to be bit on the net about this, but still cant make it work the way i need. i need to replace '/' forward slash with \\/(backward slash follwed by a forward slash) using sed command when the forward slash occurs as a first character in a file.. i have a file live this. sed 's/this/that/' text.txt (replace first occurrence of pattern "this" with "that") sed 's/this/that/' text.txt ... expressions as demonstrated in lab8 except the regular expression must be contained within delimiters such as the forward slash "/" when using the sed utility. Tried something like this but doesn't seem to work. Issue the following linux command: sed … In JSON data (and many other systems such as C# for example) the back slash acts as an "escape" character, allowing you to enter "special characters" into a string by adding a '\' before the character or code. In the end you need to provide a filename. Sed is not needed if doing simple replacements in a scripts, bash can do that out of the box. With bash string manipulation it’s easy to replace strings in your scripts. Code: mm dd ff /dev/name1 mm dd ff /dev/name2 mm dd ff /dev/name3 mm dd ff /dev/name4. Please test your idea on my file, as problem is not as obvious as it might seem to be - this is why I asked about it. sed -i `s#^//[ \t]test#test#g' You are using a backtick (`) which is interpreted by your shell rather than Sed. The delimiter of choice is a forward slash (/), which is the most commonly used delimiter. i am trying to replace double backslash into single backslash.but its not happenuig correctly. 14. Hello, I am creating xml Files dynamically by reading the data from sql and assigning name by one of the fields in sql table. About Holy Books; How-to; Contact; Privacy Policy; SoMe; How to replace slash in string Find and Replace with special characters, Finally, to top it off, you put a backslash escape in front of the forward-slash character that was supposed to be the middle delimiter for the "s///' Perl Double-q Operator, qq The "qq" operator replaces the double quote surrounding a string by its parentheses. sed command to replace slash with backslash: stelmed: Slackware: 13: 08-19-2010 06:01 AM: forward slash being treated as escape character in shell? If an extension is supplied (ex -i.bak), a backup of the original file is created. Inside double quotes some characters are expanded, ... saying to replace all matches with the replacement. And for the ToString variable: escape the '\' so that shell interpreter will expand to a single slash (in the third point below), when defining this variable, use single quotes so it is not expanded, and; expand (by double quoting) when using it within sed, to get the correct end result. AWK or SED to replace forward slash. Ask Question Asked 9 years, 4 months ago. Hi Fellow Flow-ers, I'm not familar with the replace expression so need some help please. As the forward slash (/) is special character in regular expressions, it has to be escaped with a backward slash (\). The syntax is like so: But switch to: sed "s=old=new=" and now slash is just another character that need not be escaped. If you use: sed "s/old/new/" then slash becomes a special character and you must escape any slashes that appear in either the old or new strings. /) by calling sed from find.To do that you have to double-escape the backslashes, because the string is going to be processed twice: once by the invocation of find and then a second time by the invocation of sed.This should give you the following: Replace Forward Slash with sed. / / / - Delimiter character. Note that since the shell will not do anything to i by itself, it needn't be quoted. i need to replace '/' forward slash with \/(backward slash follwed by a forward slash) using sed command when the forward slash occurs as a first character in a file.. Inside the Quote” s is used for separating every file rather than a single line long text, inside the forward-slash (/) you need to pass the string name which you want to remove, In between double forward-slash (//) need to provide a word which you want to keep. Replace Forward Slash with sed i need to replace '/' forward slash with \/(backward slash follwed by a forward slash) using sed command when the forward slash occurs as a first character in a file.. For example, you use it to introduce a double quote without ending the string: "hello \"Member 13199106\"" Which creates a string like this: Ask Question Asked 3 years, 8 months ago. This question is for testing whether or not you are a human visitor and to prevent automated spam submissions. Subject: [java-l] replace forward slash with double slash. bash sed. If you want the replace some occurences of a URL in a file the sed command looks really ugly because you have to escape every slash "/" with a backslash "\" To make it look a lot cleaner you could just change the delimiter used by sed: We have an issue where our website does not allow ; as a valid seperator for multiple email addresses. majormark, you missed the point of spirtle's post. sed search and replace with variable containing slash. What characters do I need to escape when using sed in a sh script , If you choose a character that has a special meaning in a BRE and you want to include it literally, you'll need three backslashes; I do not recommend this, as it may SED provides two special characters which are treated as commands. This option tells sed to edit files in place. share ... everything inside single quotes is treated literally by shell and as that passed to sed. How to delete all characters in one line after “]” with sed? One possibility is that rather than the -i flag, or additionally to the -i flag, you used sed's i (insert) command. After using cat -A myfile it seems problem that those spaces are … s - The substitute command, probably the most used command in sed. However, sed can use any character as a delimiter. This behavior does not apply to forward slash. Sed multi-line replace over escaped strings. Sed special characters. But the names has a "\" in them like c:\New3\sample\Traffic Signal Preventative Vehicle\Pedestrian Signal Heads.xml.. Could anyone tell me how to … in the sed regex, to be more accurate. I am escaping the forward slash and backslash - so not sure where I have gone wrong here. The essence of your question is how to replace a backslash (i.e. 2. Thanks for your response. B) if you want the ability to represent any arbitrary character in a string, some version of this feature is required. Syntax: originalString.replace(/\//g, replacementString) -i - By default, sed writes its output to the standard output. That would produce the output you showed, provided there was already something in the file. Stack Exchange network consists of 176 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share … Viewed 5k times 6. Active 3 years, 8 months ago. sed replace slash. Please Sign up or sign in to vote. Menu. Also, to replace all the forward slashes on the string, the global modifier (g) is used. It can be any character but usually the slash (/) character is used. The hashes (#) are your chosen delimiter, a good alternative to the common forward slash (/) as your match is about this same character and this avoids the need for escaping. And sed comes handy when replacing strings in multiple files, using regex patterns if needed.. Bash string manipulation. Here sed is used to replace the text foo with bar before it is echoed. \) with a forward slash (i.e. Does anyone have idea how to find and replace that string with sed (or any other command line tool)? so change that delimiter character to something that is not used in either the old or new strings. It will replace all the forward slashes in the given string. Tried something like this but doesn't seem to work. 2. Hi, I have a string as d:abcshailxyz which is read from database and I have to create a log file (status.log) in this path so i get the string as path and append with the path the filename as path=path+filename; I am getting the following error:- In fact, it will automatically use the character following the s as a delimiter. Tool ) sed replace double forward slash replacing strings in multiple files, using regex patterns needed. String with sed ( or any other command line tool ) to delete all characters in line. 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