backslash

This question already has an answer here: How to escape backslashes in R string 3 answers I'm working in R and having troubles escaping the backslash. I am using the library stringr . install.packages("stringr", repos='http://cran.us.r-project.org') library("stringr") I would like to do str = str_replace_all(str, "\", "") So I tried str = str_replace_all(str, "\\", "") but it won't work. What should I do? I found a solution that works str = gsub("([\\])","", str) Use Hmisc::escapeRegex and Hmisc::escapeBS which automatically escapes backslashes and other regex special characters. 来源： https:/

here is my string: var str = "This is my \string"; This is my code: var replaced = str.replace("/\\/", "\\\\"); I can't get my output to be: "This is my \\string" I have tried every combination I can think of for the regular expression and the replacement value. Any help is appreciated! thegajman Got stumped by this for ages and all the answers kept insisting that the source string needs to already have escaped backslashes in it ... which isn't always the case. Do this .. var replaced = str.replace(String.fromCharCode(92),String.fromCharCode(92,92)); The string doesn't contain a backslash, it

I need to show the name of the currently selected file (in <input type="file"> element). Everything is fine, the only problem is I'm getting this kind of string "C:\fakepath \typog_rules.pdf" (browset automatically puts this as value for the input element). When I try to split the string by '\' or '\\' it fails because of unescaped slashes. Attempts to match/replace slashes fails too. Is there a way around this? I need this to work at least in Opera and IE (because in other browsers I can use FileReader) E.G. I'm getting "C:\fakepath\typog_rules.pdf" as input and want to get "typog_rules.pdf"

I have begun to combine different commands in the linux terminal. I am wondering why the backslash and semicolon are required for a command such as: find ./ -name 'blabla' -exec cp {} ./test \; when a simple cp command is simply: cp randomfile ./test without the \; Are they to clearly indicate the end of a command, or is it simply required in the documentation? What is the underlying principle? Thank you! kenorb The backslash before the semicolon is used, because ; is one of list operators (or && , || ) for separating shell commands. In example: command1; command2 The find utility is using ;

import os path= os.getcwd() final= path +'\xulrunner.exe ' + path + '\application.ini' print final I want the out put: c:\python25\xulrunner.exe c:\python25\application.ini I don't want backslash to work as string, i mean don't want it to escape or do anything special. But i get an error Invalid \x escape How can i use a '\' as a '\' and not an escape? To answer your question directly, put r in front of the string. final= path + r'\xulrunner.exe ' + path + r'\application.ini' But a better solution would be os.path.join : final = os.path.join(path, 'xulrunner.exe') + ' ' + \ os.path.join(path,