问题
I am trying to escape the spaces in a Linux path. However, whenever I try to escape my backslash I end up with a double slash.
Example path:
/mnt/drive/site/usa/1201 East/1201 East Invoice.pdf
So that I can use this in Linux I want to escape it as:
/mnt/drive/site/usa/1201\ East/1201\ East\ Invoice.pdf
So I'm trying this:
backup_item.gsub("\s", "\\\s")
But I get an unexpected output of
/mnt/drive/site/usa/1201\\ East/1201\\ East\\ Invoice.pdf
回答1:
Stefan is right; I just want to point out that if you have to escape strings for shell use you should check Shellwords::shellescape:
require 'shellwords'
puts Shellwords.shellescape "/mnt/drive/site/usa/1201 East/1201 East Invoice.pdf"
# prints /mnt/drive/site/usa/1201\ East/1201\ East\ Invoice.pdf
# or
puts "/mnt/drive/site/usa/1201 East/1201 East Invoice.pdf".shellescape
# prints /mnt/drive/site/usa/1201\ East/1201\ East\ Invoice.pdf
# or (as reported by @hagello)
puts shellwords.escape "/mnt/drive/site/usa/1201 East/1201 East Invoice.pdf"
# prints /mnt/drive/site/usa/1201\ East/1201\ East\ Invoice.pdf
回答2:
That is the string's inspect value, "a printable version of str, surrounded by quote marks, with special characters escaped":
quoted = "path/to/file with spaces".gsub(/ /, '\ ')
=> "path/to/file\\ with\\ spaces"
Just print the string:
puts quoted
Output:
path/to/file\ with\ spaces
来源：https://stackoverflow.com/questions/19355597/escape-spaces-in-a-linux-pathname-with-ruby-gsub