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One way to make the GNU version of the SED to work on the Mac OS X, is to directly install the gnu-sed along with the default names which will assure you that you won't have to run different commands on both the operating systems.
Bash allows you to perform pattern replacement using variable expansion like (${var/pattern/replacement}). And so, does sed like this (sed -e 's/pattern/replacement/'). However, there is more to sed than replacing patterns in text files.
sed is a stream editor. A stream editor is used to perform basic text transformations on an input stream (a file or input from a pipeline). While in some ways similar to an editor which permits scripted edits (such as ed ), sed works by making only one pass over the input(s), and is consequently more efficient.
If you are on a OS X, this probably has nothing to do with the sed command. On the OSX version of sed, the -i option expects an extension argument so your command is actually parsed as the extension argument and the file path is interpreted as the command code.
Try adding the -e argument explicitly and giving '' as argument to -i:
find ./ -type f -exec sed -i '' -e "s/192.168.20.1/new.domain.com/" {} \;
See this.
You simply forgot to supply an argument to -i. Just change -i to -i ''.
Of course that means you don't want your files to be backed up; otherwise supply your extension of choice, like -i .bak.
On OS X nothing helps poor builtin sed to become adequate. The solution is:
brew install gnu-sed
And then use gsed instead of sed, which will just work as expected.
Probably your new domain contain / ? If so, try using separator other than / in sed, e.g. #, , etc.
find ./ -type f -exec sed -i 's#192.168.20.1#new.domain.com#' {} \;
It would also be good to enclose s/// in single quote rather than double quote to avoid variable substitution or any other unexpected behaviour
Simply add an extension to the -i flag. This basically creates a backup file with the original file.
sed -i.bakup 's/linenumber/number/' ~/.vimrc
sed will execute without the error
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