Learn how to use sed with regex for complex string replacements in Unix systems.
regular expression - Using sed to find and replace complex string ...
sed is the Stream EDitor. It can do a whole pile of really cool things, but the most common is text replacement. The s,%,$,g part of the command line is the sed command to execute. The s stands for substitute, the , characters are delimiters (other characters can be used; /, : and @ are popular). The % is the pattern to match (here a literal percent sign) and the $ is the second pattern to ...
I am using sed in a shell script to edit filesystem path names. Suppose I want to replace /foo/bar with /baz/qux However, sed's s/// command uses the forward slash / as the delimiter. If I do tha...
How do I edit a file in a single sed command? Currently, I have to manually stream the edited content into a new file and then rename the new file to the original file name. I tried sed -i, but my
From Sed man page: 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. But it is sed's ability to filter text in a pipeline which ...
What is sed and what is it used for? - Ask Ubuntu
In your example sed 's/foo/bar/' and sed -e 's/foo/bar/' are equivalent. In both cases s/foo/bar/ is the script that is executed by sed. The second option is more explicit, but that is probably not the reason that you often see -e used. The reason for that is that -e makes it possible to use more than one script with the same invocation of sed.