Jun 3, 2015 · 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 …

Aug 30, 2013 · I'm debugging a shell script and trying to find out the task performed by the following command: sed -i '1,+999d' /home/org_user/data.txt I need to change this command …

Learn how to use sed with regex for complex string replacements in Unix systems.

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

Jan 6, 2011 · To be precise, in s/foo/bar/, only foo is a regular expression, and the rest is other sed syntax. Basically, bar is just a string, though some things like & and \1 have a special …

The single quotes around the sed body will prevent the shell from substituting any variables, so the $ on the left-hand side is escaped only to prevent its special regular expression meaning.

I run this command to find and replace all occurrences of 'apple' with 'orange' in all files in root of my site: find ./ -exec sed -i 's/apple/orange/g' {} \\; But it doesn't go through sub directo...

Feb 11, 2013 · sed uses basic regular expressions by default, enabling use of extended regular expressions is implementation dependent, e.g. with BSD sed you use the -E switch, GNU sed …

Oct 19, 2012 · You can extract the last numbers with this: sed -e 's/.*[^0-9]\([0-9]\+\)[^0-9]*$/\1/' It is easier to think this backwards: From the end of the string, match zero or more non-digit …

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 …