sed: refresh/add pages (#7931)

pages/osx/sed.md

@@ -1,36 +0,0 @@
-# sed
-
-> Edit text in a scriptable manner.
-> More information: <https://ss64.com/osx/sed.html>.
-
-- Replace the first occurrence of a string in a file, and print the result:
-
-`sed 's/{{find}}/{{replace}}/' {{filename}}`
-
-- Replace all occurrences of an extended regular expression in a file:
-
-`sed -E 's/{{regular_expression}}/{{replace}}/g' {{filename}}`
-
-- Replace all occurrences of a string [i]n a file, overwriting the file (i.e. in-place):
-
-`sed -i '' 's/{{find}}/{{replace}}/g' {{filename}}`
-
-- Replace only on lines matching the line pattern:
-
-`sed '/{{line_pattern}}/s/{{find}}/{{replace}}/' {{filename}}`
-
-- Print only text between n-th line till the next empty line:
-
-`sed -n '{{line_number}},/^$/p' {{filename}}`
-
-- Apply multiple find-replace expressions to a file:
-
-`sed -e 's/{{find}}/{{replace}}/' -e 's/{{find}}/{{replace}}/' {{filename}}`
-
-- Replace separator `/` by any other character not used in the find or replace patterns, e.g. `#`:
-
-`sed 's#{{find}}#{{replace}}#' {{filename}}`
-
-- [d]elete the line at the specific line number [i]n a file, overwriting the file:
-
-`sed -i '' '{{line_number}}d' {{filename}}`