Using sed between specific lines only
Since OSX (BSD sed) has some syntax differences to linux (GNU) sed, thought I'd add the following from some hard-won notes of mine:
OSX (BSD) SED find/replace within (address) block (start and end point patterns(/../) or line #s) in same file (via & via & via & section 4.20 here):
Syntax:
$ sed '/start_pattern/,/end_pattern/ [operations]' [target filename]Standard find/replace examples:
$ sed -i '' '2,3 s/,\s\+/,/g' example.txt$ sed -i '' '/DOCTYPE/,/body/ s/,\s\+/,/g' example.txtFind/replace example with complex operator and grouping (cannot operate without grouping syntax due to stream use of standard input). All statements in grouping must be on separate lines, or separated w/ semi-colons:
Complex Operator Example (will delete entire line containing a match):
$ sed -i '' '2,3 {/pattern/d;}' example.txtMulti-file find + sed:
$ find ./ -type f -name '*.html' | xargs sed -i '' '/<head>/,/<\/head>/ {/pattern/d; /pattern2/d;}'Hope this helps someone!