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--- bash:files:find_replace_a_string_within_a_file [2021/02/10 16:12] – peter
+++ bash:files:find_replace_a_string_within_a_file [2021/02/10 16:14] (current) – [Put the output of file f1 into the pattern space of file f2] peter
@@ Line 30: / Line 30: @@
 ----
-===== Put the output of file f1 into the pattern space of file f2 =====
+===== Put the output of file1 into the pattern space of file2 =====
-<file text f1>
+<file text file1>
-aaaaaaaaaaaaaaaaaa //these line go in file f2
+aaaaaaaaaaaaaaaaaa //these line go in file2
 aaaaaaaaaaaaaaaaaa
 aaaaaaaaaaaaaaaaaa
 </file>
-<file text f2>
+<file text file2>
 Pattern_start
 __________ //these are the line to be replaced
@@ Line 46: / Line 46: @@
 <code bash>
-sed -n '/Pattern_start/,/Pattern_end/{/^Pattern/! d;}" file2 | sed "/Pattern_start/r f1"
+sed -n '/Pattern_start/,/Pattern_end/{/^Pattern/! d;}" file2 | sed "/Pattern_start/r file1"
 </code>
@@ Line 55: / Line 55: @@
 </WRAP>
+----
+If the lines between Pattern_start and Pattern_end contain only hyphens then you can use this:
+<code bash>
+sed -n '/Pattern_start/,/Pattern_end/{/^---*/d;}" file2 | sed "/Pattern_start/r file1"
+</code>
-If the lines between Pattern_start and Pattern_end contain only hyphens then you can use this