awk: add print every nth line example (#2008)

2018-02-22 22:05:11 -08:00
parent d7cf40e99c
commit 2926835dd6
1 changed files with 4 additions and 0 deletions
--- a/pages/common/awk.md
+++ b/pages/common/awk.md
@@ -21,3 +21,7 @@
 - Sum the values in the first column and pretty-print the values and then the total:

 `awk '{s+=$1; print $1} END {print "--------"; print s}' {{filename}}`
+
+- Print every third line starting from the first line:
+
+`awk 'NR%3==1' {{filename}}`