join example

Author: klashxx

files/passwd

@@ -1,5 +1,5 @@
-jd001:x:1032:666:Javier Diaz::/bin/rbash
-ag002:x:8050:668:Alejandro Gonzalez::/bin/rbash
-jp003:x:1000:666:Jose Perez::/bin/bash
-ms004:x:8051:668:Maria Saenz::/bin/rbash
-rc005:x:6550:668:Rosa Camacho::/bin/rbash
+jd001:x:1032:001:Javier Diaz::/bin/rbash
+ag002:x:8050:002:Alejandro Gonzalez::/bin/rbash
+jp003:x:1000:001:Jose Perez::/bin/bash
+ms004:x:8051:002:Maria Saenz::/bin/rbash
+rc005:x:6550:002:Rosa Camacho::/bin/rbash

join_users_groups.awk

@@ -0,0 +1,11 @@
+# Passwd and Group
+# Example: awk -f join_users_groups.awk files/group files/passwd
+#
+# 
+
+
+BEGIN{
+    FS=":"
+    }
+NR == FNR{g[$3]=$1;next}
+$4 in g{print $1""FS""g[$4]}