From 289c9d8f7dd54097cd69bd170c57b0b7f79e681c Mon Sep 17 00:00:00 2001
From: Arkadiusz Hypki <arkadiusz@hypki.net>
Date: Mon, 18 Mar 2024 18:15:48 +0100
Subject: [PATCH] 'Added simple AWK scripts;'

---
 04_AWK/1.awk                    | 17 +++++++++++++++++
 04_AWK/2.awk                    | 16 ++++++++++++++++
 04_AWK/3.awk                    | 17 +++++++++++++++++
 04_AWK/countries.csv            |  2 +-
 04_AWK/stars/awk_excercises.txt |  4 ++--
 5 files changed, 53 insertions(+), 3 deletions(-)
 create mode 100644 04_AWK/1.awk
 create mode 100644 04_AWK/2.awk
 create mode 100644 04_AWK/3.awk

diff --git a/04_AWK/1.awk b/04_AWK/1.awk
new file mode 100644
index 0000000..26ca627
--- /dev/null
+++ b/04_AWK/1.awk
@@ -0,0 +1,17 @@
+BEGIN {
+	print "POCZATEK"
+	sum = 0.0;
+}
+
+{
+	country = $1;
+	if ($2 > 40)
+		print country, $2, NF
+
+	sum += $2;
+}
+
+END {
+	print "KONIEC"
+	print "Sum of the 2nd columns is ", sum
+}
\ No newline at end of file
diff --git a/04_AWK/2.awk b/04_AWK/2.awk
new file mode 100644
index 0000000..11b029e
--- /dev/null
+++ b/04_AWK/2.awk
@@ -0,0 +1,16 @@
+BEGIN {
+	sum = 0.0;
+	l = 0;
+}
+
+{
+	if ($2 > 40 && l > 0)
+		print "Country", $1, "has", $2, " mln of people, ", "nr of all columns=", NF
+
+	sum += $2;
+	l++;
+}
+
+END {
+	print "Num of all people is", sum
+}
\ No newline at end of file
diff --git a/04_AWK/3.awk b/04_AWK/3.awk
new file mode 100644
index 0000000..bd25607
--- /dev/null
+++ b/04_AWK/3.awk
@@ -0,0 +1,17 @@
+BEGIN {
+	sum = 0.0;
+}
+
+{
+	pop = $2;
+	if ($2 > 40 && $2 < 4000) {
+		print $2, pop, NF;
+		print $2, pop, NF;
+	}
+
+	sum += pop;
+}
+
+END {
+	print "Sum of all people is ", sum
+}
\ No newline at end of file
diff --git a/04_AWK/countries.csv b/04_AWK/countries.csv
index cb1d0d3..0d4d37b 100644
--- a/04_AWK/countries.csv
+++ b/04_AWK/countries.csv
@@ -1,4 +1,4 @@
-#name population area
+#    name population area
 Poland 38 360
 Poland 38 360
 Germany 78 500
\ No newline at end of file
diff --git a/04_AWK/stars/awk_excercises.txt b/04_AWK/stars/awk_excercises.txt
index 3461acf..e728e0d 100644
--- a/04_AWK/stars/awk_excercises.txt
+++ b/04_AWK/stars/awk_excercises.txt
@@ -16,6 +16,6 @@ So, BH formes if the type was not 14 in column 17, but in the same line, in the
 
 New task
 
-4. Test, in which places all the mergers take place.
+4. Test in which places all the mergers take place.
 
-A merger is an even in which there non-zero value in inter** columns. If there some value in such a column it means that two or more stars merged together, creating a new object. The position in which it took place in star cluster is denoted with the column 'r1'. Compute a histogram for such events for any fiven timestep. Write everything into one file.
\ No newline at end of file
+A merger is an even in which there non-zero value in inter** columns. If there some value in such a column it means that two or more stars merged together, creating a new object. The position in which it took place in star cluster is denoted with the column 'r1'. Compute a histogram for such events for any given timestep. Write everything into one file in order to plot it. 
\ No newline at end of file