Update cheatsheets

awk

@@ -0,0 +1,41 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# awk
+
+> A versatile programming language for working on files.
+> More information: <https://github.com/onetrueawk/awk>.
+
+- Print the fifth column (a.k.a. field) in a space-separated file:
+
+`awk '{print $5}' {{path/to/file}}`
+
+- Print the second column of the lines containing "foo" in a space-separated file:
+
+`awk '/{{foo}}/ {print $2}' {{path/to/file}}`
+
+- Print the last column of each line in a file, using a comma (instead of space) as a field separator:
+
+`awk -F ',' '{print $NF}' {{path/to/file}}`
+
+- Sum the values in the first column of a file and print the total:
+
+`awk '{s+=$1} END {print s}' {{path/to/file}}`
+
+- Print every third line starting from the first line:
+
+`awk 'NR%3==1' {{path/to/file}}`
+
+- Print different values based on conditions:
+
+`awk '{if ($1 == "foo") print "Exact match foo"; else if ($1 ~ "bar") print "Partial match bar"; else print "Baz"}' {{path/to/file}}`
+
+- Print all lines where the 10th column value equals the specified value:
+
+`awk '($10 == {{value}})'`
+
+- Print all the lines which the 10th column value is between a min and a max:
+
+`awk '($10 >= {{min_value}} && $10 <= {{max_value}})'`