Merge remote-tracking branch 'upstream/master'

117 files changed, 4827 insertions, 3064 deletions

diff --git a/challenge-002/abigail/README.md b/challenge-002/abigail/README.md
index bb5cb18c8f..83ac952703 100644
--- a/challenge-002/abigail/README.md
+++ b/challenge-002/abigail/README.md
@@ -16,11 +16,17 @@ We cannot have a number with just 0's, as that would not be a positive number.
 * [bc](bc/ch-1.bc)
 * [Befunge-93](befunge-93/ch-1.bf93)
 * [C](c/ch-1.c)
+* [Go](go/ch-1.go)
+* [Java](java/ch-1.java)
 * [Lua](lua/ch-1.lua)
 * [Node.js](node/ch-1.js)
+* [Pascal](pascal/ch-1.p)
 * [Perl](perl/ch-1.pl)
 * [Python](python/ch-1.py)
+* [R](r/ch-1.r)
 * [Ruby](ruby/ch-1.rb)
+* [Scheme](scheme/ch-1.scm)
+* [Tcl](tcl/ch-1.tcl)
 
 ## [Challenge #2](https://perlweeklychallenge.org/blog/perl-weekly-challenge-002/#challenge-2)
 
@@ -37,9 +43,16 @@ one number per line. Programs will use an option, -t (to base 35), or
 
 ### Solutions
 * [AWK](awk/ch-2.awk)
+* [Bash](bash/ch-2.sh)
 * [C](c/ch-2.c)
+* [Go](go/ch-1.go)
+* [Java](java/ch-1.java)
 * [Lua](lua/ch-2.lua)
 * [Node](node/ch-2.js)
+* [Pascal](pascal/ch-1.p)
 * [Perl](perl/ch-2.pl)
 * [Python](python/ch-2.py)
+* [R](r/ch-2.r)
 * [Ruby](ruby/ch-2.by)
+* [Scheme](scheme/ch-2.scm)
+* [Tcl](tcl/ch-2.tcl)
diff --git a/challenge-002/abigail/awk/ch-1.awk b/challenge-002/abigail/awk/ch-1.awk
index 6f2ef2064c..b40b9b0616 100644
--- a/challenge-002/abigail/awk/ch-1.awk
+++ b/challenge-002/abigail/awk/ch-1.awk
@@ -1 +1,11 @@
+#!/usr/bin/awk
+
+#
+# See https://theweeklychallenge.org/blog/perl-weekly-challenge-002
+#
+
+#
+# Run as: awk -f ch-1.awk < input-file
+#
+
 {print 0 + $1}
diff --git a/challenge-002/abigail/awk/ch-2.awk b/challenge-002/abigail/awk/ch-2.awk
index b171fcd08f..77148f99c7 100644
--- a/challenge-002/abigail/awk/ch-2.awk
+++ b/challenge-002/abigail/awk/ch-2.awk
@@ -1,6 +1,7 @@
 #!/usr/bin/awk
+
 #
-# See ../README.md
+# See https://theweeklychallenge.org/blog/perl-weekly-challenge-002
 #
 
 #
diff --git a/challenge-002/abigail/bash/ch-1.sh b/challenge-002/abigail/bash/ch-1.sh
index b860cc4aa6..593a174ff3 100644
--- a/challenge-002/abigail/bash/ch-1.sh
+++ b/challenge-002/abigail/bash/ch-1.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 
 #
-# See ../README.md
+# See https://theweeklychallenge.org/blog/perl-weekly-challenge-002
 #
 
 #
diff --git a/challenge-002/abigail/bash/ch-2.sh b/challenge-002/abigail/bash/ch-2.sh
new file mode 100644
index 0000000000..006c46a8d6
--- /dev/null
+++ b/chal