diff --git a/1990/jaw/Makefile b/1990/jaw/Makefile
index ee5a5042c..ae9b0c149 100644
--- a/1990/jaw/Makefile
+++ b/1990/jaw/Makefile
@@ -67,7 +67,7 @@ CINCLUDE=
 
 # Optimization
 #
-OPT= -O3
+OPT=
 
 # Default flags for ANSI C compilation
 #
diff --git a/1990/jaw/README.md b/1990/jaw/README.md
index 0f3590854..89f0192df 100644
--- a/1990/jaw/README.md
+++ b/1990/jaw/README.md
@@ -67,7 +67,7 @@ shark.sh, contains a 'jaw.c' embedded within it!
 The sender must have `compress` and `btoa`. To send, try:
 
 ```sh
-sh shark.sh jaw.* README.md > receive
+./shark.sh jaw.* README.md > receive
 ```
 
 The resulting file, `receive`, unpacks the input files
@@ -86,7 +86,7 @@ cmp ../README.md README.md
 ### ABSTRACT
 
 #### Minimal, Universal File Bundling (or, Functional Obfuscation in a Self-Decoding Unix Shell Archive)
-\
+
 James A. Woods\
 Universities Space Research Association\
 NASA Ames Research Center
@@ -94,7 +94,7 @@ NASA Ames Research Center
 ---
 
 > "Use an algorithm, go to jail."
->\
+>
 > -- anon., circa 1988, pre-Morris worm era
 
 ----
@@ -134,7 +134,7 @@ environment.
 >   And he shows them pearly white
 >   Just a jackknife has Macheath, dear--
 >   And he keeps it out of sight.
->\
+>
 >   -- Bertolt Brecht, Threepenny Opera
 
 ----------------------------------------------
diff --git a/1990/jaw/jaw.c b/1990/jaw/jaw.c
index 6ab37e147..6bc92e1c4 100644
--- a/1990/jaw/jaw.c
+++ b/1990/jaw/jaw.c
@@ -1,5 +1,5 @@
 #define C char
-#define F X,perror("oops"),1
+#define F X,fprintf(stderr,"oops\n"),1
 #define G getchar()
 #define I ;if(
 #define P putchar
diff --git a/1990/jaw/shark.sh b/1990/jaw/shark.sh
index 72190b1c3..bd0e8b675 100755
--- a/1990/jaw/shark.sh
+++ b/1990/jaw/shark.sh
@@ -11,16 +11,16 @@ for i in "${@?${usage?$0 file...}}";do<"$i"||exit;done
 #
 PATH=$PATH:. a=atob m=unshark z=zcat
 r="rm -f $a $m* $z" v="cc -Wno-implicit-function-declaration -o $z $m.c"
-trap "$r;exit 1" 1 2 13 15
+trap '$r;exit 1' 1 2 13 15
 echo decoding...
-(:|compress|./btoa|$a|$z)2>$m>&2||(sed '1,9s/./#define & /
+(:|compress|./btoa|./$a|./$z)2>$m>&2||(sed '1,9s/./#define & /
 s/@/[w]/g
 s/C/char /g
 s/I/;if(/g
 s/W/;while(/g
 s/Y/%lx /g
 s/}/;}/g'>$m.c<<_&&
-FX,perror("$m bite: resend"),1;
+FX,fprintf(stderr,"$m bite: resend\n"),1;
 GgetC()
 H(w=g())
 K[69001]
@@ -43,5 +43,5 @@ Z,h@=w;n=8;f=Q+e;i=o=HIo<0)X,1;P(i)WH+1){Iw==Q&e){Z;m=n=8;f=QIH<0)X}
 c=wIw>=f)U++=i,w=oWw>=Q)U++=h@,w=t@;P(i=h@)Wp>D+Q)P(*--p)
 I(w=f)<1l<<k)t@=o,h[f++]=i;o=c}X}
 _
-($v)&&ln $z $a)&&$a<<\w>$m-&&$z<$m->$m&&tar xvf $m&&$r
+($v)&&ln -f $z $a)&&./$a<<\w>./$m-&&./$z<./$m->./$m&&tar xvf ./$m&&$r
 Z
diff --git a/1990/jaw/try.sh b/1990/jaw/try.sh
new file mode 100755
index 000000000..a4c337b57
--- /dev/null
+++ b/1990/jaw/try.sh
@@ -0,0 +1,11 @@
+#!/usr/bin/env bash
+
+echo "Running shark.sh:"
+sh shark.sh README.md jaw.c README.md > receive || exit 1
+echo "Done."
+
+echo "Attempting to extract files:"
+
+mkdir -p test
+cd test
+sh ../receive
diff --git a/bugs.md b/bugs.md
index 487c9a485..39ac43dfe 100644
--- a/bugs.md
+++ b/bugs.md
@@ -579,46 +579,11 @@ You are welcome to try and fix it if you can!
 ### Source code: [1990/jaw/jaw.c](1990/jaw/jaw.c)
 ### Information: [1990/jaw/README.md](1990/jaw/README.md)
 
-[Cody Boone Ferguson](/winners.html#Cody_Boone_Ferguson) fixed the scripts to
-work in modern systems. He notes however that the command in the try section,
-the one to test the official C entry, **appears** (the keyword!) to not work
-with macOS, giving:
-
-
-```sh
-$ echo "Quartz glyph jocks vend, fix, BMW." | compress | ./btoa | ./jaw
-oops: Undefined error: 0
-oops: Undefined error: 0
-```
-
-However this is because the entry uses `perror()` and it just so happens that
-the default `errno` of 0 gives that result. For instance if you run the
-following C program under macOS you will get undefined error but if you do it
-under Linux you'll likely get success.
-
-
-```c
-#include <stdio.h>
-#include <errno.h>
-#include <string.h>
-int main()
-{
-    errno = 0;
-    printf("%d, %s\n", errno, strerror(errno));
-}
-```
-
-In fact the condition which is in the `a()` function on line 18 of the entry
-namely:
-
-	I k>16)
-
-is true on both linux and macOS, with `k` being equal to 22!
-
-Should the entry use `perror()`? Perhaps not but we're not sure of its purpose
-so it should stay with this note.
-
-If you want to try and fix this (mis)feature, you are welcome to try.
+It seems like the scripts do not work correctly, where not all files are
+extracted. Some work was done to get them to work some but it does not appear
+that all files can be extracted. For instance in the [try.sh](1990/jaw/try.sh)
+script which Cody added it is supposed to add the README.md file to the archive
+and it did at one point (or so he recalls) but now it doesn't seem to happen.
 
 
 ## 1990 theorem
diff --git a/thanks-for-fixes.md b/thanks-for-fixes.md
index 75dc48cd4..6a3fbed22 100644
--- a/thanks-for-fixes.md
+++ b/thanks-for-fixes.md
@@ -933,9 +933,15 @@ With these improvements the entry looks much more like the original!
 ## [1990/jaw](1990/jaw/jaw.c) ([README.md](1990/jaw/README.md]))
 
 Cody fixed the script to work properly in modern environments (to do with `$PATH`
-not having `.` in it). He notes that with an invocation in the try section will
-with macOS show what appears to be an error message but is actually okay. He
-gives more information in the [bugs.md](/bugs.md) file.
+not having `.` in it). Other adjustments were made as well.
+
+He also changed the `perror(3)` call to `fprintf(3)` because in macOS when errno
+is 0 it shows what looks like an error.
+
+He added the [try.sh](1990/jaw/try.sh) to run the commands that we suggested at
+the time. However, there is a known bug still, see [bugs.md](bugs.md) for
+details.
+
 
 NOTE: as `btoa` is not common we used a ruby script from Yusuke.