Fix script in 1990/jaw

Now the files added to the archive will be extracted. It is unfortunate
but a temporary tarball has to be formed rather than writing to stdout.
There is a possible fix to this but it hasn't been looked into yet. The
tarball is temporary, however, and is deleted after it is extracted. The
script MUST be run from a subdirectory of the entry but as the script
had hardcoded the paths before this shouldn't be that big of a deal.

Another problem was more to do with paths and also the script relying on
the exit code allowing for &&. Now it's ';' between most commands.

There still remains, Landon and I believe, a bug in the entry and this
has been added to the bugs.md file; the script not working has been
removed from the bugs.md.

1990/jaw/README.md

@@ -1,22 +1,12 @@
 # Best Entropy-reducer
 
 James A. Woods\
-Research Institute for Advanced Computer Science\
-MS 230-5\
-NASA Ames Research Center\
-Moffett Field, CA 94131\
 US
 
 Karl F. Fox\
-Morning Star Technologies, Inc.\
-1760 Zollinger Road\
-Columbus, OH 43221\
 US
 
 Paul Eggert\
-Twin Sun Inc.\
-360 N. Sepulveda Blvd. #2055\
-El Segundo, CA 90245\
 US
 
 ## To build:
@@ -25,9 +15,6 @@ US
 make all
 ```
 
-NOTE: see the [bugs.md](/bugs.md) file for information on what appears to be a
-bug in macOS but is actually not.
-
 
 ### Bugs and (Mis)features
 

1990/jaw/shark.sh

@@ -1,5 +1,5 @@
 for i in "${@?${usage?$0 file...}}";do<"$i"||exit;done
-(cat&&tar cbf 1 - "$@"|compress|./btoa&&echo w)<<\Z
+(cat&&tar cbf 1 unshark.tar "$@"|compress|./btoa&&echo w)<<\Z
 #!/bin/sh
 #
 # GENTLE READER -- write this message to file [no headers!]; run "sh file".
@@ -9,11 +9,11 @@ for i in "${@?${usage?$0 file...}}";do<"$i"||exit;done
 #
 # "Cleverly he dialed from within." -- D. Van Vliet, "Trout Mask Replica"
 #
-PATH=$PATH:. a=atob m=unshark z=zcat
+PATH=$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
 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
@@ -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 -f $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 ../$m.tar&&$r
 Z

1990/jaw/try.sh

@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 
 echo "Running shark.sh:"
-sh shark.sh README.md jaw.c README.md > receive || exit 1
+sh shark.sh shark.sh README.md jaw.c > receive || exit 1
 echo "Done."
 
 echo "Attempting to extract files:"

thanks-for-fixes.md

@@ -932,16 +932,19 @@ 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 `$PATH`
-not having `.` in it). Other adjustments were made as well.
+Cody fixed the script to work properly in modern environments including paths,
+writing to and extracting from stdout, (to do with `$PATH`
+not having `.` in it) and relying on the exit code in the commands to allow for
+`&& ...`.
 
 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.
+the time.
 
+However, there is a known bug still, see [1990 jaw in
+bugs.md](/bugs.md#1990-jaw) for details.
 
 NOTE: as `btoa` is not common we used a ruby script from Yusuke.