readded udpated scripts directory

scripts/bestcompress

@@ -0,0 +1,69 @@
+#!/bin/bash
+
+# ERROR:  /bin/bash -w is invalid option is the error message here. Unable to find answer to problem at this time.
+# Keeping this file for learning purposes.
+
+# bestcompress--Given a file, tries compressing it with all the available
+# compression tools and keeps the compressed file that's smallest,
+# reporting the result to the user. If -a isn't specified, bestcompress
+# skips compressed files in the input stream.
+
+Z="compress"    gz="gzip"       bz="bzip2"
+Zout="/tmp/bestcompress.$$.Z"
+gzout="/tmp/bestcompress.$$.gz"
+bzout="/tmp/bestcompress.$$.bz"
+skipcompressed=1
+
+if [ "$1" = "-a" ] ; then
+    skipcompressed=0 ; shift
+fi
+
+if [ $# -eq 0 ] ; then
+    echo "Usage: $0 [-a] file or files to optimally compress" >&2
+    exit 1
+fi
+
+trap "/bin/rm -f $Zout $gzout $bzout" EXIT
+
+for name in "$@"
+do
+    if [ ! -f "$name" ] ; then
+        echo "$0: file $name not found. Skipped." >&2
+        continue
+    fi
+
+    if [ "$(echo $name | egrep '(\.Z$|\.gz$|\.bz2$)')" != "" ] ; then
+        if [ $skipcompressed -eq 1 ] ; then
+            echo "Skipped file ${name}: It's already compressed."
+            continue
+        else
+            echo "Warning: Trying to double-compress $name"
+        fi
+    fi
+
+    # Try compressing all three files in parallel.
+    $Z < "$name" > $Zout &
+    $gz < "$name" > $gzout &
+    $bz < "$name" > $bzout &
+
+    wait # Wait until all compressions are done.
+
+    # Figure out which compressed best.
+    smallest="$(ls -l "$name" $Zout $gzout $bzout | \parallel
+        awk '{print $5"="NR}' | sort -n | cut -d= -f2 | head -1)"
+
+    case "$smallest" in
+        1 ) echo "No space savings by compressing $name. Left as is."
+            ;;
+        2 ) echo Best compression is with compress. File renamed ${name}.Zout
+            mv $Zout "${name}.Z" ; rm -f "$name"
+            ;;
+        3 ) echo Best compression is with gzip. File renamed ${name}.gz
+            mv $gzout "${name}.gz" ; rm -f "$name"
+            ;;
+        4 ) echo Best compression is with bzip2. File renamed ${name}.bz2
+            mv $bzout "${name}.bz2" ; rm -f "$name"
+    esac
+done
+
+exit 0