1 files changed, 52 insertions, 0 deletions
diff --git a/os1w5/textfrutter.sh b/os1w5/textfrutter.sh
new file mode 100755
index 0000000..8c8ffe3
--- /dev/null
+++ b/os1w5/textfrutter.sh
@@ -0,0 +1,52 @@
+#!/bin/dash
+TO_UPPER=""
+TO_LOWER=""
+PREFIX=
+SUFFIX=
+FILTER_VOWELS=""
+ARGC=0
+
+usage() {
+	cat << EOF
+usage: $0 [-luvh] [-p prefix] [-s suffix] [inputs...]
+
+options:
+  -l         convert inputs to lowercase
+  -u         convert inputs to uppercase
+  -v         remove vowels from inputs
+  -h         show help
+  -p prefix  add \`prefix\` to each line before inputs
+  -s suffix  add \`suffix\` to each line after inputs
+
+notes:
+  if -l and -u are specified at the same time, the lowercase option will have
+  precedence
+EOF
+  exit $1
+}
+
+while getopts dulhp:s:v OPT; do
+	[ $OPTIND -gt $ARGC ] && ARGC=$OPTIND
+	case $OPT in
+		u) TO_UPPER="y" ;;
+		l) TO_LOWER="y" ;;
+		h) usage 0 ;;
+		p) PREFIX=$OPTARG ;;
+		s) SUFFIX=$OPTARG ;;
+		v) FILTER_VOWELS="y" ;;
+		\?|*) usage 1 ;;
+	esac
+done
+
+[ $(( $# - $ARGC )) -lt 0 ] && echo "please provide some input" && usage 1
+
+shift $(( ARGC - 1 ))
+
+while [ -n "$1" ]; do
+	OUT="$1"
+	[ -n "$TO_UPPER" ] && OUT="`echo "$OUT" | sed 's/./\U\0/g'`"
+	[ -n "$TO_LOWER" ] && OUT="`echo "$OUT" | sed 's/./\L\0/g'`"
+	[ -n "$FILTER_VOWELS" ] && OUT="`echo "$OUT" | sed 's/[aeuio]//g'`"
+	echo "$PREFIX$OUT$SUFFIX"
+	shift
+done