Path Tools

globlines

#!/bin/sh

pipe=cat;

ifilter=./ifilter; [ -e "$ifilter" ] || ifilter=ifilter;

if [ "${1:0:1}" == '-' ]; then
	pipe="$ifilter $1";
	shift;
fi;

{ if [ $# -gt 0 ]; then
printf "%s\n" "$@";
else while read globline; do ( IFS='';
printf "%s\n" $globline;
); done; fi; } | $pipe;

ifilter

#!/bin/sh

bang=;

if [ "$1" == '--not' ]; then shift; bang=!; fi;

if [ $# == 2 ]; then
	while read line; do
		test $bang "$1" "$2" "$line" && printf "%s\n" "$line";
	done
else
	while read line; do
		test $bang "$1" "$line" && printf "%s\n" "$line";
	done
fi;

# Run a test on line inputs with optional inversion, printing line if tests true

install

#!/bin/sh

HOST=https://gist.github.com/

VENDOR=hypersoft
GIST=8811532

NAME="Path Tools"
COPYRIGHT="(C) 2014 Triston J. Taylor All Rights Reserved."

DEST="${DEST:=/usr/local/bin}";

SOURCES="
globlines
ifilter
iprefix
irep
isuffix
subdirs
"

PROVIDES="$(printf "${DEST}/%s\n" $SOURCES)"

OUTDATED="$(for name in $SOURCES; do
	target="${DEST}/$name";
	[ "$name" -nt "$target" ] && printf "%s\n" "$name";
done)"

REMOVE="$(for name in $PROVIDES; do
	[ -e "$name" ] && printf "%s\n" "$name";
done)"

while [ "${1:0:1}" == - ]; do
	[ "$1" == '--list-provides' ] && {
		[ -n "$PROVIDES" ] && printf "%s\n" $PROVIDES;
		exit $?;
	} || [ "$1" == '--list-installed' ] && {
		[ -n "$REMOVE" ] && printf "%s\n" $REMOVE;
		exit $?;
	} || [ "$1" == '--list-outdated' ] && {
		[ -n "$OUTDATED" ] && printf "$DEST/%s\n" $OUTDATED;
		exit $?;
	} || [ "$1" == '--remove' ] && {
		[ -n "$REMOVE" ] && {
			if [ -w "$DEST" ]; then rm -v $REMOVE;
			else
				echo -n "Permission to write $DEST " >&2;
				su root -c "rm -v $(printf "'%s' " $REMOVE)";
			fi;
			exit $?;
		}
	}
	break;
done;

[ -n "$OUTDATED" ] && {
	UPDATE="cp -v $(IFS=$'\n'; printf "'%s' " $OUTDATED) '$DEST'"
	if [ -w "$DEST" ]; then "$UPDATE";
	else
		echo -n "Permission to write $DEST " >&2;
		su root -c "$UPDATE";
	fi;
} || {
	printf "Everything up to date\n" >&2;
}

iprefix

#!/bin/sh

#inline prefix
sed -re "$(printf 's\1^(.+)$\1';
printf '%s\\1\\n' "$@";
printf '\1')";

irep

#!/bin/sh

argv='-e';

if [ "$1" == -r ]; then
argv="-re"; shift;
fi;

expr=\'s\1$1\1$2\1\';

#inline replace optional extended regular expression
eval "sed $argv $expr";

isuffix

#!/bin/sh

#inline suffix
sed -re "$(printf 's\1^(.+)$\1';
printf '\\1%s\\n' "$@";
printf '\1')";

subdirs

#!/bin/sh

# recursive tree list
while test $# != 0; do
	test "$1" == "*" && {
		shift; continue;
	}
	test "$1" == "./" && { 
		"$0" "$1"*;
		shift; continue;
	} 
	test "$1" == "." && { 
		"$0" "$1"/*;
		shift; continue;
	}
	test -d "$1" && {
		printf "%s\n" "$1" && "$0" "$1"/*;
	}
	shift;
done;

To clone this project to your local machine:

git clone https://gist.github.com/hypersoft/8811532
cd 8811532

Perform an install to /usr/local/bin
./configure

Find all path subdirectories

subdirs .

Create a shell glob list for *.c and *.h files

./subdirs * | ./isuffix '/*.'{c,h}

Find all *.c and *.h files

./subdirs * | ./isuffix '/*.'{c,h} | ./globlines -e

Building on the example above, you could then do something exotic like testing if files are older or newer using
... | ifilter "reference-file.example" -o

All *.c files as *.o files
$ ./subdirs * | ./isuffix '/*.c' | ./globlines -e | ./irep -r '.c$' '.o'

As above. This time, specify an output directory for ALL *.o files
./subdirs * | ./isuffix '/*.c' | ./globlines -e | ./irep -r '.c$' '.o' | ./irep -r '([^/])+' 'output'