diff --git a/go.mod b/go.mod
index e8dd8b0..8d5edd3 100644
--- a/go.mod
+++ b/go.mod
@@ -2,4 +2,4 @@ module github.com/surdeus/goblin
 
 go 1.18
 
-require github.com/surdeus/gomtool v0.0.0-20230216120523-b00a31dd9887 // indirect
+require github.com/surdeus/gomtool v0.0.0-20230324073313-c382bc403f8b // indirect
diff --git a/go.sum b/go.sum
index 17b2af0..c1da825 100644
--- a/go.sum
+++ b/go.sum
@@ -8,3 +8,9 @@ github.com/surdeus/gomtool v0.0.0-20221123071619-d67de6873631 h1:dSnG4J2jusYRVnR
 github.com/surdeus/gomtool v0.0.0-20221123071619-d67de6873631/go.mod h1:48d4QXOu0MwH0fbqseBInNdS6WiJ0+EzZU9K5sGu4uo=
 github.com/surdeus/gomtool v0.0.0-20230216120523-b00a31dd9887 h1:lKe6TayY2qB50RqPYrHBlHPeJPevNViM+UQn8/2jBxc=
 github.com/surdeus/gomtool v0.0.0-20230216120523-b00a31dd9887/go.mod h1:48d4QXOu0MwH0fbqseBInNdS6WiJ0+EzZU9K5sGu4uo=
+github.com/surdeus/gomtool v0.0.0-20230324065513-d8d05cb8077d h1:COfpUMABa+RrsD05bOnXDx9FX+oaJ+dnKiLpqOODxl8=
+github.com/surdeus/gomtool v0.0.0-20230324065513-d8d05cb8077d/go.mod h1:48d4QXOu0MwH0fbqseBInNdS6WiJ0+EzZU9K5sGu4uo=
+github.com/surdeus/gomtool v0.0.0-20230324070550-2fb327b6a6a6 h1:aOXHUmhQS/mCo8r72dERsxAnYrlk/hP61BAyZ79MkDs=
+github.com/surdeus/gomtool v0.0.0-20230324070550-2fb327b6a6a6/go.mod h1:48d4QXOu0MwH0fbqseBInNdS6WiJ0+EzZU9K5sGu4uo=
+github.com/surdeus/gomtool v0.0.0-20230324073313-c382bc403f8b h1:9IJVeXxRDTPlp12DQ8M76ydoyDCUx6J4up5UM2DwIXQ=
+github.com/surdeus/gomtool v0.0.0-20230324073313-c382bc403f8b/go.mod h1:48d4QXOu0MwH0fbqseBInNdS6WiJ0+EzZU9K5sGu4uo=
diff --git a/src/cmd/goblin/main.go b/src/cmd/goblin/main.go
index 9071aeb..ac874d0 100644
--- a/src/cmd/goblin/main.go
+++ b/src/cmd/goblin/main.go
@@ -30,48 +30,51 @@ import (
 	"github.com/surdeus/goblin/src/tool/wc"
 	"github.com/surdeus/goblin/src/tool/whoami"
 	"github.com/surdeus/goblin/src/tool/yes"
-	mtool "github.com/surdeus/gomtool/src/multitool"
+	"github.com/surdeus/gomtool/src/mtool"
 )
 
 func main() {
 	tools := mtool.Tools{
-		"basename": mtool.Tool{basename.Run, "get base name of file path"},
-		"cat":      mtool.Tool{cat.Run, "print file data to the standard output"},
-		"mkdir":    mtool.Tool{mkdir.Run, "make new directory"},
-		"echo":     mtool.Tool{echo.Run, "print strings to the standard output"},
-		"true":     mtool.Tool{gtrue.Run, "exit with true status"},
-		"false":    mtool.Tool{gfalse.Run, "exit with false status"},
-		"sort":     mtool.Tool{sort.Run, "sort strings inputed from standard input"},
-		"tac":      mtool.Tool{tac.Run, "print strings from standard input in reversed order"},
-		"ls":       mtool.Tool{ls.Run, "list directory content"},
-		"yes":      mtool.Tool{yes.Run, "print string infinite/exact amount times"},
-		"date":     mtool.Tool{date.Run, "print current date"},
-		"uniq":     mtool.Tool{uniq.Run, "filter repeated strings"},
-		"quote":    mtool.Tool{quote.Run, "quote words containing space characters"},
-		"urlprs":   mtool.Tool{urlprs.Run, "parse URLs"},
-		"noext":    mtool.Tool{noext.Run, "print file path without extension"},
-		"mergelbl": mtool.Tool{mergelbl.Run, "merge line by line"},
-		"ec":       mtool.Tool{ec.Run, "render escape sequences"},
-		"read":     mtool.Tool{read.Run, "read lines and exit"},
-		"wc":       mtool.Tool{wc.Run, "count words, bytes, runes etc"},
-		"ftest":    mtool.Tool{ftest.Run, "filter files by specified features"},
-		"range":    mtool.Tool{grange.Run, "too lazy"},
-		"in":       mtool.Tool{in.Run, "filter strings from stdin that aren not in arguments"},
-		"useprog":  mtool.Tool{useprog.Run, "print the name of the first existing program in arg list"},
-		"path":     mtool.Tool{path.Run, "print cross platform path based on cmd arguments"},
-		"mk":       mtool.Tool{mk.Run, "file dependency system, simpler make"},
-		"awk":      mtool.Tool{awk.Run, "simple scripting language for working with string templates"},
+		"basename": mtool.Tool{basename.Run, "get base name of file path", ""},
+		"cat":      mtool.Tool{cat.Run, "print file data to the standard output", ""},
+		"mkdir":    mtool.Tool{mkdir.Run, "make new directory", ""},
+		"echo":     mtool.Tool{echo.Run, "print strings to the standard output", ""},
+		"true":     mtool.Tool{gtrue.Run, "exit with true status", ""},
+		"false":    mtool.Tool{gfalse.Run, "exit with false status", ""},
+		"sort":     mtool.Tool{sort.Run, "sort strings inputed from standard input", ""},
+		"tac":      mtool.Tool{tac.Run, "print strings from standard input in reversed order", ""},
+		"ls":       mtool.Tool{ls.Run, "list directory content", ""},
+		"yes":      mtool.Tool{yes.Run, "print string infinite/exact amount times", ""},
+		"date":     mtool.Tool{date.Run, "print current date", ""},
+		"uniq":     mtool.Tool{uniq.Run, "filter repeated strings", ""},
+		"quote":    mtool.Tool{quote.Run, "quote words containing space characters", ""},
+		"urlprs":   mtool.Tool{urlprs.Run, "parse URLs", ""},
+		"noext":    mtool.Tool{noext.Run, "print file path without extension", ""},
+		"mergelbl": mtool.Tool{mergelbl.Run, "merge line by line", ""},
+		"ec":       mtool.Tool{ec.Run, "render escape sequences", ""},
+		"read":     mtool.Tool{read.Run, "read lines and exit", ""},
+		"wc":       mtool.Tool{wc.Run, "count words, bytes, runes etc", ""},
+		"ftest":    mtool.Tool{ftest.Run, "filter files by specified features", ""},
+		"range":    mtool.Tool{grange.Run, "too lazy", ""},
+		"in":       mtool.Tool{in.Run, "filter strings from stdin that aren not in arguments", ""},
+		"useprog":  mtool.Tool{useprog.Run, "print the name of the first existing program in arg list", ""},
+		"path":     mtool.Tool{path.Run, "print cross platform path based on cmd arguments", ""},
+		"mk":       mtool.Tool{mk.Run, "file dependency system, simpler make", ""},
+		"awk":      mtool.Tool{awk.Run, "simple scripting language for working with string templates", ""},
 		"paths": mtool.Tool{
 			paths.Run,
 			"convert UNIX slash separated paths into the OS compatible ones",
+			"",
 		},
 		"whoami": mtool.Tool{
 			whoami.Run,
 			"print current user name",
+			"",
 		},
 		"ln": mtool.Tool{
 			ln.Run,
 			"link files",
+			"",
 		},
 	}
 
diff --git a/src/tool/basename/run.go b/src/tool/basename/run.go
index 4348286..f6b0bbb 100644
--- a/src/tool/basename/run.go
+++ b/src/tool/basename/run.go
@@ -3,9 +3,8 @@ package basename
 
 import(
 	"fmt"
-	"flag"
-	"os"
 	"path"
+	"github.com/surdeus/gomtool/src/mtool"
 )
 
 var(
@@ -18,16 +17,9 @@ func Base(p string) string {
 	return path.Base(p)
 }
 
-func Run(argv []string) {
-	arg0 = argv[0]
-	args = argv[1:]
-	flagSet := flag.NewFlagSet(arg0, flag.ExitOnError)
-	flagSet.Usage = func() {
-		fmt.Fprintf(os.Stderr, "usage: %s [files]\n", arg0, arg0)
-		flagSet.PrintDefaults()
-	}
-	flagSet.Parse(args)
-	args = flagSet.Args()
+func Run(flags *mtool.Flags) {
+	flags.Parse()
+	args := flags.Args()
 
 	lasti := len(args) - 1
 	for i, v := range args {
diff --git a/src/tool/cat/cat.go b/src/tool/cat/cat.go
index 6c87253..eb525b9 100644
--- a/src/tool/cat/cat.go
+++ b/src/tool/cat/cat.go
@@ -3,8 +3,8 @@ package cat
 import(
 	"os"
 	"io"
-	"flag"
 	"fmt"
+	"github.com/surdeus/gomtool/src/mtool"
 )
 
 var(
@@ -37,22 +37,15 @@ func fcat(f *os.File) error {
 	return nil
 }
 
-func Run(args []string) {	
-	arg0 := args[0]
-	args = args[1:]
-	flagSet := flag.NewFlagSet(arg0, flag.ExitOnError)
-	flagSet.IntVar(&blockSize, "bs", 512, "block size")
-	flagSet.Usage = func() {
-		fmt.Fprintf(os.Stderr, "usage: %s [options] [files]\n", arg0)
-		flagSet.PrintDefaults()
-	}
-	flagSet.Parse(args)
-	args = flagSet.Args()
+func Run(flags *mtool.Flags) {	
+	flags.IntVar(&blockSize, "bs", 512, "block size")
+	flags.Parse()
+	args := flags.Args()
 	if len(args)>0 {
 		for _, p := range args {
 			e := Cat(p)
 			if e != nil {
-				fmt.Fprintf(os.Stderr, "%s: %s.\n", arg0, e)
+				fmt.Fprintf(os.Stderr, "%s.\n", e)
 			}
 		}
 	} else {
diff --git a/src/tool/date/date.go b/src/tool/date/date.go
index a3a5601..4c8b649 100644
--- a/src/tool/date/date.go
+++ b/src/tool/date/date.go
@@ -1,25 +1,17 @@
 package date
 
 import(
-	"os"
-	"flag"
 	"fmt"
 	"time"
+	"github.com/surdeus/gomtool/src/mtool"
 )
 
-func Run(args []string) {
-	arg0 := args[0]
-	args = args[1:]
-	flagSet := flag.NewFlagSet(arg0, flag.ExitOnError)
-	flagSet.Usage = func() {
-		fmt.Fprintf(os.Stderr, "Usage of %s: %s\n", arg0, arg0)
-		flagSet.PrintDefaults()
-	}
-	flagSet.Parse(args)
+func Run(flagSet *mtool.Flags) {
+	flagSet.Parse()
+	args := flagSet.Args()
 
-	if len(flagSet.Args())>0 {
+	if len(args) > 0 {
 		flagSet.Usage()
-		os.Exit(1)
 	}
 	
 	date := time.Now()
diff --git a/src/tool/ec/run.go b/src/tool/ec/run.go
index 802b39e..38f869d 100644
--- a/src/tool/ec/run.go
+++ b/src/tool/ec/run.go
@@ -6,6 +6,7 @@ import(
 	"os"
 	"bufio"
 	"log"
+	"github.com/surdeus/gomtool/src/mtool"
 )
 
 const(
@@ -31,7 +32,7 @@ handleEscChar(rd *bufio.Reader) error {
 }
 
 func
-Run(args []string) {
+Run(flags *mtool.Flags) {
 	rd := bufio.NewReader(os.Stdin)
 	for {
 		r, _, e := rd.ReadRune()
diff --git a/src/tool/echo/echo.go b/src/tool/echo/echo.go
index b8a3979..5bf7704 100644
--- a/src/tool/echo/echo.go
+++ b/src/tool/echo/echo.go
@@ -3,7 +3,7 @@ package echo
 
 import (
 	"fmt"
-	"flag"
+	"github.com/surdeus/gomtool/src/mtool"
 )
 
 var(
@@ -11,13 +11,15 @@ var(
 	eol = "\n"
 )
 
-func Run(args []string) {
+func Run(flagSet *mtool.Flags) {
 	var nflag bool
-	flagSet := flag.NewFlagSet(args[0], flag.ExitOnError)
+	
 	flagSet.BoolVar(&nflag, "n", false, "Do not print new line character.")
 	flagSet.StringVar(&del, "d", " ", "Delimiter of arguments")
-	flagSet.Parse(args[1:])
-	args = flagSet.Args()
+	
+	flagSet.Parse()
+	args := flagSet.Args()
+	
 	l := len(args) - 1
 	for i, s := range args {
 		fmt.Print(s)
diff --git a/src/tool/gfalse/false.go b/src/tool/gfalse/false.go
index bf1069a..ba9d279 100644
--- a/src/tool/gfalse/false.go
+++ b/src/tool/gfalse/false.go
@@ -1,4 +1,10 @@
 package gfalse
 
-func Run(args []string) {
+import(
+	"os"
+	"github.com/surdeus/gomtool/src/mtool"
+)
+
+func Run(flags *mtool.Flags) {
+	os.Exit(1)
 }
diff --git a/src/tool/gtrue/true.go b/src/tool/gtrue/true.go
index 5b7f30c..cf6c67d 100644
--- a/src/tool/gtrue/true.go
+++ b/src/tool/gtrue/true.go
@@ -1,5 +1,5 @@
 package gtrue
 
-func Run(args []string) {
-}
+import "github.com/surdeus/gomtool/src/mtool"
 
+func Run(flags *mtool.Flags) {}
diff --git a/src/tool/ls/ls.go b/src/tool/ls/ls.go
index fd6d79d..aa674c5 100644
--- a/src/tool/ls/ls.go
+++ b/src/tool/ls/ls.go
@@ -2,17 +2,15 @@ package ls
 import(
 	"os"
 	"fmt"
-	"flag"
 	"strings"
 	"regexp"
 	"path"
+	"github.com/surdeus/gomtool/src/mtool"
 )
 
 var(
 	listHidden bool
 	args []string
-	arg0 string
-	flagSet *flag.FlagSet
 )
 
 var slashRegexp = regexp.MustCompile("/+")
@@ -126,30 +124,25 @@ ls(p string, fold int) error {
 	return nil
 }
 
-func Run(argv []string) {
-	arg0 = argv[0]
-	args = argv[1:]
-	flagSet = flag.NewFlagSet(arg0, flag.ExitOnError)
+func Run(flagSet *mtool.Flags) {
 	var foldLvl int
 	flagSet.IntVar(&foldLvl, "r", 1, "List recursively with choosing deepness, can't be negative or zero.")
 	flagSet.BoolVar(&listHidden, "a", false, "List hidden files.")
-	flagSet.Parse(args)
+	flagSet.Parse()
 	args = flagSet.Args()
 
 	if foldLvl<0 {
 		flagSet.Usage()
-		os.Exit(1)
 	}
 
 	if foldLvl==0 && len(args)==0 {
 		flagSet.Usage()
-		os.Exit(1)
 	}
 	
 	if len(args) == 0 {
 		foldLvl -= 1
 		if l, e := ReadDir(".") ; e != nil {
-			fmt.Fprintf(os.Stderr, "%s: %s.\n", arg0, e)
+			fmt.Fprintf(os.Stderr, "%s.\n", e)
 		} else {
 			for _, f := range l {
 				if !shouldList(f.Name()) {
@@ -162,8 +155,7 @@ func Run(argv []string) {
 					e := ls(f.Name(), foldLvl)
 					if e!=nil {
 						fmt.Fprintf(os.Stderr,
-							"%s: %s\n",
-							arg0, e)
+							"%s\n", e)
 					}
 				}
 			}
@@ -172,7 +164,7 @@ func Run(argv []string) {
 		for _, p := range args {
 			e := ls(p, foldLvl)
 			if e != nil {
-				fmt.Fprintf(os.Stderr, "%s: %s\n", arg0, e)
+				fmt.Fprintf(os.Stderr, "%s\n", e)
 			}
 			
 		}
diff --git a/src/tool/mergelbl/main.go b/src/tool/mergelbl/main.go
index b5d6508..3170933 100644
--- a/src/tool/mergelbl/main.go
+++ b/src/tool/mergelbl/main.go
@@ -4,11 +4,11 @@ import(
 	"os"
 	"fmt"
 	"bufio"
-	"flag"
 	"log"
+	"github.com/surdeus/gomtool/src/mtool"
 )
 
-func Run(args []string) {
+func Run(flagSet *mtool.Flags) {
 	var(
 		e error
 		buf string
@@ -16,15 +16,8 @@ func Run(args []string) {
 	rsep := '\n'
 	wsep := "\n"
 	//del := ""
-	arg0 := args[0]
-	args = args[1:]
-	flagSet := flag.NewFlagSet(arg0, flag.ExitOnError)
-	flagSet.Usage = func() {
-		fmt.Fprintf(os.Stderr, "usage: %s <file1> <file2> .. [fileN]\n", arg0)
-		flagSet.PrintDefaults()
-	}
-	flagSet.Parse(args)
-	args = flagSet.Args()
+	flagSet.Parse()
+	args := flagSet.Args()
 
 	files := make([]*os.File, len(args))
 	for i, v := range args {
diff --git a/src/tool/mkdir/mkdir.go b/src/tool/mkdir/mkdir.go
index 217048f..ec47b77 100644
--- a/src/tool/mkdir/mkdir.go
+++ b/src/tool/mkdir/mkdir.go
@@ -1,29 +1,22 @@
 package mkdir
 
 import (
-	"flag"
 	"fmt"
 	"os"
 
 	"github.com/surdeus/goblin/src/pathx"
+	"github.com/surdeus/gomtool/src/mtool"
 )
 
-func Run(args []string) {
-	arg0 := args[0]
-	args = args[1:]
+func Run(flagSet *mtool.Flags) {
 	var (
 		parentFlag bool
 		modeArg    int
 	)
-	flagSet := flag.NewFlagSet(arg0, flag.ExitOnError)
 	flagSet.BoolVar(&parentFlag, "p", false, "No error if existing, make parent as needed.")
 	flagSet.IntVar(&modeArg, "m", 0766, "Set file `mode`.")
-	flagSet.Usage = func() {
-		fmt.Fprintf(os.Stderr, "Usage of %s: %s [options] [files]\n", arg0, arg0)
-		flagSet.PrintDefaults()
-	}
-	flagSet.Parse(args)
-	args = flagSet.Args()
+	flagSet.Parse()
+	args := flagSet.Args()
 	if len(args) == 0 {
 		flagSet.Usage()
 		os.Exit(1)
@@ -38,7 +31,7 @@ func Run(args []string) {
 			e = os.Mkdir(pth, mode)
 		}
 		if e != nil {
-			fmt.Fprintf(os.Stderr, "%s: %s.\n", arg0, e)
+			fmt.Fprintf(os.Stderr, "%s\n", e)
 		}
 	}
 }
diff --git a/src/tool/noext/noext.go b/src/tool/noext/noext.go
index dd67104..9633694 100644
--- a/src/tool/noext/noext.go
+++ b/src/tool/noext/noext.go
@@ -3,8 +3,7 @@ package noext
 
 import(
 	"fmt"
-	"flag"
-	"os"
+	"github.com/surdeus/gomtool/src/mtool"
 )
 
 var(
@@ -25,15 +24,9 @@ func NoExt(p string) string {
 	return p[:i]
 }
 
-func Run(argv []string) {
-	arg0 = argv[0]
-	args = argv[1:]
-	flagSet := flag.NewFlagSet(arg0, flag.ExitOnError)
-	flagSet.Usage = func() {
-		fmt.Fprintf(os.Stderr, "usage: %s [files]\n", arg0, arg0)
-		flagSet.PrintDefaults()
-	}
-	flagSet.Parse(args)
-	args = flagSet.Args()
+func Run(flagSet *mtool.Flags) {
+	flagSet.Parse()
+	args := flagSet.Args()
+	if len(args) < 1 { flagSet.Usage() }
 	fmt.Printf("%s", NoExt(args[0]))
 }
diff --git a/src/tool/quote/quote.go b/src/tool/quote/quote.go
index 6910eae..f61a65f 100644
--- a/src/tool/quote/quote.go
+++ b/src/tool/quote/quote.go
@@ -4,10 +4,10 @@ package quote
 import(
 	"os"
 	"io"
-	"flag"
 	"fmt"
 	"unicode"
 	"bufio"
+	"github.com/surdeus/gomtool/src/mtool"
 )
 
 func HasWhiteSpace(s string) bool {
@@ -19,16 +19,8 @@ func HasWhiteSpace(s string) bool {
 	return false
 }
 
-func Run(args []string) {	
-	arg0 := args[0]
-	args = args[1:]
-	flagSet := flag.NewFlagSet(arg0, flag.ExitOnError)
-	flagSet.Usage = func() {
-		fmt.Fprintf(os.Stderr, "Usage of %s: %s\n", arg0, arg0)
-		flagSet.PrintDefaults()
-	}
-	flagSet.Parse(args)
-	args = flagSet.Args()
+func Run(flagSet *mtool.Flags) {	
+	flagSet.Parse()
 
 	r := bufio.NewReader(os.Stdin)
 	for{
diff --git a/src/tool/read/main.go b/src/tool/read/main.go
index 6955268..dcdb1f3 100644
--- a/src/tool/read/main.go
+++ b/src/tool/read/main.go
@@ -3,26 +3,18 @@ package read
 import(
 	"os"
 	"bufio"
-	"flag"
 	"fmt"
+	"github.com/surdeus/gomtool/src/mtool"
 )
 
 var(
 	nLines int
 )
 
-func Run(args []string) {	
-	arg0 := args[0]
-	args = args[1:]
-	flagSet := flag.NewFlagSet(arg0, flag.ExitOnError)
+func Run(flagSet *mtool.Flags) {	
 	flagSet.IntVar(&nLines, "n", 1, "amount of lines")
-	flagSet.Usage = func() {
-		fmt.Fprintf(os.Stderr, "usage: %s [options] [files]\n", arg0)
-		flagSet.PrintDefaults()
-		os.Exit(1)
-	}
-	flagSet.Parse(args)
-	args = flagSet.Args()
+	flagSet.Parse()
+	//args := flagSet.Args()
 
 	if nLines <= 0 {
 		flagSet.Usage()
diff --git a/src/tool/sort/sort.go b/src/tool/sort/sort.go
index dc92c4c..228acf0 100644
--- a/src/tool/sort/sort.go
+++ b/src/tool/sort/sort.go
@@ -4,14 +4,11 @@ import (
 	"fmt"
 	"os"
 	"sort"
-	"flag"
 	"github.com/surdeus/goblin/src/input"
+	"github.com/surdeus/gomtool/src/mtool"
 )
 
-func Run(args []string) {
-	flagSet := flag.NewFlagSet(args[0], flag.ExitOnError)	
-	flagSet.Parse(args[1:])
-
+func Run(flagSet *mtool.Flags) {
 	lines, _ := input.ReadAllLines(os.Stdin)
 	sort.Strings(lines)
 	for _, l := range lines {
diff --git a/src/tool/tac/tac.go b/src/tool/tac/tac.go
index 2ca431d..b1108db 100644
--- a/src/tool/tac/tac.go
+++ b/src/tool/tac/tac.go
@@ -3,9 +3,9 @@ package tac
 import(
 	"os"
 	"io"
-	"flag"
 	"fmt"
 	"bufio"
+	"github.com/surdeus/gomtool/src/mtool"
 )
 
 func reverse(a []string) chan string {
@@ -47,21 +47,14 @@ func ftac(f *os.File) error {
 	return nil
 }
 
-func Run(args []string) {	
-	arg0 := args[0]
-	args = args[1:]
-	flagSet := flag.NewFlagSet(arg0, flag.ExitOnError)
-	flagSet.Usage = func () {
-		fmt.Fprintf(os.Stderr, "Usage of %s: %s [files]\n", arg0, arg0)
-		flagSet.PrintDefaults()
-	}
-	flagSet.Parse(args)
-	args = flagSet.Args()
+func Run(flagSet *mtool.Flags) {	
+	flagSet.Parse()
+	args := flagSet.Args()
 	if len(args)>0 {
 		for _, p := range args {
 			e := tac(p)
 			if e != nil {
-				fmt.Fprintf(os.Stderr, "%s: %s.\n", arg0, e)
+				fmt.Fprintf(os.Stderr, "%s.\n", e)
 			}
 		}
 	} else {
diff --git a/src/tool/uniq/uniq.go b/src/tool/uniq/uniq.go
index 682f06f..eb14f91 100644
--- a/src/tool/uniq/uniq.go
+++ b/src/tool/uniq/uniq.go
@@ -4,25 +4,18 @@ package uniq
 import(
 	"os"
 	"fmt"
-	"flag"
 	"bufio"
 	"io"
+	"github.com/surdeus/gomtool/src/mtool"
 )
 
-func Run(args []string) {
+func Run(flagSet *mtool.Flags) {
 	var(
 		Uflag bool
 	)
-	arg0 := args[0]
-	args = args[1:]
-	flagSet := flag.NewFlagSet(arg0, flag.ExitOnError)
 	flagSet.BoolVar(&Uflag, "U", false, "Print every line just one time.")
-	flagSet.Usage = func() {
-		fmt.Fprintf(os.Stderr, "Usage of %s: %s [options] [string]\n", arg0, arg0)
-		flagSet.PrintDefaults()
-	}
-	flagSet.Parse(args)
-	args = flagSet.Args()
+	flagSet.Parse()
+	//args := flagSet.Args()
 
 	r := bufio.NewReader(os.Stdin)
 	u := make(map[string]int)
diff --git a/src/tool/urlprs/urlprs.go b/src/tool/urlprs/urlprs.go
index dbece0f..10e8334 100644
--- a/src/tool/urlprs/urlprs.go
+++ b/src/tool/urlprs/urlprs.go
@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"net"
 	"net/url"
+	"github.com/surdeus/gomtool/src/mtool"
 )
 
 var nilStr = "_"
@@ -16,10 +17,13 @@ func printNil(s string) {
 		fmt.Println(nilStr)
 	}
 }
-func Run(args []string) {
+func Run(flags *mtool.Flags) {
 	nilStr = "_"
 
-	s := args[1]
+	flags.Parse()
+	args := flags.Args()
+	if len(args) < 1 { flags.Usage() }
+	s := args[0]
 
 	u, err := url.Parse(s)
 	if err != nil {
diff --git a/src/tool/wc/main.go b/src/tool/wc/main.go
index ea8f9af..3ddbf2d 100644
--- a/src/tool/wc/main.go
+++ b/src/tool/wc/main.go
@@ -6,8 +6,8 @@ import (
 	"bufio"
 	"fmt"
 	"unicode"
-	"flag"
 	"strconv"
+	"github.com/surdeus/gomtool/src/mtool"
 )
 
 var (
@@ -46,21 +46,17 @@ func finish() {
 	os.Exit(0)
 }
 
-func Run(args []string) {
+func Run(flagSet *mtool.Flags) {
 	var (
 		r rune
 		siz int
 	)
-	arg0 := args[0]
-	args = args[1:]
-	flagSet := flag.NewFlagSet(arg0, flag.ExitOnError)
-
 	flagSet.BoolVar(&flags[charsFlag], "c", false, "print amount of chars(bytes)")
 	flagSet.BoolVar(&flags[runesFlag], "r", false, "print amount of runes in UTF stream")
 	flagSet.BoolVar(&flags[wordsFlag], "w", false, "print amount of words")
 	flagSet.BoolVar(&flags[linesFlag], "l", false, "print amount of lines")
 
-	flagSet.Parse(args)
+	flagSet.Parse()
 
 	for i, v := range flags {
 		if v {
diff --git a/src/tool/yes/yes.go b/src/tool/yes/yes.go
index 9573cac..85844a7 100644
--- a/src/tool/yes/yes.go
+++ b/src/tool/yes/yes.go
@@ -4,9 +4,9 @@ package yes
 import(
 	"os"
 	"fmt"
-	"flag"
 	"strings"
 	"github.com/surdeus/goblin/src/input"
+	"github.com/surdeus/gomtool/src/mtool"
 )
 var(
 	nArg int
@@ -24,24 +24,18 @@ func yes(s string){
 	}
 }
 
-func Run(args []string) {
+func Run(flagSet *mtool.Flags) {
 	var(
 		stdinFlag bool
 		nFlag bool
 		s string
 	)
-	arg0 := args[0]
-	args = args[1:]
-	flagSet := flag.NewFlagSet(arg0, flag.ExitOnError)
 	flagSet.BoolVar(&stdinFlag, "s", false, "Read string from stdin.")
 	flagSet.BoolVar(&nFlag, "n", false, "Do not add net line character.")
 	flagSet.IntVar(&nArg, "N", -1, "Repeat input N times. Negative value means infinite cycle.")
-	flagSet.Usage = func() {
-		fmt.Fprintf(os.Stderr, "Usage of %s: %s [options] [string]\n", arg0, arg0)
-		flagSet.PrintDefaults()
-	}
-	flagSet.Parse(args)
-	args = flagSet.Args()
+	
+	flagSet.Parse()
+	args := flagSet.Args()
 
 	if stdinFlag {
 		in, _ := input.ReadAllRaw(os.Stdin)