diff --git a/cmd/analysis.go b/cmd/analysis.go
index cab46c2..f2f41e3 100644
--- a/cmd/analysis.go
+++ b/cmd/analysis.go
@@ -14,6 +14,7 @@
 package cmd
 
 import (
+	"github.com/VirusTotal/vt-cli/utils"
 	"regexp"
 
 	"github.com/spf13/cobra"
@@ -49,7 +50,10 @@ func NewAnalysisCmd() *cobra.Command {
 			if err != nil {
 				return err
 			}
-			return p.GetAndPrintObjects("analyses/%s", args, re)
+			return p.GetAndPrintObjects(
+				"analyses/%s",
+				utils.StringReaderFromCmdArgs(args),
+				re)
 		},
 	}
 
diff --git a/cmd/domain.go b/cmd/domain.go
index 8ed5c22..4b2665d 100644
--- a/cmd/domain.go
+++ b/cmd/domain.go
@@ -14,6 +14,7 @@
 package cmd
 
 import (
+	"github.com/VirusTotal/vt-cli/utils"
 	"github.com/spf13/cobra"
 )
 
@@ -46,8 +47,10 @@ func NewDomainCmd() *cobra.Command {
 			if err != nil {
 				return err
 			}
-			p.GetAndPrintObjects("domains/%s", args, nil)
-			return nil
+			return p.GetAndPrintObjects(
+				"domains/%s",
+				utils.StringReaderFromCmdArgs(args),
+				nil)
 		},
 	}
 
diff --git a/cmd/file.go b/cmd/file.go
index ae04266..bbc6e81 100644
--- a/cmd/file.go
+++ b/cmd/file.go
@@ -14,6 +14,7 @@
 package cmd
 
 import (
+	"github.com/VirusTotal/vt-cli/utils"
 	"regexp"
 
 	"github.com/spf13/cobra"
@@ -49,7 +50,10 @@ func NewFileCmd() *cobra.Command {
 			if err != nil {
 				return err
 			}
-			return p.GetAndPrintObjects("files/%s", args, re)
+			return p.GetAndPrintObjects(
+				"files/%s",
+				utils.StringReaderFromCmdArgs(args),
+				re)
 		},
 	}
 
diff --git a/cmd/group.go b/cmd/group.go
index c57119b..f6e8a4e 100644
--- a/cmd/group.go
+++ b/cmd/group.go
@@ -14,6 +14,7 @@
 package cmd
 
 import (
+	"github.com/VirusTotal/vt-cli/utils"
 	"github.com/spf13/cobra"
 )
 
@@ -35,7 +36,10 @@ func NewGroupCmd() *cobra.Command {
 			if err != nil {
 				return err
 			}
-			return p.GetAndPrintObjects("groups/%s", args, nil)
+			return p.GetAndPrintObjects(
+				"groups/%s",
+				utils.StringReaderFromCmdArgs(args),
+				nil)
 		},
 	}
 
diff --git a/cmd/hunting.go b/cmd/hunting.go
index c9f2f68..5392885 100644
--- a/cmd/hunting.go
+++ b/cmd/hunting.go
@@ -17,6 +17,7 @@ import (
 	"bufio"
 	"errors"
 	"fmt"
+	"github.com/VirusTotal/vt-cli/utils"
 	"os"
 	"regexp"
 	"strconv"
@@ -124,7 +125,10 @@ func NewHuntingNotificationCmd() *cobra.Command {
 			if err != nil {
 				return err
 			}
-			return p.GetAndPrintObjects("intelligence/hunting_notifications/%s", args, re)
+			return p.GetAndPrintObjects(
+				"intelligence/hunting_notifications/%s",
+				utils.StringReaderFromCmdArgs(args),
+				re)
 		},
 	}
 
@@ -352,7 +356,10 @@ func NewHuntingRulesetCmd() *cobra.Command {
 			if err != nil {
 				return err
 			}
-			return p.GetAndPrintObjects("intelligence/hunting_rulesets/%s?relationships=owner,editors", args, re)
+			return p.GetAndPrintObjects(
+				"intelligence/hunting_rulesets/%s?relationships=owner,editors",
+				utils.StringReaderFromCmdArgs(args),
+				re)
 		},
 	}
 
diff --git a/cmd/ip.go b/cmd/ip.go
index daff2c2..e28a4d5 100644
--- a/cmd/ip.go
+++ b/cmd/ip.go
@@ -14,6 +14,7 @@
 package cmd
 
 import (
+	"github.com/VirusTotal/vt-cli/utils"
 	"regexp"
 
 	"github.com/spf13/cobra"
@@ -47,7 +48,10 @@ func NewIPCmd() *cobra.Command {
 			if err != nil {
 				return err
 			}
-			return p.GetAndPrintObjects("ip_addresses/%s", args, re)
+			return p.GetAndPrintObjects(
+				"ip_addresses/%s",
+				utils.StringReaderFromCmdArgs(args),
+				re)
 		},
 	}
 
diff --git a/cmd/monitor.go b/cmd/monitor.go
index 3b93c71..8498867 100644
--- a/cmd/monitor.go
+++ b/cmd/monitor.go
@@ -458,7 +458,9 @@ func NewMonitorCmd() *cobra.Command {
 			if err != nil {
 				return err
 			}
-			return p.GetAndPrintObjects("monitor/items/%s", args, re)
+			return p.GetAndPrintObjects("monitor/items/%s",
+				utils.StringReaderFromCmdArgs(args),
+				re)
 		},
 	}
 
diff --git a/cmd/retrohunt.go b/cmd/retrohunt.go
index a15d71a..d1eae80 100644
--- a/cmd/retrohunt.go
+++ b/cmd/retrohunt.go
@@ -15,6 +15,7 @@ package cmd
 
 import (
 	"fmt"
+	"github.com/VirusTotal/vt-cli/utils"
 	"io/ioutil"
 	"os"
 	"regexp"
@@ -324,7 +325,10 @@ func NewRetrohuntCmd() *cobra.Command {
 			if err != nil {
 				return err
 			}
-			return p.GetAndPrintObjects("intelligence/retrohunt_jobs/%s", args, re)
+			return p.GetAndPrintObjects(
+				"intelligence/retrohunt_jobs/%s",
+				utils.StringReaderFromCmdArgs(args),
+				re)
 		},
 	}
 
diff --git a/cmd/url.go b/cmd/url.go
index 6b76a8f..cdafe01 100644
--- a/cmd/url.go
+++ b/cmd/url.go
@@ -15,7 +15,7 @@ package cmd
 
 import (
 	"encoding/base64"
-
+	"github.com/VirusTotal/vt-cli/utils"
 	"github.com/spf13/cobra"
 )
 
@@ -48,11 +48,12 @@ func NewURLCmd() *cobra.Command {
 			if err != nil {
 				return err
 			}
-			ids := make([]string, len(args))
-			for i, arg := range args {
-				ids[i] = base64.RawURLEncoding.EncodeToString([]byte(arg))
-			}
-			return p.GetAndPrintObjects("urls/%s", ids, nil)
+			r := utils.NewMappedStringReader(
+				utils.StringReaderFromCmdArgs(args),
+				func (url string) string {
+					return base64.RawURLEncoding.EncodeToString([]byte(url))
+				})
+			return p.GetAndPrintObjects("urls/%s", r, nil)
 		},
 	}
 
diff --git a/cmd/user.go b/cmd/user.go
index 55329b9..880e378 100644
--- a/cmd/user.go
+++ b/cmd/user.go
@@ -16,6 +16,7 @@ package cmd
 import (
 	"strings"
 
+	"github.com/VirusTotal/vt-cli/utils"
 	"github.com/spf13/cobra"
 )
 
@@ -45,7 +46,9 @@ func NewUserCmd() *cobra.Command {
 					"api_quota_group",
 					"intelligence_quota_group",
 					"monitor_quota_group",
-				}, ","), args, nil)
+				}, ","),
+				utils.StringReaderFromCmdArgs(args),
+				nil)
 
 		},
 	}
diff --git a/go.mod b/go.mod
index 2828e0a..e39a001 100644
--- a/go.mod
+++ b/go.mod
@@ -15,7 +15,6 @@ require (
 	github.com/mattn/go-isatty v0.0.10 // indirect
 	github.com/mattn/go-runewidth v0.0.5 // indirect
 	github.com/mitchellh/go-homedir v1.1.0
-	github.com/mitchellh/gox v1.0.1 // indirect
 	github.com/pelletier/go-toml v1.6.0 // indirect
 	github.com/plusvic/go-ansi v0.0.0-20180516115420-9879244c4340
 	github.com/spf13/afero v1.2.2 // indirect
diff --git a/go.sum b/go.sum
index cdf8f9f..65048cc 100644
--- a/go.sum
+++ b/go.sum
@@ -56,8 +56,6 @@ github.com/gosuri/uitable v0.0.3/go.mod h1:tKR86bXuXPZazfOTG1FIzvjIdXzd0mo4Vtn16
 github.com/grpc-ecosystem/go-grpc-middleware v1.0.0/go.mod h1:FiyG127CGDf3tlThmgyCl78X/SZQqEOJBCDaAfeWzPs=
 github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0/go.mod h1:8NvIoxWQoOIhqOTXgfV/d3M/q6VIi02HzZEHgUlZvzk=
 github.com/grpc-ecosystem/grpc-gateway v1.9.0/go.mod h1:vNeuVxBJEsws4ogUvrchl83t/GYV9WGTSLVdBhOQFDY=
-github.com/hashicorp/go-version v1.0.0 h1:21MVWPKDphxa7ineQQTrCU5brh7OuVVAzGOCnnCPtE8=
-github.com/hashicorp/go-version v1.0.0/go.mod h1:fltr4n8CU8Ke44wwGCBoEymUuxUHl09ZGVZPK5anwXA=
 github.com/hashicorp/hcl v1.0.0 h1:0Anlzjpi4vEasTeNFn2mLJgTSwt0+6sfsiTG8qcWGx4=
 github.com/hashicorp/hcl v1.0.0/go.mod h1:E5yfLk+7swimpb2L/Alb/PJmXilQ/rhwaUYs4T20WEQ=
 github.com/inconshreveable/mousetrap v1.0.0 h1:Z8tu5sraLXCXIcARxBp/8cbvlwVa7Z1NHg9XEKhtSvM=
@@ -88,10 +86,6 @@ github.com/mattn/go-runewidth v0.0.5/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m
 github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0=
 github.com/mitchellh/go-homedir v1.1.0 h1:lukF9ziXFxDFPkA1vsr5zpc1XuPDn/wFntq5mG+4E0Y=
 github.com/mitchellh/go-homedir v1.1.0/go.mod h1:SfyaCUpYCn1Vlf4IUYiD9fPX4A5wJrkLzIz1N1q0pr0=
-github.com/mitchellh/gox v1.0.1 h1:x0jD3dcHk9a9xPSDN6YEL4xL6Qz0dvNYm8yZqui5chI=
-github.com/mitchellh/gox v1.0.1/go.mod h1:ED6BioOGXMswlXa2zxfh/xdd5QhwYliBFn9V18Ap4z4=
-github.com/mitchellh/iochan v1.0.0 h1:C+X3KsSTLFVBr/tK1eYN/vs4rJcvsiLU338UhYPJWeY=
-github.com/mitchellh/iochan v1.0.0/go.mod h1:JwYml1nuB7xOzsp52dPpHFffvOCDupsG0QubkSMEySY=
 github.com/mitchellh/mapstructure v1.1.2 h1:fmNYVwqnSfB9mZU6OS2O6GsXM+wcskZDuKQzvN1EDeE=
 github.com/mitchellh/mapstructure v1.1.2/go.mod h1:FVVH3fgwuzCH5S8UJGiWEs2h04kUh9fWfEaFds41c1Y=
 github.com/mwitkow/go-conntrack v0.0.0-20161129095857-cc309e4a2223/go.mod h1:qRWi+5nqEBWmkhHvq77mSJWrCKwh8bxhgT7d/eI7P4U=
diff --git a/utils/printer.go b/utils/printer.go
index 8c27ba2..47b6002 100644
--- a/utils/printer.go
+++ b/utils/printer.go
@@ -124,16 +124,7 @@ func (p *Printer) PrintObject(obj *vt.Object) error {
 // items from the args slice. If args contains a single "-" string, the args are
 // read from stdin one per line. If argRe is non-nil, only args that match the
 // regular expression are used and the rest are discarded.
-func (p *Printer) GetAndPrintObjects(endpoint string, args []string, argRe *regexp.Regexp) error {
-
-	var r StringReader
-
-	if len(args) == 1 && args[0] == "-" {
-		r = NewStringIOReader(os.Stdin)
-	} else {
-		r = NewStringArrayReader(args)
-	}
-
+func (p *Printer) GetAndPrintObjects(endpoint string, r StringReader, argRe *regexp.Regexp) error {
 	if argRe != nil {
 		r = NewFilteredStringReader(r, argRe)
 	}
diff --git a/utils/string_reader.go b/utils/string_reader.go
index c82b225..7bd33bf 100644
--- a/utils/string_reader.go
+++ b/utils/string_reader.go
@@ -16,6 +16,7 @@ package utils
 import (
 	"bufio"
 	"io"
+	"os"
 	"regexp"
 	"strings"
 )
@@ -86,9 +87,9 @@ func NewFilteredStringReader(r StringReader, re *regexp.Regexp) *FilteredStringR
 	return &FilteredStringReader{r: r, re: re}
 }
 
-// ReadString reads strings from the the underlying StringReader and returns
-// the first one that matches the regular expression specified while creating
-// the FilteredStringReader. If no more strings can be read err is io.EOF.
+// ReadString reads strings from the underlying StringReader and returns the
+// first one that matches the regular expression specified while creating the
+// FilteredStringReader. If no more strings can be read err is io.EOF.
 func (f *FilteredStringReader) ReadString() (s string, err error) {
 	for s, err = f.r.ReadString(); s != "" || err == nil; s, err = f.r.ReadString() {
 		if f.re.MatchString(s) {
@@ -97,3 +98,38 @@ func (f *FilteredStringReader) ReadString() (s string, err error) {
 	}
 	return s, err
 }
+
+
+// MappedStringReader reads strings from a StringReader and call a map function
+// that transforms the strings in some other string.
+type MappedStringReader struct {
+	r StringReader
+	mapFn func(string) string
+}
+
+// NewMappedStringReader creates a new MappedStringReader that reads strings from
+// r and can call mapFn for transforming the string before returning it.
+func NewMappedStringReader(r StringReader, mapFn func(string) string) *MappedStringReader {
+	return &MappedStringReader{r:r, mapFn: mapFn}
+}
+
+// ReadString reads strings from the underlying StringReader and can call the
+// map function associated to the MappedStringReader with that string, then
+// returns the result produced by the map function.
+func (m *MappedStringReader) ReadString() (s string, err error) {
+	if s, err = m.r.ReadString(); err == nil {
+		return m.mapFn(s), nil
+	}
+	return s, err
+}
+
+// StringReaderFromCmdArgs returns a string reader for reading the arguments
+// passed in the command line. If the arguments consists in single hypen "-",
+// they are read from stdin.
+func StringReaderFromCmdArgs(args []string) StringReader {
+	if len(args) == 1 && args[0] == "-" {
+		return NewStringIOReader(os.Stdin)
+	} else {
+		return NewStringArrayReader(args)
+	}
+}