diff --git a/arch_delete_aws4.sh b/arch_delete_aws4.sh
index 3508f46..6e42aba 100755
--- a/arch_delete_aws4.sh
+++ b/arch_delete_aws4.sh
@@ -28,18 +28,21 @@ if [ -z "$ARCH_S3_BUCKET_URL" ]; then
 	exit 1
 fi
 
-BUCKET_NAME=$( echo -n $ARCH_S3_BUCKET_URL | cut -d'.' -f1 )
-SERVICE=$( echo -n $ARCH_S3_BUCKET_URL | cut -d'.' -f2 )
-REGION=$( echo -n $ARCH_S3_BUCKET_URL | cut -d'.' -f3 )
-ACCESS_KEY=$( echo -n $ARCH_S3_AUTH | cut -d':' -f1 )
-SECRET_KEY=$( echo -n $ARCH_S3_AUTH | cut -d':' -f2 )
+function _str { printf "%s" $@; }
+function _stre { printf $@; }
+
+BUCKET_NAME=$( _str $ARCH_S3_BUCKET_URL | cut -d'.' -f1 )
+SERVICE=$( _str $ARCH_S3_BUCKET_URL | cut -d'.' -f2 )
+REGION=$( _str $ARCH_S3_BUCKET_URL | cut -d'.' -f3 )
+ACCESS_KEY=$( _str $ARCH_S3_AUTH | cut -d':' -f1 )
+SECRET_KEY=$( _str $ARCH_S3_AUTH | cut -d':' -f2 )
 
 BUCKET_URL=$ARCH_S3_BUCKET_URL
 
 _DATE=$( date -u +"%Y%m%d" )
 _DTIME=$( date -u +"%Y%m%dT%H%M%SZ" )
 _HEADERS="host;x-amz-content-sha256;x-amz-date"
-_SHA=$( echo -n "" | sha256sum | cut -d' ' -f1 )
+_SHA=$( _str "" | sha256sum | cut -d' ' -f1 )
 
 # Canon Request
 _C="DELETE"
@@ -56,9 +59,9 @@ _C="$_C\n$_SHA"
 _S="AWS4-HMAC-SHA256"
 _S="$_S\n$_DTIME"
 _S="$_S\n$_DATE/$REGION/$SERVICE/aws4_request"
-_S="$_S\n$( echo -ne "$_C" | sha256sum | cut -d' ' -f1 )"
+_S="$_S\n$( _stre "$_C" | sha256sum | cut -d' ' -f1 )"
 
-function _HMAC { echo -ne "$2" | openssl dgst -sha256 -hex -mac HMAC -macopt "$1" | cut -d' ' -f2; }
+function _HMAC { _stre "$2" | openssl dgst -sha256 -hex -mac HMAC -macopt "$1" | cut -d' ' -f2; }
 
 SIG=$( _HMAC "key:AWS4$SECRET_KEY" "$_DATE" )
 SIG=$( _HMAC "hexkey:$SIG" "$REGION" )
diff --git a/arch_delete_many_aws4.sh b/arch_delete_many_aws4.sh
index 4ad3235..328b191 100755
--- a/arch_delete_many_aws4.sh
+++ b/arch_delete_many_aws4.sh
@@ -29,22 +29,25 @@ if [ -z "$ARCH_S3_BUCKET_URL" ]; then
 	exit 1
 fi
 
+function _str { printf "%s" $@; }
+function _stre { printf $@; }
+
 _TEMP=$( mktemp )
 function __clean_up { rm $_TEMP; }
 trap __clean_up EXIT
 
-echo -n "<Delete>" > $_TEMP
+_str "<Delete>" > $_TEMP
 sed "s/.\+/<Object><Key>\0<\/Key><\/Object>/g" $_LIST_SRC | tr -d '\n' >> $_TEMP
 if [ $? -ne 0 ]; then
 	exit 1
 fi
-echo -n "</Delete>" >> $_TEMP
+_str "</Delete>" >> $_TEMP
 
-BUCKET_NAME=$( echo -n $ARCH_S3_BUCKET_URL | cut -d'.' -f1 )
-SERVICE=$( echo -n $ARCH_S3_BUCKET_URL | cut -d'.' -f2 )
-REGION=$( echo -n $ARCH_S3_BUCKET_URL | cut -d'.' -f3 )
-ACCESS_KEY=$( echo -n $ARCH_S3_AUTH | cut -d':' -f1 )
-SECRET_KEY=$( echo -n $ARCH_S3_AUTH | cut -d':' -f2 )
+BUCKET_NAME=$( _str $ARCH_S3_BUCKET_URL | cut -d'.' -f1 )
+SERVICE=$( _str $ARCH_S3_BUCKET_URL | cut -d'.' -f2 )
+REGION=$( _str $ARCH_S3_BUCKET_URL | cut -d'.' -f3 )
+ACCESS_KEY=$( _str $ARCH_S3_AUTH | cut -d':' -f1 )
+SECRET_KEY=$( _str $ARCH_S3_AUTH | cut -d':' -f2 )
 
 BUCKET_URL=$ARCH_S3_BUCKET_URL
 
@@ -71,9 +74,9 @@ _C="$_C\n$_SHA"
 _S="AWS4-HMAC-SHA256"
 _S="$_S\n$_DTIME"
 _S="$_S\n$_DATE/$REGION/$SERVICE/aws4_request"
-_S="$_S\n$( echo -ne "$_C" | sha256sum | cut -d' ' -f1 )"
+_S="$_S\n$( _stre "$_C" | sha256sum | cut -d' ' -f1 )"
 
-function _HMAC { echo -ne "$2" | openssl dgst -sha256 -hex -mac HMAC -macopt "$1" | cut -d' ' -f2; }
+function _HMAC { _stre "$2" | openssl dgst -sha256 -hex -mac HMAC -macopt "$1" | cut -d' ' -f2; }
 
 SIG=$( _HMAC "key:AWS4$SECRET_KEY" "$_DATE" )
 SIG=$( _HMAC "hexkey:$SIG" "$REGION" )
diff --git a/arch_download_aws4.sh b/arch_download_aws4.sh
index 2c39004..760d582 100755
--- a/arch_download_aws4.sh
+++ b/arch_download_aws4.sh
@@ -27,18 +27,21 @@ if [ -z "$ARCH_S3_BUCKET_URL" ]; then
 	exit 1
 fi
 
-BUCKET_NAME=$( echo -n $ARCH_S3_BUCKET_URL | cut -d'.' -f1 )
-SERVICE=$( echo -n $ARCH_S3_BUCKET_URL | cut -d'.' -f2 )
-REGION=$( echo -n $ARCH_S3_BUCKET_URL | cut -d'.' -f3 )
-ACCESS_KEY=$( echo -n $ARCH_S3_AUTH | cut -d':' -f1 )
-SECRET_KEY=$( echo -n $ARCH_S3_AUTH | cut -d':' -f2 )
+function _str { printf "%s" $@; }
+function _stre { printf $@; }
+
+BUCKET_NAME=$( _str $ARCH_S3_BUCKET_URL | cut -d'.' -f1 )
+SERVICE=$( _str $ARCH_S3_BUCKET_URL | cut -d'.' -f2 )
+REGION=$( _str $ARCH_S3_BUCKET_URL | cut -d'.' -f3 )
+ACCESS_KEY=$( _str $ARCH_S3_AUTH | cut -d':' -f1 )
+SECRET_KEY=$( _str $ARCH_S3_AUTH | cut -d':' -f2 )
 
 BUCKET_URL=$ARCH_S3_BUCKET_URL
 
 _DATE=$( date -u +"%Y%m%d" )
 _DTIME=$( date -u +"%Y%m%dT%H%M%SZ" )
 _HEADERS="host;x-amz-content-sha256;x-amz-date"
-_SHA=$( echo -n "" | sha256sum | cut -d' ' -f1 )
+_SHA=$( _str "" | sha256sum | cut -d' ' -f1 )
 
 # Canon Request
 _C="GET"
@@ -55,9 +58,9 @@ _C="$_C\n$_SHA"
 _S="AWS4-HMAC-SHA256"
 _S="$_S\n$_DTIME"
 _S="$_S\n$_DATE/$REGION/$SERVICE/aws4_request"
-_S="$_S\n$( echo -ne "$_C" | sha256sum | cut -d' ' -f1 )"
+_S="$_S\n$( _stre "$_C" | sha256sum | cut -d' ' -f1 )"
 
-function _HMAC { echo -ne "$2" | openssl dgst -sha256 -hex -mac HMAC -macopt "$1" | cut -d' ' -f2; }
+function _HMAC { _stre "$2" | openssl dgst -sha256 -hex -mac HMAC -macopt "$1" | cut -d' ' -f2; }
 
 SIG=$( _HMAC "key:AWS4$SECRET_KEY" "$_DATE" )
 SIG=$( _HMAC "hexkey:$SIG" "$REGION" )
diff --git a/arch_getacl_aws4.sh b/arch_getacl_aws4.sh
index 2e2068e..50f966b 100755
--- a/arch_getacl_aws4.sh
+++ b/arch_getacl_aws4.sh
@@ -27,18 +27,21 @@ if [ -z "$ARCH_S3_BUCKET_URL" ]; then
 	exit 1
 fi
 
-BUCKET_NAME=$( echo -n $ARCH_S3_BUCKET_URL | cut -d'.' -f1 )
-SERVICE=$( echo -n $ARCH_S3_BUCKET_URL | cut -d'.' -f2 )
-REGION=$( echo -n $ARCH_S3_BUCKET_URL | cut -d'.' -f3 )
-ACCESS_KEY=$( echo -n $ARCH_S3_AUTH | cut -d':' -f1 )
-SECRET_KEY=$( echo -n $ARCH_S3_AUTH | cut -d':' -f2 )
+function _str { printf "%s" $@; }
+function _stre { printf $@; }
+
+BUCKET_NAME=$( _str $ARCH_S3_BUCKET_URL | cut -d'.' -f1 )
+SERVICE=$( _str $ARCH_S3_BUCKET_URL | cut -d'.' -f2 )
+REGION=$( _str $ARCH_S3_BUCKET_URL | cut -d'.' -f3 )
+ACCESS_KEY=$( _str $ARCH_S3_AUTH | cut -d':' -f1 )
+SECRET_KEY=$( _str $ARCH_S3_AUTH | cut -d':' -f2 )
 
 BUCKET_URL=$ARCH_S3_BUCKET_URL
 
 _DATE=$( date -u +"%Y%m%d" )
 _DTIME=$( date -u +"%Y%m%dT%H%M%SZ" )
 _HEADERS="host;x-amz-content-sha256;x-amz-date"
-_SHA=$( echo -n "" | sha256sum | cut -d' ' -f1 )
+_SHA=$( _str "" | sha256sum | cut -d' ' -f1 )
 
 # Keys should be sorted
 QPARAMS=(
@@ -46,7 +49,7 @@ QPARAMS=(
 )
 
 function _urlencode {
-	echo -n $1 | sed "s/\//%2F/g"
+	_str $1 | sed "s/\//%2F/g"
 }
 
 _L=${#QPARAMS[@]}
@@ -78,9 +81,9 @@ _C="$_C\n$_SHA"
 _S="AWS4-HMAC-SHA256"
 _S="$_S\n$_DTIME"
 _S="$_S\n$_DATE/$REGION/$SERVICE/aws4_request"
-_S="$_S\n$( echo -ne "$_C" | sha256sum | cut -d' ' -f1 )"
+_S="$_S\n$( _stre "$_C" | sha256sum | cut -d' ' -f1 )"
 
-function _HMAC { echo -ne "$2" | openssl dgst -sha256 -hex -mac HMAC -macopt "$1" | cut -d' ' -f2; }
+function _HMAC { _stre "$2" | openssl dgst -sha256 -hex -mac HMAC -macopt "$1" | cut -d' ' -f2; }
 
 SIG=$( _HMAC "key:AWS4$SECRET_KEY" "$_DATE" )
 SIG=$( _HMAC "hexkey:$SIG" "$REGION" )
diff --git a/arch_list_aws4.sh b/arch_list_aws4.sh
index 5567b35..1320bf2 100755
--- a/arch_list_aws4.sh
+++ b/arch_list_aws4.sh
@@ -24,18 +24,21 @@ if [ -z "$ARCH_S3_BUCKET_URL" ]; then
 	exit 1
 fi
 
-BUCKET_NAME=$( echo -n $ARCH_S3_BUCKET_URL | cut -d'.' -f1 )
-SERVICE=$( echo -n $ARCH_S3_BUCKET_URL | cut -d'.' -f2 )
-REGION=$( echo -n $ARCH_S3_BUCKET_URL | cut -d'.' -f3 )
-ACCESS_KEY=$( echo -n $ARCH_S3_AUTH | cut -d':' -f1 )
-SECRET_KEY=$( echo -n $ARCH_S3_AUTH | cut -d':' -f2 )
+function _str { printf "%s" $@; }
+function _stre { printf $@; }
+
+BUCKET_NAME=$( _str $ARCH_S3_BUCKET_URL | cut -d'.' -f1 )
+SERVICE=$( _str $ARCH_S3_BUCKET_URL | cut -d'.' -f2 )
+REGION=$( _str $ARCH_S3_BUCKET_URL | cut -d'.' -f3 )
+ACCESS_KEY=$( _str $ARCH_S3_AUTH | cut -d':' -f1 )
+SECRET_KEY=$( _str $ARCH_S3_AUTH | cut -d':' -f2 )
 
 BUCKET_URL=$ARCH_S3_BUCKET_URL
 
 _DATE=$( date -u +"%Y%m%d" )
 _DTIME=$( date -u +"%Y%m%dT%H%M%SZ" )
 _HEADERS="host;x-amz-content-sha256;x-amz-date"
-_SHA=$( echo -n "" | sha256sum | cut -d' ' -f1 )
+_SHA=$( _str "" | sha256sum | cut -d' ' -f1 )
 _PATH=""
 
 # Keys should be sorted
@@ -51,7 +54,7 @@ QPARAMS=(
 )
 
 function _urlencode {
-	echo -n $1 | sed "s/\//%2F/g"
+	_str $1 | sed "s/\//%2F/g"
 }
 
 _L=${#QPARAMS[@]}
@@ -88,9 +91,9 @@ _C="$_C\n$_SHA"
 _S="AWS4-HMAC-SHA256"
 _S="$_S\n$_DTIME"
 _S="$_S\n$_DATE/$REGION/$SERVICE/aws4_request"
-_S="$_S\n$( echo -ne "$_C" | sha256sum | cut -d' ' -f1 )"
+_S="$_S\n$( _stre "$_C" | sha256sum | cut -d' ' -f1 )"
 
-function _HMAC { echo -ne "$2" | openssl dgst -sha256 -hex -mac HMAC -macopt "$1" | cut -d' ' -f2; }
+function _HMAC { _stre "$2" | openssl dgst -sha256 -hex -mac HMAC -macopt "$1" | cut -d' ' -f2; }
 
 SIG=$( _HMAC "key:AWS4$SECRET_KEY" "$_DATE" )
 SIG=$( _HMAC "hexkey:$SIG" "$REGION" )
diff --git a/arch_upload_aws4.sh b/arch_upload_aws4.sh
index 7236301..5abd020 100755
--- a/arch_upload_aws4.sh
+++ b/arch_upload_aws4.sh
@@ -36,11 +36,14 @@ if [ -z "$ARCH_S3_BUCKET_URL" ]; then
 	exit 1
 fi
 
-BUCKET_NAME=$( echo -n $ARCH_S3_BUCKET_URL | cut -d'.' -f1 )
-SERVICE=$( echo -n $ARCH_S3_BUCKET_URL | cut -d'.' -f2 )
-REGION=$( echo -n $ARCH_S3_BUCKET_URL | cut -d'.' -f3 )
-ACCESS_KEY=$( echo -n $ARCH_S3_AUTH | cut -d':' -f1 )
-SECRET_KEY=$( echo -n $ARCH_S3_AUTH | cut -d':' -f2 )
+function _str { printf "%s" $@; }
+function _stre { printf $@; }
+
+BUCKET_NAME=$( _str $ARCH_S3_BUCKET_URL | cut -d'.' -f1 )
+SERVICE=$( _str $ARCH_S3_BUCKET_URL | cut -d'.' -f2 )
+REGION=$( _str $ARCH_S3_BUCKET_URL | cut -d'.' -f3 )
+ACCESS_KEY=$( _str $ARCH_S3_AUTH | cut -d':' -f1 )
+SECRET_KEY=$( _str $ARCH_S3_AUTH | cut -d':' -f2 )
 
 BUCKET_URL=$ARCH_S3_BUCKET_URL
 
@@ -72,9 +75,9 @@ _C="$_C\n$_FILE_SHA"
 _S="AWS4-HMAC-SHA256"
 _S="$_S\n$_DTIME"
 _S="$_S\n$_DATE/$REGION/$SERVICE/aws4_request"
-_S="$_S\n$( echo -ne "$_C" | sha256sum | cut -d' ' -f1 )"
+_S="$_S\n$( _stre "$_C" | sha256sum | cut -d' ' -f1 )"
 
-function _HMAC { echo -ne "$2" | openssl dgst -sha256 -hex -mac HMAC -macopt "$1" | cut -d' ' -f2; }
+function _HMAC { _stre "$2" | openssl dgst -sha256 -hex -mac HMAC -macopt "$1" | cut -d' ' -f2; }
 
 SIG=$( _HMAC "key:AWS4$SECRET_KEY" "$_DATE" )
 SIG=$( _HMAC "hexkey:$SIG" "$REGION" )