diff --git a/chrome/curl_chrome100 b/chrome/curl_chrome100
index cd7cc0e..6c757bc 100755
--- a/chrome/curl_chrome100
+++ b/chrome/curl_chrome100
@@ -1,7 +1,7 @@
 #!/bin/bash
 
 # Find the directory of this script
-dir=`echo "$0" | sed 's%/[^/]*$%%'`
+dir=${0%/*}
 
 # The list of ciphers can be obtained by looking at the Client Hello message in
 # Wireshark, then converting it using this reference
diff --git a/chrome/curl_chrome101 b/chrome/curl_chrome101
index 64ddcc4..4a52589 100755
--- a/chrome/curl_chrome101
+++ b/chrome/curl_chrome101
@@ -1,7 +1,7 @@
 #!/bin/bash
 
 # Find the directory of this script
-dir=`echo "$0" | sed 's%/[^/]*$%%'`
+dir=${0%/*}
 
 # The list of ciphers can be obtained by looking at the Client Hello message in
 # Wireshark, then converting it using this reference
diff --git a/chrome/curl_chrome99 b/chrome/curl_chrome99
index 3fa6161..427b82c 100755
--- a/chrome/curl_chrome99
+++ b/chrome/curl_chrome99
@@ -1,7 +1,7 @@
 #!/bin/bash
 
 # Find the directory of this script
-dir=`echo "$0" | sed 's%/[^/]*$%%'`
+dir=${0%/*}
 
 # The list of ciphers can be obtained by looking at the Client Hello message in
 # Wireshark, then converting it using this reference
diff --git a/chrome/curl_chrome99_android b/chrome/curl_chrome99_android
index 55e120c..5c04273 100755
--- a/chrome/curl_chrome99_android
+++ b/chrome/curl_chrome99_android
@@ -1,7 +1,7 @@
 #!/bin/bash
 
 # Find the directory of this script
-dir=`echo "$0" | sed 's%/[^/]*$%%'`
+dir=${0%/*}
 
 # The list of ciphers can be obtained by looking at the Client Hello message in
 # Wireshark, then converting it using this reference
diff --git a/chrome/curl_edge101 b/chrome/curl_edge101
index 359a848..e07c1b2 100755
--- a/chrome/curl_edge101
+++ b/chrome/curl_edge101
@@ -1,7 +1,7 @@
 #!/bin/bash
 
 # Find the directory of this script
-dir=`echo "$0" | sed 's%/[^/]*$%%'`
+dir=${0%/*}
 
 # The list of ciphers can be obtained by looking at the Client Hello message in
 # Wireshark, then converting it using this reference
diff --git a/chrome/curl_edge99 b/chrome/curl_edge99
index 3aad1c8..e4c9698 100755
--- a/chrome/curl_edge99
+++ b/chrome/curl_edge99
@@ -1,7 +1,7 @@
 #!/bin/bash
 
 # Find the directory of this script
-dir=`echo "$0" | sed 's%/[^/]*$%%'`
+dir=${0%/*}
 
 # The list of ciphers can be obtained by looking at the Client Hello message in
 # Wireshark, then converting it using this reference
diff --git a/chrome/curl_safari15_3 b/chrome/curl_safari15_3
index 6d08ead..50163a7 100755
--- a/chrome/curl_safari15_3
+++ b/chrome/curl_safari15_3
@@ -1,7 +1,7 @@
 #!/bin/bash
 
 # Find the directory of this script
-dir=`echo "$0" | sed 's%/[^/]*$%%'`
+dir=${0%/*}
 
 # The list of ciphers can be obtained by looking at the Client Hello message in
 # Wireshark, then converting it using this reference
diff --git a/firefox/curl_ff100 b/firefox/curl_ff100
index b11a177..35b7067 100755
--- a/firefox/curl_ff100
+++ b/firefox/curl_ff100
@@ -1,7 +1,7 @@
 #!/bin/bash
 
 # Find the directory of this script
-dir=`echo "$0" | sed 's%/[^/]*$%%'`
+dir=${0%/*}
 
 # The list of ciphers can be obtained by looking at the Client Hello message in
 # Wireshark, then converting it using the cipherlist array at
diff --git a/firefox/curl_ff91esr b/firefox/curl_ff91esr
index 4862a96..03d7dbd 100755
--- a/firefox/curl_ff91esr
+++ b/firefox/curl_ff91esr
@@ -1,7 +1,7 @@
 #!/bin/bash
 
 # Find the directory of this script
-dir=`echo "$0" | sed 's%/[^/]*$%%'`
+dir=${0%/*}
 
 # The list of ciphers can be obtained by looking at the Client Hello message in
 # Wireshark, then converting it using the cipherlist array at
diff --git a/firefox/curl_ff95 b/firefox/curl_ff95
index a433a8c..a3a6238 100755
--- a/firefox/curl_ff95
+++ b/firefox/curl_ff95
@@ -1,7 +1,7 @@
 #!/bin/bash
 
 # Find the directory of this script
-dir=`echo "$0" | sed 's%/[^/]*$%%'`
+dir=${0%/*}
 
 # The list of ciphers can be obtained by looking at the Client Hello message in
 # Wireshark, then converting it using the cipherlist array at
diff --git a/firefox/curl_ff98 b/firefox/curl_ff98
index b9b08d4..087e41d 100755
--- a/firefox/curl_ff98
+++ b/firefox/curl_ff98
@@ -1,7 +1,7 @@
 #!/bin/bash
 
 # Find the directory of this script
-dir=`echo "$0" | sed 's%/[^/]*$%%'`
+dir=${0%/*}
 
 # The list of ciphers can be obtained by looking at the Client Hello message in
 # Wireshark, then converting it using the cipherlist array at