diff --git a/icu4c/source/test/perf/collationperf/CollPerf.pl b/icu4c/source/test/perf/collationperf/CollPerf.pl
index b5c7b07eaf0..26d236b0d93 100755
--- a/icu4c/source/test/perf/collationperf/CollPerf.pl
+++ b/icu4c/source/test/perf/collationperf/CollPerf.pl
@@ -14,7 +14,7 @@ if ($OnWindows) {
     $p = "cd ".$ICULatest."/bin && ".$ICUPathLatest . "/collationperf/$WindowsPlatform/Release/collationperf.exe";
 }
 else {
-    $p = "LD_LIBRARY_PATH=".$ICULatest."/source/lib:".$ICULatest."source/tools/ctestfw ".$ICUPathLatest . "/collationperf/collperf";
+    $p = "LD_LIBRARY_PATH=".$ICULatest."/source/lib:".$ICULatest."/source/tools/ctestfw ".$ICUPathLatest . "/collationperf/collperf";
 }
 
 my @locale = (
diff --git a/icu4c/source/test/perf/collperf/CollPerf.pl b/icu4c/source/test/perf/collperf/CollPerf.pl
index 48135c4f064..6f55b300794 100755
--- a/icu4c/source/test/perf/collperf/CollPerf.pl
+++ b/icu4c/source/test/perf/collperf/CollPerf.pl
@@ -28,7 +28,7 @@ my $p;
 if ($OnWindows) {
     $p = "cd ".$ICULatest."/bin && ".$ICUPathLatest."/collperf/$WindowsPlatform/Release/collperf.exe";
 } else {
-    $p = "LD_LIBRARY_PATH=".$ICULatest."/source/lib:".$ICULatest."source/tools/ctestfw ".$ICUPathLatest."/collperf/collperf";
+    $p = "LD_LIBRARY_PATH=".$ICULatest."/source/lib:".$ICULatest."/source/tools/ctestfw ".$ICUPathLatest."/collperf/collperf";
 }
 
 # programs
diff --git a/icu4c/source/test/perf/collperf/CollPerf_r.pl b/icu4c/source/test/perf/collperf/CollPerf_r.pl
index 0995ec82ac7..ab969d7a149 100755
--- a/icu4c/source/test/perf/collperf/CollPerf_r.pl
+++ b/icu4c/source/test/perf/collperf/CollPerf_r.pl
@@ -32,8 +32,8 @@ if ($OnWindows) {
     $p1 = "cd ".$ICUPrevious."/bin && ".$ICUPathPrevious."/collperf/$WindowsPlatform/Release/collperf.exe";
     $p2 = "cd ".$ICULatest."/bin && ".$ICUPathLatest."/collperf/$WindowsPlatform/Release/collperf.exe";
 } else {
-    $p1 = "LD_LIBRARY_PATH=".$ICUPrevious."/source/lib:".$ICUPrevious."source/tools/ctestfw ".$ICUPathPrevious."/collperf/collperf";
-    $p2 = "LD_LIBRARY_PATH=".$ICULatest."/source/lib:".$ICULatest."source/tools/ctestfw ".$ICUPathLatest."/collperf/collperf";
+    $p1 = "LD_LIBRARY_PATH=".$ICUPrevious."/source/lib:".$ICUPrevious."/source/tools/ctestfw ".$ICUPathPrevious."/collperf/collperf";
+    $p2 = "LD_LIBRARY_PATH=".$ICULatest."/source/lib:".$ICULatest."/source/tools/ctestfw ".$ICUPathLatest."/collperf/collperf";
 }
 
 
diff --git a/icu4c/source/test/perf/normperf/NormPerf_r.pl b/icu4c/source/test/perf/normperf/NormPerf_r.pl
index 52b0d4c0bda..d38b616e450 100755
--- a/icu4c/source/test/perf/normperf/NormPerf_r.pl
+++ b/icu4c/source/test/perf/normperf/NormPerf_r.pl
@@ -34,8 +34,8 @@ if ($OnWindows) {
     $p1 = "cd ".$ICUPrevious."/bin && ".$ICUPathPrevious."/normperf/$WindowsPlatform/Release/normperf.exe";
     $p2 = "cd ".$ICULatest."/bin && ".$ICUPathLatest."/normperf/$WindowsPlatform/Release/normperf.exe";
 } else {
-    $p1 = "LD_LIBRARY_PATH=".$ICUPrevious."/source/lib:".$ICUPrevious."source/tools/ctestfw ".$ICUPathPrevious."/normperf/normperf";
-    $p2 = "LD_LIBRARY_PATH=".$ICULatest."/source/lib:".$ICULatest."source/tools/ctestfw ".$ICUPathLatest."/normperf/normperf";
+    $p1 = "LD_LIBRARY_PATH=".$ICUPrevious."/source/lib:".$ICUPrevious."/source/tools/ctestfw ".$ICUPathPrevious."/normperf/normperf";
+    $p2 = "LD_LIBRARY_PATH=".$ICULatest."/source/lib:".$ICULatest."/source/tools/ctestfw ".$ICUPathLatest."/normperf/normperf";
 }
 
 my $dataFiles = {
diff --git a/icu4c/source/test/perf/strsrchperf/StrSrchPerf_r.pl b/icu4c/source/test/perf/strsrchperf/StrSrchPerf_r.pl
index f35379b81c5..8f81c346786 100644
--- a/icu4c/source/test/perf/strsrchperf/StrSrchPerf_r.pl
+++ b/icu4c/source/test/perf/strsrchperf/StrSrchPerf_r.pl
@@ -38,8 +38,8 @@ if ($OnWindows) {
     $p2 = "cd ".$ICULatest."/bin && ".$ICUPathLatest . "/strsrchperf/$WindowsPlatform/Release/strsrchperf.exe -b";
 }
 else {
-    $p1 = "LD_LIBRARY_PATH=".$ICUPrevious."/source/lib:".$ICUPrevious."source/tools/ctestfw ".$ICUPathPrevious . "/strsrchperf/strsrchperf -b";
-    $p2 = "LD_LIBRARY_PATH=".$ICULatest."/source/lib:".$ICULatest."source/tools/ctestfw ".$ICUPathLatest . "/strsrchperf/strsrchperf -b";
+    $p1 = "LD_LIBRARY_PATH=".$ICUPrevious."/source/lib:".$ICUPrevious."/source/tools/ctestfw ".$ICUPathPrevious . "/strsrchperf/strsrchperf -b";
+    $p2 = "LD_LIBRARY_PATH=".$ICULatest."/source/lib:".$ICULatest."/source/tools/ctestfw ".$ICUPathLatest . "/strsrchperf/strsrchperf -b";
 }
 
 my $dataFiles = {
diff --git a/icu4c/source/test/perf/ubrkperf/UBrkPerf_r.pl b/icu4c/source/test/perf/ubrkperf/UBrkPerf_r.pl
index be3d87d60ea..fa91f749942 100755
--- a/icu4c/source/test/perf/ubrkperf/UBrkPerf_r.pl
+++ b/icu4c/source/test/perf/ubrkperf/UBrkPerf_r.pl
@@ -46,8 +46,8 @@ if ($OnWindows) {
     $p1 = "cd ".$ICUPrevious."/bin && ".$ICUPathPrevious."/ubrkperf/$WindowsPlatform/Release/ubrkperf.exe";
     $p2 = "cd ".$ICULatest."/bin && ".$ICUPathLatest."/ubrkperf/$WindowsPlatform/Release/ubrkperf.exe";
 } else {
-    $p1 = "LD_LIBRARY_PATH=".$ICUPrevious."/source/lib:".$ICUPrevious."source/tools/ctestfw ".$ICUPathPrevious."/ubrkperf/ubrkperf";
-    $p2 = "LD_LIBRARY_PATH=".$ICULatest."/source/lib:".$ICULatest."source/tools/ctestfw ".$ICUPathLatest."/ubrkperf/ubrkperf";
+    $p1 = "LD_LIBRARY_PATH=".$ICUPrevious."/source/lib:".$ICUPrevious."/source/tools/ctestfw ".$ICUPathPrevious."/ubrkperf/ubrkperf";
+    $p2 = "LD_LIBRARY_PATH=".$ICULatest."/source/lib:".$ICULatest."/source/tools/ctestfw ".$ICUPathLatest."/ubrkperf/ubrkperf";
 }
 
 my $dataFiles = {
diff --git a/icu4c/source/test/perf/unisetperf/unisetperf.pl b/icu4c/source/test/perf/unisetperf/unisetperf.pl
index e7aa24eeded..07c0600d43e 100755
--- a/icu4c/source/test/perf/unisetperf/unisetperf.pl
+++ b/icu4c/source/test/perf/unisetperf/unisetperf.pl
@@ -30,7 +30,7 @@ my $p;
 if ($OnWindows) {
     $p = "cd ".$ICULatest."/bin && ".$ICUPathLatest."/unisetperf/$WindowsPlatform/Release/unisetperf.exe";
 } else {
-    $p = "LD_LIBRARY_PATH=".$ICULatest."/source/lib:".$ICULatest."source/tools/ctestfw ".$ICUPathLatest."/unisetperf/unisetperf";
+    $p = "LD_LIBRARY_PATH=".$ICULatest."/source/lib:".$ICULatest."/source/tools/ctestfw ".$ICUPathLatest."/unisetperf/unisetperf";
 }
 
 my $tests = {
diff --git a/icu4c/source/test/perf/usetperf/UsetPerf.pl b/icu4c/source/test/perf/usetperf/UsetPerf.pl
index 342495c5c31..93ddb79c986 100755
--- a/icu4c/source/test/perf/usetperf/UsetPerf.pl
+++ b/icu4c/source/test/perf/usetperf/UsetPerf.pl
@@ -33,8 +33,8 @@ if ($OnWindows) {
     $p1 = "cd ".$ICUPrevious."/bin && ".$ICUPathPrevious."/usetperf/$WindowsPlatform/Release/usetperf.exe";
     $p2 = "cd ".$ICULatest."/bin && ".$ICUPathLatest."/usetperf/$WindowsPlatform/Release/usetperf.exe";
 } else {
-    $p1 = "LD_LIBRARY_PATH=".$ICUPrevious."/source/lib:".$ICUPrevious."source/tools/ctestfw ".$ICUPathPrevious."/usetperf/usetperf";
-    $p2 = "LD_LIBRARY_PATH=".$ICULatest."/source/lib:".$ICULatest."source/tools/ctestfw ".$ICUPathLatest."/usetperf/usetperf";
+    $p1 = "LD_LIBRARY_PATH=".$ICUPrevious."/source/lib:".$ICUPrevious."/source/tools/ctestfw ".$ICUPathPrevious."/usetperf/usetperf";
+    $p2 = "LD_LIBRARY_PATH=".$ICULatest."/source/lib:".$ICULatest."/source/tools/ctestfw ".$ICUPathLatest."/usetperf/usetperf";
 } 
 
 my $tests = { 
diff --git a/icu4c/source/test/perf/ustrperf/StringPerf.pl b/icu4c/source/test/perf/ustrperf/StringPerf.pl
index 0b1a0984793..8089838d6de 100755
--- a/icu4c/source/test/perf/ustrperf/StringPerf.pl
+++ b/icu4c/source/test/perf/ustrperf/StringPerf.pl
@@ -33,7 +33,7 @@ my $p;
 if ($OnWindows) {
     $p = "cd ".$ICULatest."/bin && ".$ICUPathLatest."/ustrperf/$WindowsPlatform/Release/stringperf.exe -l -u";
 } else {
-    $p = "LD_LIBRARY_PATH=".$ICULatest."/source/lib:".$ICULatest."source/tools/ctestfw ".$ICUPathLatest."/ustrperf/stringperf -l -u";
+    $p = "LD_LIBRARY_PATH=".$ICULatest."/source/lib:".$ICULatest."/source/tools/ctestfw ".$ICUPathLatest."/ustrperf/stringperf -l -u";
 }
 
 my $tests = { 
diff --git a/icu4c/source/test/perf/ustrperf/StringPerf_r.pl b/icu4c/source/test/perf/ustrperf/StringPerf_r.pl
index 34f4ccb2261..69f4f972566 100755
--- a/icu4c/source/test/perf/ustrperf/StringPerf_r.pl
+++ b/icu4c/source/test/perf/ustrperf/StringPerf_r.pl
@@ -33,8 +33,8 @@ if ($OnWindows) {
     $p1 = "cd ".$ICUPrevious."/bin && ".$ICUPathPrevious."/ustrperf/$WindowsPlatform/Release/stringperf.exe -b -u"; # Previous
     $p2 = "cd ".$ICULatest."/bin && ".$ICUPathLatest."/ustrperf/$WindowsPlatform/Release/stringperf.exe -b -u"; # Latest
 } else {
-    $p1 = "LD_LIBRARY_PATH=".$ICUPrevious."/source/lib:".$ICUPrevious."source/tools/ctestfw ".$ICUPathPrevious."/ustrperf/stringperf -b -u"; # Previous
-    $p2 = "LD_LIBRARY_PATH=".$ICULatest."/source/lib:".$ICULatest."source/tools/ctestfw ".$ICUPathLatest."/ustrperf/stringperf -b -u"; # Latest
+    $p1 = "LD_LIBRARY_PATH=".$ICUPrevious."/source/lib:".$ICUPrevious."/source/tools/ctestfw ".$ICUPathPrevious."/ustrperf/stringperf -b -u"; # Previous
+    $p2 = "LD_LIBRARY_PATH=".$ICULatest."/source/lib:".$ICULatest."/source/tools/ctestfw ".$ICUPathLatest."/ustrperf/stringperf -b -u"; # Latest
 }
 
 my $dataFiles = {
diff --git a/icu4c/source/test/perf/utfperf/UtfPerf.pl b/icu4c/source/test/perf/utfperf/UtfPerf.pl
index 5fab57deb41..9f0f5dc2ef3 100755
--- a/icu4c/source/test/perf/utfperf/UtfPerf.pl
+++ b/icu4c/source/test/perf/utfperf/UtfPerf.pl
@@ -33,8 +33,8 @@ if ($OnWindows) {
     $p1 = "cd ".$ICUPrevious."/bin && ".$ICUPathPrevious."/utfperf/$WindowsPlatform/Release/utfperf.exe -e gb18030"; # Previous
     $p2 = "cd ".$ICULatest."/bin && ".$ICUPathLatest."/utfperf/$WindowsPlatform/Release/utfperf.exe -e gb18030"; # Latest
 } else {
-    $p1 = "LD_LIBRARY_PATH=".$ICUPrevious."/source/lib:".$ICUPrevious."source/tools/ctestfw ".$ICUPathPrevious."/utfperf/utfperf -e gb18030"; # Previous
-    $p2 = "LD_LIBRARY_PATH=".$ICULatest."/source/lib:".$ICULatest."source/tools/ctestfw ".$ICUPathLatest."/utfperf/utfperf -e gb18030"; # Latest
+    $p1 = "LD_LIBRARY_PATH=".$ICUPrevious."/source/lib:".$ICUPrevious."/source/tools/ctestfw ".$ICUPathPrevious."/utfperf/utfperf -e gb18030"; # Previous
+    $p2 = "LD_LIBRARY_PATH=".$ICULatest."/source/lib:".$ICULatest."/source/tools/ctestfw ".$ICUPathLatest."/utfperf/utfperf -e gb18030"; # Latest
 }
 
 my $tests = {