3 files changed, 7 insertions, 7 deletions
diff --git a/bin/reduceDuplicates.js b/bin/reduceDuplicates.js
index ab2cea6..e2ba562 100755
--- a/bin/reduceDuplicates.js
+++ b/bin/reduceDuplicates.js
@@ -40,7 +40,7 @@ const index = new Transform({
   transform(feature, encoding, callback) {
     sourceCount++
 
-    if (sourceCount % 10000 === 0) {
+    if (process.stdout.isTTY && sourceCount % 10000 === 0) {
       process.stdout.write(` ${sourceCount / 1000}k\r`)
     }
 
@@ -70,7 +70,7 @@ const reduce = new Transform({
   writableObjectMode: true,
   transform(key, encoding, callback) {
     reduceIndex++
-    if (reduceIndex % 10000 === 0) {
+    if (process.stdout.isTTY && reduceIndex % 10000 === 0) {
       process.stdout.write(` ${reduceIndex / 1000}k / ${Math.round(sourceCount / 1000)}k (${Math.round(reduceIndex / sourceCount * 100)}%)\r`)
     }
 
diff --git a/bin/reduceOverlap.js b/bin/reduceOverlap.js
index c5da852..62ba10d 100755
--- a/bin/reduceOverlap.js
+++ b/bin/reduceOverlap.js
@@ -41,7 +41,7 @@ const index = new Transform({
     sourceCount++
 
     if (!argv.quiet) {
-      if (sourceCount % 10000 === 0) {
+      if (process.stdout.isTTY && sourceCount % 10000 === 0) {
         process.stdout.write(` ${sourceCount / 1000}k\r`)
       }
     }
@@ -67,7 +67,7 @@ const reduce = new Transform({
   transform(key, encoding, callback) {
     reduceIndex++
     if (!argv.quiet) {
-      if (reduceIndex % 10000 === 0) {
+      if (process.stdout.isTTY && reduceIndex % 10000 === 0) {
         process.stdout.write(` ${reduceIndex / 1000}k / ${Math.round(sourceCount / 1000)}k (${Math.round(reduceIndex / sourceCount * 100)}%)\r`)
       }
     }
diff --git a/bin/reduceRangeDuplicates.js b/bin/reduceRangeDuplicates.js
index 67dbf4e..11600b4 100755
--- a/bin/reduceRangeDuplicates.js
+++ b/bin/reduceRangeDuplicates.js
@@ -64,7 +64,7 @@ const index = new Transform({
   transform(feature, encoding, callback) {
     sourceCount++
 
-    if (sourceCount % 10000 === 0) {
+    if (process.stdout.isTTY && sourceCount % 10000 === 0) {
       process.stdout.write(` ${sourceCount / 1000}k\r`)
     }
 
@@ -108,7 +108,7 @@ const reduceRange = new Transform({
   writableObjectMode: true,
   transform(feature, encoding, callback) {
     reduceRangeIndex++
-    if (reduceRangeIndex % 10000 === 0) {
+    if (process.stdout.isTTY && reduceRangeIndex % 10000 === 0) {
       process.stdout.write(` ${reduceRangeIndex / 1000}k / ${Math.round(sourceCount / 1000)}k (${Math.round(reduceRangeIndex / sourceCount * 100)}%)\r`)
     }
     
@@ -221,7 +221,7 @@ const reduceNonRange = new Transform({
   writableObjectMode: true,
   transform(feature, encoding, callback) {
     reduceNonRangeIndex++
-    if (reduceNonRangeIndex % 10000 === 0) {
+    if (process.stdout.isTTY && reduceNonRangeIndex % 10000 === 0) {
       process.stdout.write(` ${reduceNonRangeIndex / 1000}k / ${Math.round(sourceCount / 1000)}k (${Math.round(reduceNonRangeIndex / sourceCount * 100)}%)\r`)
     }