split: add -b option; clarify the behaviour of -C option (#2083)

pages/common/split.md

@@ -4,12 +4,16 @@
 
 - Split a file, each split having 10 lines (except the last split):
 
-`split -l 10 {{filename}}`
+`split -l {{10}} {{filename}}`
 
 - Split a file into 5 files. File is split such that each split has same size (except the last split):
 
-`split -n 5 {{filename}}`
+`split -n {{5}} {{filename}}`
 
-- Split a file with at most 512 bytes of lines in each split:
+- Split a file with 512 bytes in each split (except the last split; use 512k for kilobytes and 512m for megabytes):
 
-`split -C 512 {{filename}}`
+`split -b {{512}} {{filename}}`
+
+- Split a file with at most 512 bytes in each split without breaking lines:
+
+`split -C {{512}} {{filename}}`

pages/osx/split.md

@@ -0,0 +1,15 @@
+# split
+
+> Split a file into pieces.
+
+- Split a file, each split having 10 lines (except the last split):
+
+`split -l {{10}} {{filename}}`
+
+- Split a file into 5 files. File is split such that each split has same size (except the last split):
+
+`split -n {{5}} {{filename}}`
+
+- Split a file with 512 bytes in each split (except the last split; use 512k for kilobytes and 512m for megabytes):
+
+`split -b {{512}} {{filename}}`