Add nl utility etc.

echo.nim

@@ -2,8 +2,10 @@ import cligen, sequtils
 import common
 
 proc main(strings:seq[string], newline=true) =
-    if newline: writeLine(stdout, strings.foldl(a & " " & b))
+    if newline:
-    else: write(stdout, strings.foldl(a & " " & b))
+        writeLine(stdout, strings.foldl(a & " " & b))
+    else:
+        write(stdout, strings.foldl(a & " " & b))
     flushFile(stdout)
 
 dispatch(main, version=("version", nimbaseVersion))

nimbase.nimble

@@ -8,6 +8,6 @@ requires      "nim >= 0.19.0"
 requires      "cligen >= 0.9.19"
 requires      "stint >= 0.0.1"
 
-bin           = @["add", "cat", "cp", "div", "echo", "factor", "false", "head", "mkdir", "mul", "pwd", "rm", "seq", "shuf", "sleep", "sub", "tee", "touch", "true", "yes"]
+bin           = @["add", "cat", "cp", "div", "echo", "factor", "false", "head", "mkdir", "mul", "nl", "pwd", "rm", "seq", "shuf", "sleep", "sub", "tee", "touch", "true", "yes"]
 
 binDir        = "bin"

nl.nim

@@ -0,0 +1,11 @@
+import cligen
+import common
+
+proc main(files:seq[string], lineIncrement=1) =
+    for file in files:
+        var lineNr = 0
+        for line in lines(file):
+            lineNr += lineIncrement
+            writeLine(stdout, $(lineNr) & line)
+
+dispatch(main, version=("version", nimbaseVersion))

shuf.nim

@@ -3,6 +3,7 @@ import common
 
 proc main(files:seq[string]) =
     for file in files:
-        echo ""
+        for line in lines(file):
+            echo line
 
 dispatch(main, version=("version", nimbaseVersion))