update

2013-06-05 21:47:54 +00:00 · 2013-06-05 21:47:54 +00:00 · 6f050a029e
commit 6f050a029e
parent 1f1ad49427
2496 changed files with 37609 additions and 3031 deletions
--- a/Task/Determine-if-a-string-is-numeric/UNIX-Shell/determine-if-a-string-is-numeric.sh
+++ b/Task/Determine-if-a-string-is-numeric/UNIX-Shell/determine-if-a-string-is-numeric.sh
@ -0,0 +1,21 @@
+#!/bin/bash
+isnum() {
+  printf "%f" $1 >/dev/null 2>&1
+}
+
+
+check() {
+  if isnum $1
+  then
+     echo "$1 is numeric"
+  else
+     echo "$1 is NOT numeric"
+  fi
+}
+
+check 2
+check -3
+check +45.44
+check -33.332
+check 33.aa
+check 3.3.3