Add ssh-retry

README.md

@@ -53,6 +53,7 @@ Here's a list of the most interesting ones, along with what they do and where th
  - [shellshare](https://shellshare.net/) - A live terminal broadcasting utility.
  - [colortrans](https://gist.github.com/MicahElliott/719710) - Convert rgb colours to xterm ones
  - nautilus-here - A quick command that  opens nautilus in the current directory. For lazy people :P
+ - ssh-retry - I forget where it came from, but this command reepeatedly calls ssh until it succeeds in connecting.
 
 ## Disclaimer
 I don't own many of the tools in this repository. If you are an owner of one of these tools and I haven't linked to you, please let me know as I probably forgot.

ssh-retry

@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+
+# Check we've got command line arguments
+if [ -z "$*" ] ; then
+    echo "Need to specify ssh options"
+    exit 1
+fi
+
+# Start trying and retrying
+((count = 100))
+while [[ $count -ne 0 ]] ; do
+    ssh $*
+    rc=$?
+    if [[ $rc -eq 0 ]] ; then
+        ((count = 1))
+    fi
+    ((count = count - 1))
+done
+
+# Print a message if we failed
+if [[ $rc -ne 0 ]] ; then
+    echo "Could not connect to $* after 100 attempts - stopping."
+fi
+