frodovdr/node-red
1
0
Fork 0
mirror of https://github.com/node-red/node-red.git synced 2023-10-10 13:36:53 +02:00
Code Issues Releases Wiki Activity

add bit more help to exec node

Browse Source 
Point out that parameters with spaces should be quoted
This commit is contained in:
Dave Conway-Jones 2015-10-05 21:41:53 +01:00
parent d5e1468718
commit 81e125b7ba
1 changed files with 1 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
nodes/core/core/75-exec.html
View File

@ -45,6 +45,7 @@
<p>By default uses exec() which calls the command, then gets a callback on completion, returning the complete result in one message, along with any errors.</p> <p>By default uses exec() which calls the command, then gets a callback on completion, returning the complete result in one message, along with any errors.</p>
<p>Optionally can use spawn() instead, which returns the output from stdout and stderr as the command runs (usually one line at a time). On completion it then returns a return code (on the 3rd output).</p> <p>Optionally can use spawn() instead, which returns the output from stdout and stderr as the command runs (usually one line at a time). On completion it then returns a return code (on the 3rd output).</p>
<p>The optional append gets added to the command after the <b>msg.payload</b> - so you can do things like pipe the result to another command.</p> <p>The optional append gets added to the command after the <b>msg.payload</b> - so you can do things like pipe the result to another command.</p>
<p>Parameters with spaces should be enclosed in quotes - <i>"This is a single parameter"</i></p>
<p>If stdout is binary a <i>buffer</i> is returned - otherwise returns a <i>string</i>.</p> <p>If stdout is binary a <i>buffer</i> is returned - otherwise returns a <i>string</i>.</p>
</script> </script>