ESP8266 Community Forum

Posted: **Sun Nov 22, 2015 5:49 pm**

Hi,

I just want to share with you a simple bash script to upload a file to an ESP8266 when a telnet server is run there. It helps me when I'm too lazy to physically access my device and still wants to upload an updated script.
The target has the same file name as the source file.

It works fine with the telnet server shown as an example on the NodeMCU project page (https://github.com/nodemcu/nodemcu-firmware).

Code: Select all

#!/bin/sh
delay=0.5
file=`basename $1`
(k=1;echo "file.remove(\"$file\")";sleep $delay;echo "file.open(\"$file\",\"w\")";sleep $delay; while read line;do echo "print($k);file.writeline([[$line]])"; k=$((k+1)); sleep $delay; done < $1;echo "file.close()")|ncat -v $2 23

The first parameter is the file to be uploaded and the second parameter is a telnet server name/address.

Posted: **Sun Jul 24, 2016 2:33 pm**

Removing some bugs

Code: Select all

#!/bin/bash
if [ -z "$1$2" ]; then
  echo "Usage: upload.sh [file] [esp8266 telnet server ip address]"
  exit 1
fi
delay=0.5
file=`basename $1`
(k=1;echo "file.remove(\"$file\")";sleep $delay;echo "file.open(\"$file\",\"w\")";sleep $delay; while IFS='' read -r line;do echo "print($k);file.writeline([[""${line//]/] }""]])"; k=$((k+1)); sleep $delay; done < $1;echo "file.close()")|ncat -v $2 23

Posted: **Mon Apr 02, 2018 9:28 am**

Hi,
Thank you for the awesome work .
But i failed to understand if by uploading a file you mean uploading code into nodeMCU(like OTA) or anything different?

Shariq

Posted: **Mon Apr 02, 2018 9:42 am**

Hi,
Are you uploading a lua file (like firmware update)or the codes of .ino/.bin files into the nodeMCU(like OTA update)?

ESP8266 Community Forum

Uploading a file to a NodeMCU ESP8266 telnet server

Uploading a file to a NodeMCU ESP8266 telnet server

Re: Uploading a file to a NodeMCU ESP8266 telnet server

Re: Uploading a file to a NodeMCU ESP8266 telnet server

Re: Uploading a file to a NodeMCU ESP8266 telnet server