linux bash script -> update remote mysql table -> error [0m

Question

i'm using some bash command to extract the current teamviewer id.

Therefore i use this:

    #!/bin/bash
OUTPUT="$(teamviewer --info | grep "TeamViewer ID:" | tr -s " " | cut -d ":" -f$

TEAMVIEWERID="${OUTPUT}"
echo $TEAMVIEWERID

mysql --host=xxx --user=xxx --password=xxx xxx$
update table SET teamviewerID="$TEAMVIEWERID" WHERE client="$1";
EOF

echo "DONE"

if i run it:

pi@xxx:~/Documents/xxx/tv $ sudo ./tv.sh client_xxx
 4975XXXXX
DONE
pi@xxx:~/Documents/xxx/tv $

ok everything seems to be fine BUT in mysql i receive the following thing: [0m 4975XXXXX

I'm confused what is happening here...

thx for helping

Answer 1

The characters at the beginning ( [0m ) are a so called escape sequence.
This specific one is used to clear all terminal formattings.

You can easily strip it by using sed .

Just replace your TEAMVIEWERID= line with the following:

TEAMVIEWERID=$(echo "$OUTPUT" | sed 's/\[0m\s//g')

---

Edit : If the TeamViewer ID always consists of numbers only, we can strip the unknown character by only allowing numbers:

TEAMVIEWERID=$(echo "$id" | sed 's/\[0m\s//g' | sed -re 's/[^0-9]+//g')

This will only allow numbers.