Ust 5060/dev/5062 send content url

This seems dangerous ("cannot contain ' "). Why not adapt the command below to use a shell and do this:

```
echo "${content}" | curl [other options] -d@-
```

From curl's man page:
> If  you  start the data with the letter @, the rest should be a file name to read the data from, or - if you want curl to read the data from stdin.