i execute this command:

```
sed -i 13s/log4j.appender.ROOT2.File=.*/log4j.appender.ROOT2.File='/appli/diap/log.log/' /applis/DIAPASON/diapason1/conf/log4j.properties

```

i have this error:

```
sed: -e expression n°1, caractère 61: option inconnue pour `s'

```

Thx.