En tapant :
vi /etc/default/cron
j'ai :
CRONLOG - Enable or disable cron's logging facility.
MAXLOGSIZE - Maximum number of 512 byte blocks in the log file before /usr/lib/cron/logchecker truncates it.
MAXRUN - Maximum number of processes cron will manage concurrently (minimum 10).
NOTESHELL - If set to yes, users submitting cron and at jobs are notified if their login shell is different from the shell that is used by cron to run jobs.
INPUT - If set to NO, the cron job input mechanism is desable: neither % nor \ are changed, removed or otherwise treated.
Voilou