email - Linux: Crontab Job without Interfering with Sys Admin's Jobs? -

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i need create new crontab job in redhat linux environment. have sudo access don't think can on system--some higher level sys admins, example, disable firewall changes make.

so here crontab command:

crontab e

and brings screen like:

33 2 * * * /usr/bin/cu-firewall update > /dev/null 2>&1 30 1 * * * /root/update_atbi_website > /dev/null 0  4 * * * /home/prov356/scripts/opnforumbackup

i want not send email , have done in local vm:

mailto="" # execute 15 minute */15 * * * * perl /db_xenia/pl/get_usgs.pl

question: if append above existing crontab info prevent sending of emails sys admin too? don't want trouble! perhaps, append /dev/null after perl commands?

thanks.

never mind: per @basile's comment, didn't need sudo. logged in non-sudo , ran crontab -e; time there no sys admin entries. entered own configs, saved, , cronjob seems running fine.

thanks.


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