#mount -o remount /dossierARemonte
#tune2fs -l /dev/[le device]
$sed -i 's/old-text/new-text/g' input.txt
$openssl s_client -connect mail.server.tld:587 -starttls smtp
$openssl x509 -in certificat.crt -noout -text
$openssl rsa -in keyfile.key -noout -text
#qemu-img convert -p -f vmdk [/blablalbal/source].vmdk [/blablabla/destination].qcow2
$tshark -r ./fichierDeCapture.pcap [-T fields -e champ1* -e champ2*...] [paramEnplus**]
ex: tshark -r ./test.pcap -T fields -e ip.src -e ip.dst -e data ip.dst=192.168.1.1
curl Url --head [-v pour de la verbosite]
update-alternatives --config java