Re: troll velu avec systemd

systemctl status wpa_supplicant
journalctl --unit wpa_supplicant
journalctl --unit wpa_supplicant -xn
journalctl /usr/bin/foo

man journalctl

Aussi, tous les outils de systemd proposent la complétion. Ainsi, je suis tombé sur cette liste d'options :

max-laptop% journalctl --unit wpa_supplicant -
Completing option
--after-cursor —Start showing entries from after the specified cursor
--all -a —Show all fields, including long and unprintable

--boot -b —Show data only from the specified boot or offset

--catalog -x —Show explanatory texts with each log line

--cursor -c —Start showing entries from the specified cursor

--directory -D —Show journal files from directory

--disk-usage —Show total disk usage

--dmesg -k —Show only kernel messages from the current boot

--dump-catalog —Dump messages in catalog

--field -F —List all values a certain field takes

--file —Operate on specified journal files

--follow -f —Follow journal

--force —Force recreation of the FSS keys

--full -l —Show long fields in full

--header —Show journal header information

--help -h —Show this help

--interval —Time interval for changing the FSS sealing key

--lines -n —Number of journal entries to show

--list-boots —List boots ordered by time

--list-catalog —List messages in catalog

--merge -m —Show entries from all available journals

--new-id128 —Generate a new 128 Bit ID

--no-pager —Do not pipe output into a pager

--no-tail —Show all lines, even in follow mode

--output -o —Change journal output mode

--pager-end -e —Jump to the end of the journal in the pager

--priority -p —Show only messages within the specified priority rang
--quiet -q —Don't show privilege warning

--reverse -r —Reverse output

--root —Operate on catalog hierarchy under specified director
--setup-keys —Generate a new FSS key pair

--since —Start showing entries on or newer than the specified
--system —Show system and kernel messages

-u —Show data only from the specified unit

--until —Stop showing entries on or older than the specified d
--update-catalog —Update binary catalog database

--user —Show messages from user services

--user-unit —Show data only from the specified user session unit

--verify —Verify journal file consistency

--verify-key —Specify FSS verification key

--version —Show package version

"Quand certains râlent contre systemd, d'autres s'attaquent aux vrais problèmes." (merci Sinma !)