modify a user account NAME usermod - modify a user account SYNOPSIS usermod [ options ] LOGIN DESCRIPTION The usermod command modifies the system account files. OPTIONS The options…discard unused blocks on a mounted filesystem NAME fstrim - discard unused blocks on a mounted filesystem SYNOPSIS fstrim [ -v ] [ -o offset ] [ -l length ] [ -m minimum-size ] -A …Journal service NAME systemd-journald.service, systemd-journald.socket, systemd-journald-dev-log.socket, systemd-journald-audit.socket, systemd-journald@.service, systemd-journald@…Journal service NAME systemd-journald.service, systemd-journald.socket, systemd-journald-dev-log.socket, systemd-journald-audit.socket, systemd-journald@.service, systemd-journald@…Journal service NAME systemd-journald.service, systemd-journald.socket, systemd-journald-dev-log.socket, systemd-journald-audit.socket, systemd-journald@.service, systemd-journald@…Journal service NAME systemd-journald.service, systemd-journald.socket, systemd-journald-dev-log.socket, systemd-journald-audit.socket, systemd-journald@.service, systemd-journald@…PAM module to set or modify disk quotas on session start NAME pam_setquota - PAM module to set or modify disk quotas on session start SYNOPSIS pam_setquota.so [fs= /home ] [overwri…Journal service NAME systemd-journald.service, systemd-journald.socket, systemd-journald-dev-log.socket, systemd-journald-audit.socket, systemd-journald@.service, systemd-journald@…mount a filesystem NAME mount - mount a filesystem SYNOPSIS mount [ -h | -V ] mount [ -l ] [ -t fstype ] mount -a [ -fFnrsvw ] [ -t fstype ] [ -O optlist ] mount [ -fnrsvw ] [ -o o…tell the kernel about the presence and numbering of on-disk partitions NAME partx - tell the kernel about the presence and numbering of on-disk partitions SYNOPSIS partx [ -a | -d …Multiqueue Priority Qdisc (Offloaded Hardware QOS) NAME MQPRIO - Multiqueue Priority Qdisc (Offloaded Hardware QOS) SYNOPSIS tc qdisc ... dev dev ( parent classid | root) [ handle …Enable or disable TTY auditing for specified users NAME pam_tty_audit - Enable or disable TTY auditing for specified users SYNOPSIS pam_tty_audit.so [disable= patterns ] [enable= p…show / manipulate bridge addresses and devices NAME bridge - show / manipulate bridge addresses and devices SYNOPSIS bridge [ OPTIONS ] OBJECT { COMMAND | help } OBJECT := { link |…attach a line discipline to a serial line NAME ldattach - attach a line discipline to a serial line SYNOPSIS ldattach [ -1278denoVh ] [ -i iflag ] [ -s speed ] ldisc device DESCRIP…Time Aware Priority Shaper NAME TAPRIO - Time Aware Priority Shaper SYNOPSIS tc qdisc ... dev dev parent classid [ handle major: ] taprio num_tc tcs map P0 P1 P2 ... queues count1@…update and create new users in batch NAME newusers - update and create new users in batch SYNOPSIS newusers [ options ] [ file ] DESCRIPTION The newusers command reads a file (or t…PAM module to set the default security context NAME pam_selinux - PAM module to set the default security context SYNOPSIS pam_selinux.so [open] [close] [restore] [nottys] [debug] […create a new user or update default new user information NAME useradd - create a new user or update default new user information SYNOPSIS useradd [ options ] LOGIN useradd -D usera…configure memory NAME chmem - configure memory SYNOPSIS chmem [ -h] [ -V*] [ -v ] [ -e | -d ] [ SIZE | RANGE -b BLOCKRANGE ] [ -z ZONE ] DESCRIPTION The chmem command sets a partic…add or manipulate users or groups NAME adduser, addgroup - add or manipulate users or groups SYNOPSIS adduser [ --add-extra-groups ] [ --allow-all-names ] [ --allow-bad-names ] [ -…