hwinfo
display detailed information about hardware resources
dmidecode
display system information for current devices
ispci
display information for current devices attached to specific busses
lsusb
display information about devices attached to a specific busses
lscpu
display CPU information
lsmem
display information about memory blocks
ps
display process status
sar
display system usage reports
nohup
prevent a process from ending when the user logs off
mkswap
create swap space on a storage partition
swapon
active the swap partition on a specific device
swapoff
deactivate the swap partition on a specific device
free
display the quantity of free or unused memory
vmstat
display virtual memory usage
modinfo
display information about particular kernel module
insmod
install a module into the current running kernel
rmmod
remove a module from the currently running kernel
modprobe
add or remove modules from kernel
depmod
build the modules, dep file by aggregating all instances of symbols being exported and used
sysctl
view or set kernel parameters at runtime
dmesg
print any messages that have been sent to the kernels message buffer and after system reboot
systemctl
manage startup options
service
manage enabling and starting services under SysVinit
chkconfig
control services in each runlevel – start or stop services during system startup
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Basic Linux Commands8
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Administering Users + Groups14
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Permissions Configuration8
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File Management19
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Authoring Text Files5
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Software Management6
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Administering Storage17
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Managing Devices, Processes, Memory and Kernel30
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Network Setting Configuration34
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Script Implementation8
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IAC Command2
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Managing Containers8
