| lsblk |
Lists out all the storage blocks, which includes disk partitions and optical drives. Details include the total size of the partition/block and the mount point if any. |
https://unix.stackexchange.com/questions/4561/how-do-i-find-out-what-hard-disks-are-in-the-system |
| diskutil list |
mac tool to list disks |
|
| df -h |
Df is not a partitioning utility, but prints out details about only mounted file systems. The list generated by df even includes file systems that are not real disk partitions. |
http://www.binarytides.com/linux-command-check-disk-partitions/ |
| du -h /dev/root |
The du(i.e.,disk usage)command reports the sizes of directory treesinclusive of all of their contents and the sizes of individualfiles. This makes it useful for tracking downspace hogs, i.e.,directoriesand files that consume large or excessive amounts of space on ahard disk drive(HDD) or otherstoragemedia. |
http://www.linfo.org/du.html |
| du -k ~/Dropbox/* | awk '$1 > 500000' |
find folders over 500mb |
|
| useradd -m |
add a user with home folder |
|
| passwd |
manage passwords |
|
| ls -la |
list files |
|
| ls -lt |
list files most recently modified DESC |
|
| less /etc/passwd |
list users |
https://www.digitalocean.com/community/tutorials/how-to-view-system-users-in-linux-on-ubuntu |
| less /etc/group |
list groups |
https://www.digitalocean.com/community/tutorials/how-to-view-system-users-in-linux-on-ubuntu |
| w |
who |
https://www.digitalocean.com/community/tutorials/how-to-view-system-users-in-linux-on-ubuntu |
| uname -a |
display kernel version |
|
| cat /proc/version |
see kernel and gcc version |
|
| fdisk -l | grep Disk |
The fdisk command is partition table manipulator for Linux. But it can be used to display total hard disk size |
https://www.cyberciti.biz/faq/howto-find-out-or-learn-harddisk-size-in-linux-or-unix/ |
| fdisk /dev/mmcblk0 |
open fdisk to change partition |
https://www.safaribooksonline.com/library/view/penetration-testing-with/9781787126138/ch01s06.html |
| parted /dev/mmcblk0 |
partition manager for mmcblk0 partition |
https://www.safaribooksonline.com/library/view/penetration-testing-with/9781787126138/ch01s06.html |
| resize2fs /dev/mmcblk0p2 |
resize partition |
https://www.safaribooksonline.com/library/view/penetration-testing-with/9781787126138/ch01s06.html |
| tar -xzf file.tar.gz |
extract tar |
|
| ip route show 0.0.0.0/0 dev eth0 | cut -d -f3 |
find gateway ip |
https://serverfault.com/questions/31170/how-to-find-the-gateway-ip-address-in-linux |
| $(ip route | grep default | cut -d ' ' -f 3) |
find gateway ip for default |
|
| hostname -i |
find ip address for host |
|
| vmstat |
vm stats such as disk, memory, etc |
|
| free -m |
show free memory |
|
| uptime |
machine up time, users, avg load |
|
| who |
who is logged on |
alias: w |
| ps aux | grep ngrok |
find app and filter by name 'ngrok' |
|
| ssh-keygen -R {hostname} |
remove {hostname} from known hosts |
https://www.cyberciti.biz/faq/mac-os-x-remove-known-host/ |
| jps -lvm |
get startup params of jvm |
|
