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mount umount sudo cp ls eject rm cd fdisk lsblk cat ifup ifdown mv cd .. mkdir cat Command to check battery capacity - :~$ cat /sys/class/power_supply/BAT0/capacity Command to check whether swap is on or off - :~$ sudo swapon <swap partition name e.g. /dev/sda1> If this shows output as below line - swapon: /dev/sda5: swapon failed: Device or resource busy This means swap feature is active in OS. For more details on swap, kindly visit debian wiki link -> https://wiki.debian.org/Swap Command to zip a file - :~$ zip <output file name>.zip <file to be zipped>
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