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56 lines
1.5 KiB
Bash
Executable file
56 lines
1.5 KiB
Bash
Executable file
#!/usr/bin/env sh
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# Description: Toggle mount status of a device using pmount
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# If the device is not mounted, it will be mounted.
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# If the device is mounted, it will be unmounted and powered down.
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#
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# Dependencies: lsblk, pmount
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#
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# Usage: Runs `lsblk` on 'l', exits on 'Return`.
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#
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# Notes:
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# - The script uses Linux-specific lsblk to list block devices. Alternatives:
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# macOS: "diskutil list"
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# BSD: "geom disk list"
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# - The script uses udisksctl (from udisks2) to power down devices. This is also Linux-specific.
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# Users on non-Linux platforms can comment it and use an alterntive to power-down disks.
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#
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# Shell: POSIX compliant
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# Author: Arun Prakash Jana
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prompt="device name [e.g. sdXn] ('l'ist, 'q'uit): "
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lsblk
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printf "\nEnsure you aren't still in the mounted device.\n"
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printf "%s" "$prompt"
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read -r dev
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while [ -n "$dev" ]
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do
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if [ "$dev" = "l" ]; then
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lsblk
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elif [ "$dev" = "q" ]; then
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exit
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else
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if grep -qs "$dev " /proc/mounts; then
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sync
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if pumount "$dev"
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then
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echo "$dev" unmounted.
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if udisksctl power-off -b /dev/"$dev"
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then
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echo "$dev" ejected.
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fi
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fi
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else
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pmount "$dev"
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echo "$dev" mounted to "$(lsblk -n /dev/"$dev" | rev | cut -d' ' -f1 | rev)".
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fi
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fi
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echo
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printf "%s" "$prompt"
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read -r dev
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done
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