Bash：检测所有磁盘并显示可用空间
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Bash: Detect all disks and show the free space
提问by Citizen SP
I'm running the following command to get the available space on my HHD. In this case I know the device (/dev/disk0s2).
我正在运行以下命令来获取我的 HHD 上的可用空间。在这种情况下，我知道设备 (/dev/disk0s2)。
I'm wondering how to first detect all the HDD's and then run the df command below to show the available disk space of all HDD's.
我想知道如何首先检测所有硬盘，然后运行下面的 df 命令来显示所有硬盘的可用磁盘空间。
$ df -h
Filesystem Size Used Avail Capacity Mounted on
/dev/disk0s2 112Gi 58Gi 54Gi 52% /
/dev/disk0s3 800Gi 400Gi 400Gi 50% /
df -h | awk '=="/dev/disk0s2"{print }'
Result: 54Gi
结果：54Gi
Result I need: disk0s2: 54Gi, disk0s3: 400Gi, etc....
结果我需要：disk0s2：54Gi，disk0s3：400Gi，等等......
回答by choroba
Something like this?
像这样的东西？
df -h | tail -n+2 | while read fs size used rest ; do
if [[ $used ]] ; then
echo $fs $used
fi
done
