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Asked: 2017-04-19 01:18:37 +0800 CST

awk: match pattern that contain only forward slash

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For example, if i run df -h

Filesystem                  Size  Used Avail Use% Mounted on
udev                        985M     0  985M   0% /dev
tmpfs                       201M  9.1M  192M   5% /run
/dev/sdb3                    87G   26G   57G  31% /
tmpfs                      1003M   15M  989M   2% /dev/shm
tmpfs                       5.0M  4.0K  5.0M   1% /run/lock
tmpfs                      1003M     0 1003M   0% /sys/fs/cgroup

From its output if i want to print a line

/dev/sdb3                    87G   26G   57G  31% /

that contain root partition /.

Then How to do it with awk?

I do not want to use /dev/sdb3 in search pattern. In search pattern, use only /. I've tried answer posted on Stackoverflow but it did not work.

command-line

1 Answers

  1. Best Answer

    You should use plain df:

    df -h /

    However, in awk, since this is the last field, just compare directly:

    $ df -h | awk '$NF == "/"'
/dev/sda1        18G  7.7G  9.0G  47% /
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