Am 27.02.22 um 04:33 schrieb Robert Nichols:
Does anything for CentOS 8 provide the function of the fstab-decode utility? Entries in /proc/mounts and /etc/fstab can have escape sequences for certain special characters, and I need to decode that.

Preface: Never heard of fstab-decode before. Researching the command made me really wonder why it was invented. Especially since I have never seen an /etc/fstab with "escape sequences" or "special characters" since at least 1990 (If I am wrong: Please show me such a fstab file).

So why not just use:

        umount $(awk '$3 == "vfat" {print $2}' /etc/fstab)

instead of the seemingly canonical use of fstab-decode

        fstab-decode umount $(awk '$3 == "vfat" { print $2 }' /etc/fstab)

Myself, I would use the super-standard xargs, that can even take care of the case that there might be no matching lines, that is:

    awk '$3 == "vfat" {print $2}' /etc/fstab | xargs -r umount

And if there REALLY are files around with "special characters" I would do it like this:

    awk '$3 == "vfat" {ORS="\0" ; print $2}' /etc/fstab | xargs -0 -r umount

I consider this a standard idiom usable for many more use cases than just parsing /etc/fstab....


Peter

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