From: Ray Andrews <rayandrews@eastlink.ca>
To: Zsh Users <zsh-users@zsh.org>
Subject: the splits
Date: Tue, 21 May 2024 10:42:24 -0700 [thread overview]
Message-ID: <75784205-3d78-4dd8-8474-e2eb48598307@eastlink.ca> (raw)
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A function of mine might need to unmount someting. If there's a problem
I try to be helpful:
umount -v "$mountpoint" ||
{
# Helpful diagnostics if partition won't unmount:
echo "\nCan't unmount $mountpoint. Is a terminal logged on? Or is
it one of these programs:?\n(Please wait or press '^C' to quit.)"
abc=$(lsof | grep $mountpoint)
abc=( ${(f)abc} )
for def in $abc[@]; do ghi=( ${=def} ); print --
"$ghi[1]\t$ghi[-1]\n"; done
return
}
Typical run:
% mnt ,U sda
Unmounting partitions ...
umount: /mnt/sda/1: target is busy.
Can't unmount /mnt/sda/1. Is a terminal logged on? Or is it one of
these programs:?
(Please wait or press '^C' to quit.)
zsh /mnt/sda/1/EFI/BOOT
geany /mnt/sda/1/EFI/BOOT
geany /mnt/sda/1/EFI/BOOT
geany /mnt/sda/1/EFI/BOOT
----------------------------------------------------
... works fine but I'll bet:
abc=$(lsof | grep $mountpoint)
abc=( ${(f)abc} )
for def in $abc[@]; do ghi=( ${=def} ); print -- "$ghi[1]\t$ghi[-1]\n"; done
... is belabored. Can that be streamlined? As always my splitting is
a problem. I need to process line by line, but then word by word so as
to grab just the first and last words from 'lsof' output. I'll bet
Roman can do all of the above in 20 characters.
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next reply other threads:[~2024-05-21 17:43 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-21 17:42 Ray Andrews [this message]
2024-05-22 1:48 ` Mark J. Reed
2024-05-22 2:21 ` Ray Andrews
2024-05-22 5:56 ` Roman Perepelitsa
2024-05-22 19:25 ` Ray Andrews
2024-05-22 20:41 ` Lawrence Velázquez
2024-05-22 21:36 ` Ray Andrews
2024-05-23 0:04 ` Lawrence Velázquez
2024-05-23 0:30 ` Ray Andrews
2024-05-23 2:31 ` Mark J. Reed
2024-05-23 12:58 ` Ray Andrews
2024-05-22 5:57 ` Jim
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