Vim: How to use unix command output as a filename to save to?

Question

I want to use unix command on save. Command return file path. Like below:

pseudo code
:w !command

# I name this command 'mami'
$ MAMI_DIR=~/work echo $MAMI_DIR/$(date "+%Y-%m-%d-%H-%M-%S").txt
#=> /Users/sane/work/2012-09-13-01-58-01.txt

https://gist.github.com/3713132

# my expectation
:w !mami
#=> to save /Users/sane/work/2012-09-13-01-58-01.txt
# or
:mami
#=> to save /Users/sane/work/2012-09-13-01-58-01.txt

But my exec is only return string or errors:

:w !mami
#=> This show only file path, /Users/sane/work/2012-09-13-01-58-01.txt and said "press key"
:w !$(MAMI_DIR=~/work echo $MAMI_DIR/$(date "+%Y-%m-%d-%H-%M-%S").txt)
#=> This return value 127

How do I achieve this? Is this the area of vim script? Please give me suggestion.

What you were requesting with the title (before I fixed it) is autocmd BufWritePost {pattern} !mami: running command after you save file, not running command to get filename to save to. Be careful with wording. — ZyX
– ZyX, Commented Sep 13, 2012 at 17:57

Will Palmer · Accepted Answer · 2012-09-29 11:16:15Z

4

You can do

:w `mami`

to achieve what you want. What you were actually doing was piping output to the mami command.

edited Sep 29, 2012 at 11:16

Will Palmer

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answered Sep 13, 2012 at 17:54

ZyX

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1 Comment

Matt - sanemat Over a year ago

I want separate solutions to get filename to save to, and actually save file, so this is better. thanks.

Michael Krelin - hacker · Accepted Answer · 2012-09-13 17:49:58Z

0

Just make mami do it:

MAMI_DIR=~/work cat >$MAMI_DIR/$(date "+%Y-%m-%d-%H-%M-%S").txt

and then w !mami

answered Sep 13, 2012 at 17:49

Michael Krelin - hacker

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Comments

Will Palmer · Accepted Answer · 2012-09-13 17:52:54Z

0

You can do this with backticks:

:w `mami`

answered Sep 13, 2012 at 17:52

Will Palmer

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