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authorLuke Shumaker <lukeshu@parabola.nu>2017-02-06 02:55:30 -0500
committerLuke Shumaker <lukeshu@parabola.nu>2017-02-06 03:10:11 -0500
commit09bc36a930319d1287c41b78b24acfb36b0a8715 (patch)
treeb5835925ca7e38c9810c26e02f0ec5b29bea41f5 /archco.in
parent76dec8507e2e767db07f967644ed8958f85cd5a2 (diff)
lib/common.sh: add 'lock_close'; use it as appropriate.
`lock_close FD` is easier to remember than 'exec FD>&-`; and is especially easier if FD is a variable (though that isn't actually taken advantage of here). This uses Bash 4.1+ `exec {var}>&-`, rather than the clunkier `eval exec "$var>&-"` that was necessary in older versions of Bash. Thanks to Dave Reisner for pointing this new bit of syntax out to me the last time I submitted this (back in 2014, 4.1 had just come out).
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