contrib/rootfs-builder: Use $(cat rootfs-files) #606
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The previous $(< rootfs-files) is a Bashism that's not part of POSIX command substitution [1]. For Bash, the $(< ...) form is slightly faster (no need to exec cat), but not everyone uses Bash. [1]: http://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#tag_18_06_03 Signed-off-by: W. Trevor King <wking@tremily.us>
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It solves the problem. But I'm still not sure why the original script failed. |
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LGTM |
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The previous
is a Bashism that's not part of POSIX command substitution. For Bash, the
$(< …)form is slightly faster (no need to execcat), but not everyone uses Bash.@liangchenye, I bet this is what was happening to you.