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Re: SHLVL is a random string (uninitialized string in C) when its true v
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From: |
Chet Ramey |
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Subject: |
Re: SHLVL is a random string (uninitialized string in C) when its true value is "1000" |
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Date: |
Thu, 17 Sep 2015 11:06:39 -0400 |
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User-agent: |
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:38.0) Gecko/20100101 Thunderbird/38.2.0 |
On 9/17/15 12:29 AM, ziyunfei wrote:
> $ SHLVL=998 bash -c 'echo $SHLVL'
> 999
> $ SHLVL=999 bash -c 'echo $SHLVL'
>
> $ SHLVL=999 bash -c 'echo -n "$SHLVL" | hexdump'
> 0b 01
> $ SHLVL=999 bash -c 'echo -n "$SHLVL" | hexdump'
> 0f 01
> $ SHLVL=999 bash -c 'echo -n "$SHLVL" | hexdump'
> 04 01
> $ SHLVL=1000 bash -c 'echo $SHLVL'
> bash: warning: shell level (1001) too high, resetting to 1
> 1
Thanks for the report. That bug is old enough to vote in the US.
Chet
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU chet@case.edu http://cnswww.cns.cwru.edu/~chet/