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03-18-2008
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Help with exec command and file descriptors II
Need to close files which descriptor number are larger than 9 in ksh.
'exec 10>&-' fails with 'ksh: 10: not found'. How do you specify file descriptors which occupies two or more digits in ksh script? Thanks, Masaki |
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01-03-2009
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At ksh, I can only close fd to 9 as your case.
But, I can do it by using Perl as the following test case. t1.c : open 10 files t2.pl : close fd from 3 t3.c : only wait a key to verify fds by using AIX 5.3 dbx's fd subcomamnd. At p2.pl use POSIX::close for ($fd=100; $fd > 2; $fd--) { # 100 is ok on my case. POSIX::close($fd) # execution error, but has effect. } exec "./t3" |
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