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Top Forums UNIX for Dummies Questions & Answers Why Linux is not showing file in use ? Post 302559633 by pludi on Tuesday 27th of September 2011 06:15:30 PM
Old 09-27-2011
With the script as you've given it, the file is only in use as long as it takes to write one line to it, as on each output redirection the shell opens the file, writes, and closes it immediately afterwards.
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petitboot-twin(8)					    BSD System Manager's Manual 					 petitboot-twin(8)

NAME
petitboot-twin -- Petitboot twin bootloader UI SYNOPSIS
petitboot-twin [-d, --start-daemon] [-h, --help] [-l, --log log-file] [-V, --version] [-f, --fbdev] [-x, --x11] DESCRIPTION
petitboot-twin is a twin based interface to the Petitboot bootloader. Petitboot is a Linux kexec based bootloader that supports loading Linux kernel and initrd images from any device that can be mounted by Linux. It can also load images from the network using the HTTP, HTTPS, NFS, SFTP, and TFTP protocols. OPTIONS
-d, --start-daemon Start pb-discover, the petitboot dynamic device discovery daemon, if it has not been started. This option is mainly useful when run- ning petitboot as a stand-alone application. -h, --help Print a help message. -l, --log log-file Log messages to the file log-file. The default log is a file /var/log/petitboot-twin.log. New messages are appended to an existing log file. -V, --version Display the program version number. SEE ALSO
petitboot(8), pb-twin(8), pb-discover(8), pb-event(8) REPORTING BUGS
Send bug reports to Geoff Levand <geoff @ infradead.org> BSD
June 1, 2019 BSD
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