3 Basic Commands and Simple Shell Scripts Once you have your first Red Hat Enterprise Linux rhel


openvt (1) - start a program on anew virtual



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Pablo Iranzo Gómez, Pedro Ibáñez Requena, Miguel Pérez Colino, Scott McCarty - Red Hat Enterprise Linux 9 Administration-Packt Publishing (2022) -chap 3 82 - 180
openvt (1) - start a program on anew virtual
terminal (VT).
scsi_start (8) - start one or more SCSI disks
setarch (8) - change reported architecture in new
program environment and set personalit...

Using system documentation resources
99
sg_reset (8) - sends SCSI device, target, bus or host
reset; or checks reset state
sg_rtpg (8) - send SCSI REPORT TARGET PORT GROUPS
command
sg_start (8) - send SCSI START STOP UNIT command
start, stop, load or eject medium
sg_stpg (8) - send SCSI SET TARGET PORT GROUPS command
systemd-notify (1) - Notify service manager about startup
completion and other daemon status c...
systemd-rc-local-generator (8) - Compatibility generator for
starting /etc/rc.local and /usr/sbin...
systemd.target (5) - Target unit configuration
tar (1) - an archiving utility
tar (5) - format of tape archive files
unicode_start (1) - put keyboard and console in unicode mode
As you can see, it matches not only tar but also start. This isn’t perfect, but it can provide helpful information related to tar, such as gpgtar.
man pages have sections. As you can see in the previous example, for tar, there are manual pages in two sections, one for the command-line utility (section 1), and one for the archiving format (section 5):
tar (1) - an archiving utility
tar (5) - format of tape archive files
We can access the page in section 5 to understand the format by running the following command:
[root@rhel-instance
]# man 5 tar

Now, we can seethe tar format page:
TAR(5) BSD File Formats
Manual TAR(5)
NAME
tar — format of tape archive files
DESCRIPTION
The tar archive format collects any number of files,

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