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• Operacja halt [options] w Linux Użycie file /var/log/wtmp ; if the system is in runlevel 0 or 6, stop all processes; otherwise, call shutdown -h komenda
• Operacja hdparm [options] [device] w Linux Użycie command can be used to tune hard drive performance; it is mostly used with IDE drives, but can also be used with SCSI drives komenda
• Operacja head [options] [files] w Linux Użycie Print the first few lines (default is 10) of one or more files . If files is missing or -, read from standard input. With more than one file, print a header for each file komenda
• Operacja hexdump [options] file w Linux Użycie Display specified file or input in hexadecimal, octal, decimal, or ASCII format. Option flags are used to specify the display format komenda
• Operacja host [options] name [server] w Linux Użycie Hosts may be IP addresses or hostnames; host converts IP addresses to hostnames by default and appends the local domain to hosts without a trailing dot. Default servers are komenda
• Operacja hostid w Linux Użycie Print the ID number in hexadecimal of the current host komenda
• Operacja hostname [option] [nameofhost] w Linux Użycie Set or display name of current host system. A privileged user can set the hostname with the nameofhost argument komenda
• Operacja htdigest [-c] filename realm username w Linux Użycie c option is used if you wish to create the file, and will overwrite any existing files rather than update them. The three arguments are the file you wish to use as the komenda
• Operacja hwclock [option] w Linux Użycie maintains change information in /etc/adjtime , which can be used to adjust the clock based on how much it drifts over time. hwclock replaces the clock command. The single-letter komenda

Co to znaczy w wiersz poleceń | Co robi komenda

Do czego służy komenda. Co robi wywołanie. Jak działa polecenie w Linux.