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• Operacja tload [options] [tty] w Linux Użycie Display system load average in graph format. If tty is specified, print it to that terminal komenda
• Operacja tac [options] [file] w Linux Użycie output. Without a filename or with - , it reads from standard input. By default, tac reverses the order of the lines, printing the last line first komenda
• Operacja time [options] command [arguments] w Linux Użycie Note that there is also a shell time command, so you might need to specify the full path, usually /usr/bin/time , to run this version of time . time displays its results on komenda
• Operacja tail [options] [files] w Linux Użycie on standard output. If more than one file is specified, the output includes a header at the beginning of each file: = =>filename <= = For options that take the number of bytes komenda
• Operacja tailf file w Linux Użycie similar to tail -f , but it does nothing when the file is not growing. Useful for following a logfile, particularly on a laptop when you want to conserve the battery power komenda
• Operacja talk person [ttyname] w Linux Użycie machine or user@host on another host. To talk to a user who is logged in more than once, use ttyname to indicate the appropriate terminal name. Once communication has been komenda
• Operacja talkd [options] w Linux Użycie somebody else wants to initiate a conversation. A talk client initiates a rendezvous by sending a CTL_MSG of type LOOK_UP to the server. This causes the server to search its komenda
• Operacja tar [options] [tarfile] [other-files] w Linux Użycie directories, tar acts on the entire subtree. Options need not be preceded by - (though they may be). The exception to this rule is when you are using a long-style option (such as komenda
• Operacja taskset [options] [mask |list] [pid |command [args] ] w Linux Użycie existing process, given its PID, or to run a new a process, given its command name, with a specified affinity mask. The Linux scheduler will then honor the given affinity mask komenda
• Operacja tcpd w Linux Użycie ftp , finger , exec , rlogin ). Provide checking and logging services; then pass the request to the appropriate daemon komenda
• Operacja tcpdump [options] [expression] w Linux Użycie match expression . The command continues to capture packets until it receives a SIGTERM or SIGINT signal (usually generated by typing the interrupt character control-C ). When komenda
• Operacja tcpslice [options] [start [end] ] files w Linux Użycie created by tcpdump -w . Based on timestamps, extract portions of or piece together files. Display all packets between the given start and end times. tcpslice understands most time komenda
• Operacja tee [options] files w Linux Użycie Accept output from another command and send it both to standard output and to files (like a T or fork in the road komenda
• Operacja telinit [option] [runlevel] w Linux Użycie System administration command. Signal init to change the system's runlevel. telinit is actually just a link to init , the ancestor of all processes komenda
• Operacja telnet [options] [host [port] ] w Linux Użycie another host using the Telnet protocol. If telnet is invoked without host , it enters command mode, indicated by its prompt, telnet> , and accepts and executes commands. Type ? at komenda
• Operacja telnetd [options] w Linux Użycie server for requests to connect to the Telnet port (port 23 by default). telnetd allocates a pseudo-terminal device for a client, thereby creating a login process that has the komenda
• Operacja test expression [expression] w Linux Użycie otherwise, return a nonzero exit status. In shell scripts, you can use the alternate form [expression ] . This command is generally used with conditional constructs in shell komenda
• Operacja tftp [options] [host [port] ] [-c command] w Linux Użycie users to transfer files to and from a remote machine. The remote host may be specified, and optionally the port , in which case tftp uses host as the default host for future komenda
• Operacja in.tftpd [options] [directories] w Linux Użycie normally started by inetd and operates at the port indicated in the tftp Internet service description in /etc/services . Only publicly readable files may be accessed. By default komenda
• Operacja tmpwatch [options] hours directory w Linux Użycie in directory with access times older than hours . Specify the directory as an absolute path. This command is usually invoked by cron to remove old files in the /tmp directory komenda
• Operacja top [options] w Linux Użycie processes currently running. You do not need to include a - before options. See ps for explanations of the field descriptors komenda
• Operacja touch [options] files w Linux Użycie to the current time and date. touch is useful in forcing other commands to handle files a certain way; for example, the operation of make , and sometimes find , relies on a file komenda
• Operacja tr [options] [string1 [string2] ] w Linux Użycie Translate characters. Copy standard input to standard output, substituting characters from string1 to string2 , or deleting characters in string1 komenda
• Operacja tracepath host [port] w Linux Użycie MTU.) A simplified version of traceroute without options meant for use by unprivileged users. If specified, it will use port to send UDP probe packets. host is the destination komenda
• Operacja traceroute [options] host [packetsize] w Linux Użycie attempts tracing by launching UDP probe packets with a small TTL (time-to-live), then listening for an ICMP time exceeded reply from a gateway. host is the destination hostname or komenda
• Operacja troff w Linux Użycie See groff komenda
• Operacja true w Linux Użycie A null command that returns a successful (0) exit status. See also false komenda
• Operacja tset [options] [terminal] reset [options] [terminal] w Linux Użycie first from the value of terminal , the value of the TERM environment variable, or the default terminal type. See also the reset command komenda
• Operacja tsort [option] [file] w Linux Użycie Multiple strings on a line are separated by spaces, where each line indicates a partial ordering. The fully ordered results are written to standard output. See the tsort info page komenda
• Operacja tty [options] w Linux Użycie Print the filename of the terminal connected to standard input komenda
• Operacja tune2fs [options] device w Linux Użycie Filesystem by adjusting various parameters. You must specify the device on which the filesystem resides; it must not be mounted read/write when you change its parameters komenda
• Operacja tunelp device [options] w Linux Użycie System administration command. Control a line printer's device parameters. Without options, print information about device(s komenda

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