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whereis(1) -- locate programs
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The whereis utility checks the standard binary directories for the specified name, printing out the paths of any it finds that are executable by the user. The path searched is the string returned by t... |
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which(1) -- locate a program file (or files) in the path
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which takes a list of names and looks for the files which would be executed had these names been given as commands. Each argument is searched for along the user's path. If the -a flag is given, which... |
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who(1) -- display who is logged in
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The who utility displays a list of all users currently logged on, showing for each user the login name, tty name, the date and time of login, and hostname if not local. The options are as follows: -H ... |
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whoami(1) -- display effective user ID
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The whoami utility has been obsoleted by the id(1) utility, and is equivalent to id -un. The command id -p is suggested for normal interactive use. The whoami utility displays your effective user ID a... |
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whois(1) -- Internet domain name and network number directory service
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The whois utility looks up records in the databases maintained by several Network Information Centers (NICs). The options are as follows: -6 Use the IPv6 Resource Center (6bone) database. It contains ... |
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window(1) -- window environment
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window implements a window environment on ASCII terminals. A window is a rectangular portion of the physical terminal screen associated with a set of processes. Its size and position can be changed by... |
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write(1) -- send a message to another user
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write allows you to communicate with other users, by copying lines from your terminal to theirs. When you run the write command, the user you are writing to gets a message of the form: Message from yo... |
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x99token(1) -- X9.9 software token calculator
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The x99token program is a simple X9.9 software token calculator. The token is initialized by using the -i option. In this mode, x99token requests a key. The key consists of 8 bytes encoded in either h... |
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xargs(1) -- construct argument list(s) and execute utility
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The xargs utility reads space, tab, newline, and end-of-file delimited strings from the standard input and executes the specified utility with the strings as arguments. Any arguments specified on the ... |
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xstr(1) -- extract strings from C programs to implement shared strings
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xstr maintains a file strings into which strings in component parts of a large program are hashed. These strings are replaced with references to this common area. This serves to implement shared const... |
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xsubpp(1) -- compiler to convert Perl XS code into C code
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This compiler is typically run by the makefiles created by ExtUtils::MakeMaker. xsubpp will compile XS code into C code by embedding the constructs necessary to let C functions manipulate Perl values ... |
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yacc(1) -- an LALR(1) parser generator
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yacc reads the grammar specification in the file filename and generates an LR(1) parser for it. The parsers consist of a set of LALR(1) parsing tables and a driver routine written in the C programming... |
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yes(1) -- be repetitively affirmative
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yes outputs expletive, or, by default, ``y'', forever. |
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ypcat(1) -- print the values of all keys in a YP database
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ypcat prints out the values of all keys from the YP database specified by mapname, which may be a map name or a map nickname. The options are as follows: -d domainname Specify a domain other than the ... |
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ypmatch(1) -- print the values of one or more keys in a YP database
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ypmatch prints out the values of one or more keys from the YP database specified by mapname, which may be a map name or a map nickname. The options are as follows: -d domainname Specify a domain other... |
