NAME 7za – A file archiver with high compression ratio format SYNOPSIS 7za <command> [<switches>… ] <archive_name> [<file_names>… ] [<@listfiles>… ] DESCRIPTION 7-Zip is a file archiver supporting 7z (that implements LZMA compression algorithm featuring very high compression ratio), LZMA2, XZ, ZIP, Zip64, CAB, RAR (if the non-free p7zip-rar package is installed), ARJ, GZIP, BZIP2,…
NAME 7z – A file archiver with high compression ratio format SYNOPSIS 7z <command> [<switches>… ] <archive_name> [<file_names>… ] [<@listfiles>… ] DESCRIPTION 7-Zip is a file archiver supporting 7z (that implements LZMA compression algorithm featuring very high compression ratio), LZMA2, XZ, ZIP, Zip64, CAB, RAR (if the non-free p7zip-rar package is installed), ARJ, GZIP, BZIP2,…
NAME 411toppm – convert Sony Mavica .411 image to ppm SYNOPSIS 411toppm [-width width] [-height height] [411file] All options may be abbreviated to the shortest unique prefix. DESCRIPTION Reads a .411 file, such as from a Sony Mavic camera, and converts it to a PPM image as output. Output is to Standard Output. The originator…
2to3-2.7 – Python2 to Python3 converter Synopsis2to3 [options] file|dir … Options-h, –help show this help message and exit -d, –doctests_only Fix up doctests only -f FIX, –fix=FIX Each FIX specifies a transformation; default: all -j PROCESSES, –processes=PROCESSES Run 2to3 concurrently -x NOFIX, –nofix=NOFIX Prevent a transformation from being run -l, –list-fixes List available transformations -p,…
NAME listen – listen for connections on a socket SYNOPSIS #include <sys/socket.h> #include <sys/types.h> /* See NOTES */ int listen(int sockfd, int backlog); DESCRIPTION listen() marks the socket referred to by sockfd as a passive socket, that is, as a socket that will be used to accept incoming connection requests using accept(2). The sockfd argument…
NAME bind – bind a name to a socket SYNOPSIS #include <sys/socket.h> #include <sys/types.h> /* See NOTES */ int bind(int sockfd, const struct sockaddr *addr, socklen_t addrlen); DESCRIPTION When a socket is created with socket(2), it exists in a name space (address family) but has no address assigned to it. bind() assigns the address specified…
NAME connect – initiate a connection on a socket SYNOPSIS #include <sys/socket.h> #include <sys/types.h> /* See NOTES */ int connect(int sockfd, const struct sockaddr *addr, socklen_t addrlen); DESCRIPTION The connect() system call connects the socket referred to by the file descriptor sockfd to the address specified by addr. The addrlen argument specifies the size of…
NAME socket – create an endpoint for communication SYNOPSIS #include <sys/types.h> /* See NOTES */ #include <sys/socket.h> int socket(int domain, int type, int protocol); DESCRIPTION socket() creates an endpoint for communication and returns a file descriptor that refers to that endpoint. The file descriptor returned by a successful call will be the lowest-numbered file descriptor…
NAME select, pselect, FD_CLR, FD_ISSET, FD_SET, FD_ZERO – synchronous I/O multiplexing SYNOPSIS #include <sys/select.h> int select(int nfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, struct timeval *timeout); void FD_CLR(int fd, fd_set *set); int FD_ISSET(int fd, fd_set *set); void FD_SET(int fd, fd_set *set); void FD_ZERO(fd_set *set); int pselect(int nfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, const struct…
NAME getpid, getppid – get process identification SYNOPSIS #include <sys/types.h> #include <unistd.h> pid_t getpid(void); pid_t getppid(void); DESCRIPTION getpid() returns the process ID (PID) of the calling process. (This is often used by routines that generate unique temporary filenames.) getppid() returns the process ID of the parent of the calling process. This will be either the…
NAME chdir, fchdir – change working directory SYNOPSIS #include <unistd.h> int chdir(const char *path); int fchdir(int fd); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): fchdir(): _XOPEN_SOURCE >= 500 || /* Since glibc 2.12: */ _POSIX_C_SOURCE >= 200809L || /* Glibc up to and including 2.19: */ _BSD_SOURCE DESCRIPTION chdir() changes the current working directory of the calling process to the directory specified in path. fchdir() is…
NAME execve – execute program SYNOPSIS #include <unistd.h> int execve(const char *pathname, char *const argv[], char *const envp[]); DESCRIPTION execve() executes the program referred to by pathname. This causes the program that is currently being run by the calling process to be replaced with a new program, with newly initialized stack, heap, and (initialized and…
NAME chown – change file owner and group SYNOPSIS chown [,OPTION/]… [,OWNER/][,:/[,GROUP/]] ,FILE/… chown [,OPTION/]… ,–reference=RFILE FILE/… DESCRIPTION This manual page documents the GNU version of chown. chown changes the user and/or group ownership of each given file. If only an owner (a user name or numeric user ID) is given, that user is made…
NAME ln – make links between files SYNOPSIS ln [,OPTION/]… [,-T/] ,TARGET LINK_NAME/ ln [,OPTION/]… ,TARGET/ ln [,OPTION/]… ,TARGET/… ,DIRECTORY/ ln [,OPTION/]… ,-t DIRECTORY TARGET/… DESCRIPTION In the 1st form, create a link to TARGET with the name LINK_NAME. In the 2nd form, create a link to TARGET in the current directory. In the 3rd…
NAME du – estimate file space usage SYNOPSIS du [,OPTION/]… [,FILE/]… du [,OPTION/]… ,–files0-from=F/ DESCRIPTION Summarize disk usage of the set of FILEs, recursively for directories. Mandatory arguments to long options are mandatory for short options too. -0, –null end each output line with NUL, not newline -a, –all write counts for all files, not…
NAME top – display Linux processes SYNOPSIS top –hv|-bcEeHiOSs1 –d secs –n max –u|U user –p pids –o field –w [cols] The traditional switches `-‘ and whitespace are optional. DESCRIPTION The top program provides a dynamic real-time view of a running system. It can display system summary information as well as a list of processes…
NAME curl – transfer a URL SYNOPSIS curl [options / URLs] DESCRIPTION curl is a tool for transferring data from or to a server. It supports these protocols: DICT, FILE, FTP, FTPS, GOPHER, GOPHERS, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, MQTT, POP3, POP3S, RTMP, RTMPS, RTSP, SCP, SFTP, SMB, SMBS, SMTP, SMTPS, TELNET or TFTP….
NAME Wget – The non-interactive network downloader. SYNOPSIS wget [option]… [URL]… DESCRIPTION GNU Wget is a free utility for non-interactive download of files from the Web. It supports HTTP, HTTPS, and FTP protocols, as well as retrieval through HTTP proxies. Wget is non-interactive, meaning that it can work in the background, while the user is…
NAME scp – OpenSSH secure file copy SYNOPSIS scp [-346ABCOpqRrsTv [-c cipher ] ] [-D sftp_server_path ] [-F ssh_config ] [-i identity_file ] [-J destination ] [-l limit ] [-o ssh_option ] [-P port ] [-S program ] source … target DESCRIPTION scp copies files between hosts on a network. It uses ssh(1) for data…
NAME ssh – OpenSSH remote login client SYNOPSIS ssh [-46AaCfGgKkMNnqsTtVvXxYy [-B bind_interface ] ] [-b bind_address ] [-c cipher_spec ] [-D [bind_address : port ] ] [-E log_file ] [-e escape_char ] [-F configfile ] [-I pkcs11 ] [-i identity_file ] [-J destination ] [-L address ] [-l login_name ] [-m mac_spec ] [-O ctl_cmd…