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when commands fail, they often print error messages to stderr. previously, failures were quite hard to debug because tmux would hide stderr. before: ``` ; tmux run-shell 'echo oops >&2; exit 1' 'echo oops >&2; exit 1' returned 1 ``` after: ``` ; tmux run-shell 'echo oops >&2; exit 1' oops 'echo oops >&2; exit 1' returned 1 ```
Welcome to tmux! tmux is a terminal multiplexer: it enables a number of terminals to be created, accessed, and controlled from a single screen. tmux may be detached from a screen and continue running in the background, then later reattached. This release runs on OpenBSD, FreeBSD, NetBSD, Linux, macOS and Solaris. * Dependencies tmux depends on libevent 2.x, available from: https://github.com/libevent/libevent/releases/latest It also depends on ncurses, available from: https://invisible-mirror.net/archives/ncurses/ To build tmux, a C compiler (for example gcc or clang), make, pkg-config and a suitable yacc (yacc or bison) are needed. * Installation To build and install tmux from a release tarball, use: $ ./configure && make $ sudo make install tmux can use the utempter library to update utmp(5), if it is installed - run configure with --enable-utempter to enable this. To get and build the latest from version control - note that this requires autoconf, automake and pkg-config: $ git clone https://github.com/tmux/tmux.git $ cd tmux $ sh autogen.sh $ ./configure && make $ sudo make install * Contributing Bug reports, feature suggestions and especially code contributions are most welcome. Please send by email to: tmux-users@googlegroups.com Or open a GitHub issue or pull request. * Documentation For documentation on using tmux, see the tmux.1 manpage. View it from the source tree with: $ nroff -mdoc tmux.1|less A small example configuration is in example_tmux.conf. Other documentation is available in the wiki: https://github.com/tmux/tmux/wiki Also see the tmux FAQ at: https://github.com/tmux/tmux/wiki/FAQ A bash(1) completion file is at: https://github.com/imomaliev/tmux-bash-completion For debugging, run tmux with -v and -vv to generate server and client log files in the current directory. * Support The tmux mailing list for general discussion and bug reports is: https://groups.google.com/forum/#!forum/tmux-users Subscribe by sending an email to: tmux-users+subscribe@googlegroups.com * License This file and the CHANGES files are licensed under the ISC license. All other files have a license and copyright notice at their start.