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Useful UNIX utilities

Terminal

• ksh build in
• screen
• bash
• tmux - tmux is replacing screen
• MacOS trash - use trash bin from command line
• ksh
• nano - useful shell based texteditor if you don’t prefer vi.
• lsof - check open file and network connections
• hotplugd
• du & df - Disc usage utilities
• env
• mail
• entr - file changed detection
• smenu - tool for making interactive shell menus
• TheSilverSearcher
• source command - execute in current context

Performance

• iperf - Performance benchmark
• renice - Change process scheduling priority
• top - also see ports ntop, iftop and pftop.
• GoAccess - Apache/NGINX log file analyzer using ncurses.

File Synchronization

• rsync - One way file system synchronization
• unison - Two way file system synchronization
• CVSup - File sychronization specifically targetting CVS repositories.
• gitbak - backup system based on git
• Flyback - also available as port. Gui on top of rsync.
• simple-mtpfs

Text processing

• PortableScripts
• awk - Text processing utility
• sed - Stream editor
• tar - Archiving utility
• grep - Text filtering utility
• cut - cut line output
• bc - Shell math
• tr - Translate characters
• ruby - Parse with Ruby
• head/tail - print beginning and end of stream
• TextEditors
• find
• grap - Graph type setting tool which can be used in TeX and groff. grap port exists. See Teach you children groff for inspiration.
• howl - Capable text editor written in Lua

Programming

• fossil

Server monitoring

• ServerMonitoring
• Puppet - Data center automation written in Ruby

Version Control

• Git Explanation
• Mercurial - hg version control

Multimedia

• Graphwiz dot
• OpenBSDAudio
• Lives - Video Editing. Coming port for OpenBSD. See article in Linux Journal.

Network

• node.js
• SpamBayes
• Unbound DNS
• ssh
• coherence
• opera
• http://www.opensips.org
• rtorrent
• netcat - nc is the swiss army knife of TCP/UDP networking
• mdns - Multicast DNS to replace Avahi or Bonjour written for OpenBSD. See openmdns port.
• arp-scan
• Failover with trunk(4)

Base System

• ldd - binary program library dependence
• qemu
• disklabel - can be used to find used USB partitions
• sysmerge
• opensmtpd

Finding ports

To do keyword search for ports do the following. Note that ports source must be installed first.

cd /usr/ports
make search key=rsnapshot

A great source for packages/ports are found on openports.se.

Another way is to install pkg_mgr which is a curses based packages manager which use normal pkg_* tools.

• pkg_mgr homepage
• pkg_mgr on openports.se
• pkg_mgr featured on undeadly.org

Installing ports behind a proxy/firewall

If you are behind a proxy/firewall it is often neccesary to proxy ftp traffic through http and proxy server. Set the ftp_proxy environment variable according to your company proxy settings. Then you can set the PKG_PATH as usual. ftp will automatically pass ftp traffic using http through proxy server.

export ftp_proxy= http://<proxy_user>:<proxy_pw>@proxy.your.domain.com:<port>/
export PKG_PATH=ftp://ftp.openbsd.host.com/5.0/packages/i386

Package info

Install message (if any) can be displayed using -M flag.

pkg_info -M mysql-server

There might also be an install readme as part of the package.

ls /usr/local/share/doc/pkg-readmes/
mysql-server-5.1.60