Useful tools on Ubuntu (L)

ubuntu_logo_81x81This post covers the utilities those start with L. Part of the series.

  1. labyrinth (GNOME Desktop Environment) : A lightweight mind mapper.
  2. lastfm (Multimedia) : Music player for Last.fm personalized radio.
  3. latrace (Utilities) : Displays dynamic library calls of a program using the LD_AUDIT feature of newer glibc versions. Similar to ltrace. It is also capable to measure and display various statistics of dynamic calls. If a config file is provided, latrace will display function arguments with detailed output for structures.
  4. launchtool (System Administration) : Runs a user-supplied command and can supervise its execution in many ways, such as controlling its environment, blocking signals, logging its output, changing user and group permissions, limiting resource usage, restarting it if it fails, running it continuously and turn it into a daemon.
  5. launchy (Miscellaneous – Graphical) : Type and press enter to launch programs.
  6. lbzip2 (Utilities) : Independent, multi-threaded implementation of bzip2. It is commonly the fastest SMP (and uniprocessor) bzip2 compressor and decompressor. Integrates nicely with tar.
  7. lcrack (Utilities) : Lepton’s Crack is a generic password cracker, easily customizable with a simple plug-in system. It can perform a dictionary-based (wordlist) attack, as well as a brute-force (incremental) password scan.
  8. lcrt (Networking) : A remote login tool. Just like ssh or telnet, but it has a GUI and can manage many connections. User can use it to save connection information such as hostname, username and, optionally, password, and auto login next time. lcrt also can clone a connected session, so user can open many connections quickly.
  9. ldmtool (Cross Platform) : A tool for managing Microsoft Windows dynamic disks.
  10. le (Editors) : LE has many block operations with stream and rectangular blocks, can edit both unix and dos style files (LF/CRLF), is binary clean, has hex mode (can switch on the fly), can edit text with multi-byte character encoding, has full undo/redo, can edit files and mmap-able devices in mmap shared mode (only replace), has tunable syntax highlighting, tunable color scheme (can use default colors), tunable key map. It is slightly similar to Norton Editor, but has more features.
  11. leafpad (Editors) : Fast and lightweight text editor with zero feature bloat. Similar to Notepad.
  12. leaktracer (Development) : Traces calls to new and delete, and reports inconsistencies in the C++-level memory-management.
  13. lekhonee-gnome (Networking) : Desktop client for publishing to WordPress blogs.
  14. lernid (Python Programming Language) : Provides an interface for joining in Ubuntu learning events such as Ubuntu Open Week and Ubuntu Developer Week.
  15. less (Word Processing) : A file pager (a memory-efficient utility for displaying text one screenful at a time) similar to more.
  16. levee (Editors) : Extremely small screen oriented editor based on the Unix editor “vi”. It provides a terse, powerful way to enter and edit text. This programs dates back to 1980’s; at the dawn of personal computing.
  17. lfhex (Editors) : A graphical application for viewing and editing files in hex, octal, binary, or ascii text. The main strength of lfhex is its ability to work with files much larger than system memory or address space.
  18. lfm (Utilities) : A simple but powerful curses-based file manager for the UNIX console. Similar to Midnight Commander.
  19. lftp (Networking) : A file retrieving tool that supports FTP, HTTP, FISH, SFTP, HTTPS, FTPS and BitTorrent protocols under both IPv4 and IPv6. Lftp has an amazing set of features, while preserving its interface as simple and easy as possible. Some of its powerful features are parallel transfers, reliability and ability to perform tasks in background. It will reconnect and reget the file being transferred if the connection broke. You can start a transfer in background and continue browsing on the ftp site. It does this all in one process.
  20. licenseutils (Development) : Put copyright and license notices at the head of source code files.
  21. lifeograph (GNOME Desktop Environment) : An off-line and private journal and note taking application for one’s self evaluation of his/her own life.
  22. liferea (GNOME Desktop Environment) : News aggregator for online news feeds.
  23. lighttpd (World Wide Web) : Fast and secure webserver with minimal memory footprint.
  24. lilypond (TeX Authoring) : A music engraving program, devoted to producing the highest-quality sheet music possible.
  25. linkchecker(-gui)/linklint (World Wide Web) : Detect broken links in websites.
  26. links2 (Networking) : Web browser running in both graphics and text mode.
  27. linuxdcpp (Networking) : Port of the Windows file-sharing program, DC++.
  28. linuxvnc (Miscellaneous – Graphical) : VNC server to allow remote access to a tty (console session).
  29. lives (Graphics) : a Video Editing system allowing both novice and advanced users to edit and create video straight away.
  30. lnav (System Administration) : The log file navigator is an enhanced log file viewer that takes advantage of any semantic information that can be gleaned from the files being viewed, such as timestamps and log levels. Using this extra semantic information, lnav can do things like interleaving messages from different files, generate histograms of messages over time, and providing hotkeys for navigating through the file.
  31. loadwatch (Utilities) : Run a program using only idle cycles of the CPU.
  32. localepurge (System Administration) : Reclaim disk space by removing unneeded localization files.
  33. locate (Utilities) : updatedb generates an index of files and directories. GNU locate can be used to quickly query this index.
  34. logcheck (System Administration) : mails anomalies in the system logfiles to the administrator.
  35. logisim (JAVA Programming Language) : Graphical tool for designing and simulating logic circuits. Logisim can simulate entire CPUs for educational purposes.
  36. logkeys (System Administration) : Keylogger for GNU/Linux systems.
  37. logrotate (System Administration) : Designed to simplify the administration of log files on a system which generates a lot of log files. Logrotate allows for the automatic rotation compression, removal and mailing of log files. Logrotate can be set to handle a log file daily, weekly, monthly or when the log file gets to a certain size. Normally, logrotate runs as a daily cron job.
  38. lookup (Word Processing) : Interactive utility to search text files quickly. It provides fuzzy searching, regular expressions, filtering, automatic modifications, smart word-preference mode.
  39. lpe (Editors) : Lightweight Programmer’s Editor.
  40. lshell (Shells) : Restricts a user’s shell environment to limited sets of commands.
  41. lshw (Utilities) : A small tool to provide detailed information on the hardware configuration of the machine.
  42. luckybackup (Utilities) : rsync-based GUI data backup utility.
  43. lurker (Email) : an archiver which can handle extremely large amounts of email. It is fast, intuitive, and customizable.
  44. lv (Word Processing) : A powerful file viewer like less. lv can decode and encode multilingual streams through many coding systems: ISO-8859, ISO-2022, EUC, SJIS, Big5, HZ, Unicode.
  45. lxsplit (Utilities) : Split and join files without compression. It is fully compatible with the HJSplit utility.
  46. lynis (Utilities) : Security auditing tool for Unix based systems.
  47. lynx-cur (World Wide Web) : A fully-featured World Wide Web client for users running cursor-addressable, character-cell display devices.

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