Some Unix-based implementations ( CLISP, SBCL ) can be used as a scripting language ; that is, invoked by the system transparently in the way that a Perl or Unix shell interpreter is.

Some Unix programmers argue that traditional command-line POSIX tools constitute a complete development environment, an IDE, though one with a different style of interface and under the Unix environment.

Some early examples of computer markup languages available outside the publishing industry can be found in typesetting tools on Unix systems such as troff and nroff.

( Some legacy operating systems, including early versions of Unix and Windows, limited passwords to an 8 character maximum, reducing security.

Some operating systems such as early versions of Unix did not support attaching debuggers to running processes, so core dumps were necessary to run a debugger on a process's memory contents.

Some Unix shells use the ampersand as a metacharacter:

Some Unix shells, like the POSIX standard shell, use the ampersand to execute a process in the background and to duplicate file descriptors.

Some Unix as well as Linux distributions use symbolic links extensively in an effort to reorder the file system hierarchy.

Some Usenet newsreaders, especially in the Unix world, have tried to make it easier to find interesting postings and filter useless ones.

Some early Unix systems at Bell Labs used GCOS machines for print spooling and various other services.

Some operating environments for programming purposes are referred as programming environments ; e. g., the " UNIX programming environment " for a Unix shell with its look and feel and functionality.

Some Unix variants, such as AT & T UNIX System V Release 3. 0 include the related < tt > setname </ tt > program, used to change the values that uname reports.

Some platforms provide library calls which allow run-time dynamic allocation from the C stack rather than the heap ( e. g. Unix, Microsoft Windows CRTL's ).

Some versions of these later Intel-based machines ran Windows NT, while higher-end machines ran the company's flavor of Unix, DG / UX.

Some versions of Unix use a relatively expensive implementation of the crypt library function for hashing an 8-character password into an 11-character string.

Some of the important developments made at SRC include the Modula-3 programming language ; the snoopy cache, used in the first multiprocessor workstation, the Firefly, built from MicroVAX 78032 microprocessors ; the first multi-threaded Unix system, Taos ; the first user interface editor ; the first networked window system, Trestle.

Some SMRs are simple card indexes, others are command line Unix databases and others are more modern and GIS-based.

Some SSI systems provide the illusion that all processes are running on the same machine-the process management tools ( e. g. " ps ", " kill " on Unix like systems ) operate on all processes in the cluster.

Some of the languages with support for foreach loops include ABC, ActionScript, Ada, C ++ 11, C #, Cobra, D, Daplex ( a query language ), ECMAScript, Java ( since 1. 5, using the reserved word for the for loop and the foreach loop ), JavaScript, Objective-C ( since 2. 0 ), Perl, PHP, Python, REALbasic, Ruby, Smalltalk, Tcl, tcsh, Unix shells, Visual Basic. NET and Windows PowerShell.

Some of the salient characteristics that distinguish Hartmann Pipeline from ordinary Unix pipes are:

Some variants of Unix support options such as and.

Some Unix systems behave differently in this mode, depending on the termination of directory paths.

Some educated parties note that the USL v. BSDi case had shown that the Unix copyrights are weak and unenforceable.

Some are home-grown while others are modeled after mainstream FOSS licenses such as Berkeley Software Distribution (“ BSD ”), Apache, MIT-style ( Massachusetts Institute of Technology ), or GNU General Public License (“ GPL ”).

Some improvements were made to the BSD library in the 1990s as " BSD 4. 4 " curses, e. g., to provide more than one type of video highlighting.

* Some of the GNUtools ( like gzip and * roff ) were replaced by original UNIX code released by Caldera International ( SCO ) under a BSD licence

Some implementations of cron, such as that in the popular 4th BSD edition written by Paul Vixie and included in many Linux distributions, add a sixth field to the format: an account username that the specified job will be run by ( subject to user existence and permissions ).

Some OSes ( such as Windows 2000 / XP / Vista / 7 and * BSD ) require legacy BIOS functions which are provided by SeaBIOS.

Some apps such as Microsoft Office are available in versions for several different platforms ; others have narrower requirements and are thus called, for example, a Geography application for Windows or an Android application for education or Linux gaming.

Some, like VirtualBox and VMware Player run on Windows and Linux hosts and can run many other operating systems.

Some Linux distributions have enabled privacy extensions as well.

Some Id Software titles ported to Linux are Doom ( the first Id Software game to be ported ), Quake, Quake II, Quake III Arena, Return to Castle Wolfenstein, Wolfenstein: Enemy Territory, Doom 3, Quake 4, and Enemy Territory: Quake Wars.

Some installations use Linux for zSeries to run Web servers, where Linux runs as the operating system within many virtual machines.

Some are PulseAudio, Advanced Linux Sound Architecture ( ALSA ), Open Sound System ( OSS ), and JACK Audio Connection Kit ( JACK ).

Some secure cryptoprocessors can even run general-purpose operating systems such as Linux inside their security boundary.

Some operating systems such as Linux and Mac OS X have virtual drive functionality built-in ( such as the loop device ), while others such as Microsoft Windows require additional software.

Some " generic " GDI drivers have been written which make some GDI printers compatible with non-Microsoft operating systems such as Linux, but there is no guarantee that any particular GDI printer will be supported.

Some related utilities are available for Mac OS X and Linux.

Some Linux distributions also use a derivative of ash as the default shell, although Bash ( Bourne Again Shell ) is more popular.

Some operating systems, such as OpenBSD with its W ^ X feature, and Linux with the Exec Shield or PaX patches, may also limit the length of the code segment, as specified by the CS register, to disallow execution of code in modifiable regions of the address space.

Some operating systems, such as Mac OS X and some Linux distributions, allow administrator accounts which provide greater access while shielding the user from most of the pitfalls of full root access.

Some examples are Window Maker ( which emulates the look and feel of the NeXTstep GUI ), Docky, and Avant Window Navigator, KXDocker ( amongst others ) for KDE and various other gdesklet / adesklets docks, AfterStep's Wharf ( a derivation from the NeXTstep UI ), iTask NG ( a module used with some Enlightenment-based Linux distributions such as gOS ) and Blackbox's Slit.

Some of the " more prominent organizations " involved in OSS development include the Apache Software Foundation, creators of the Apache web server ; a loose affiliation of developers headed by Linus Torvalds, creators of the Linux operating system kernel ; the Eclipse Foundation, home of the Eclipse software development platform ; the Debian Project, creators of the influential Debian GNU / Linux distribution ;

Some are skinable ; The open source Icebreaker's default skin varies radically from JezzBall, using Tux, the Linux mascot, in place of balls.

Some Linux systems such as GoboLinux and Syllable Server use a completely different approach from the FHS.

Some calculators, especially those with other PDA-like functions have actual operating systems including the TI proprietary OS for its more recent machines, MS-DOS, Windows CE, and rarely Windows NT 4. 0 Embedded et seq, and Linux.

Some companies currently manufacturing devices, such as the pcHDTV devices intended for the Linux market, would likely be forced to halt production.

Some have had partial success decoding it using audio tape recorder heads, laptop sound cards, and custom Linux software.

Some Linux users run Linux-based anti-virus software to scan insecure documents and email which comes from or is going to Windows users.