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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"><html><head><!-- Copyright 1997 The Open Group, All Rights Reserved --><title>sccs</title></head><body bgcolor=white><center><font size=2>The Single UNIX ® Specification, Version 2<br>Copyright © 1997 The Open Group</font></center><hr size=2 noshade><h4><a name = "tag_001_014_1954"> </a>NAME</h4><blockquote>sccs - front end for the SCCS subsystem (<b>DEVELOPMENT</b>)</blockquote><h4><a name = "tag_001_014_1955"> </a>SYNOPSIS</h4><blockquote><pre><code>sccs <b>[</b>-r<b>][</b>-d <i>path</i><b>][</b>-p <i>path</i><b>] </b><i>command </i><b>[</b><i>options</i>...<b>][</b><i>operands</i>...<b>]</b></code></pre></blockquote><h4><a name = "tag_001_014_1956"> </a>DESCRIPTION</h4><blockquote>The<i>sccs</i>utilityis a front end to the SCCS programs.It also includesthe capability to run set-user-id to another user to provideadditional protection.<p>The<i>sccs</i>utility invokes the specified<i>command</i>with the specified<i>options</i>and<i>operands</i>.By default, each of the<i>operands</i>is modified by prefixing it with the stringSCCS/s..<p>The<i>command</i>operand can be one of the SCCS utilities in this specification(<i>admin</i>,<i><a href="delta.html">delta</a></i>,<i><a href="get.html">get</a></i>,<i><a href="prs.html">prs</a></i>,<i><a href="rmdel.html">rmdel</a></i>,<i><a href="sact.html">sact</a></i>,<i><a href="unget.html">unget</a></i>,<i><a href="val.html">val</a></i>or<i><a href="what.html">what</a></i>)or one of the pseudo-utilities listed in theEXTENDED DESCRIPTION section.</blockquote><h4><a name = "tag_001_014_1957"> </a>OPTIONS</h4><blockquote>The<i>sccs</i>utility supports the <b>XBD</b> specification, <a href="../xbd/utilconv.html#usg"><b>Utility Syntax Guidelines</b> </a> ,except that<i>options</i>operands are actually options to be passed to the utility named by<i>command</i>.When the portion of the command:<p><code><i>command</i><b>[</b><i>options ...</i><b>]</b><b>[</b><i>operands ...</i><b>]</b></code>is considered, all of the pseudo-utilities used as<i>command</i>support the Utility Syntax Guidelines.Any of the other SCCS utilities that can be invokedin this manner support the Guidelines to the extentindicated by their individual OPTIONS sections.<p>The following options are supported preceding the<i>command</i>operand:<dl compact><dt><b>-d </b><i>path</i><dd>A pathname of a directory to be used as a root directoryfor the SCCS files.The default is the current directory.The<b>-d</b>option takes precedence over the<i>PROJECTDIR</i>variable.See<b>-p</b>.<dt><b>-p </b><i>path</i><dd>A pathname of a directory in which the SCCS files are located.The default is the<b>SCCS</b>directory.The<b>-p</b>option differs from the<b>-d</b>option in that the<b>-d</b>option-argument is prefixed to the entire pathname and the<b>-p</b>option-argument is inserted before the final component of the pathname.For example:<pre><code>sccs -d /x -p y get a/b</code></pre>will convert to:<pre><code>get /x/a/y/s.b</code></pre>This allows the creation of aliases such as:<pre><code>alias syssccs="sccs -d /usr/src"</code></pre>which will be used as:<pre><code>syssccs get cmd/who.c</code></pre><dt><b>-r</b><dd>Invoke<i>command</i>with the real user ID of the process, not any effective user IDthat the<i>sccs</i>utility is set to.Certain commands(<i>admin</i>,<b>check</b>,<b>clean</b>,<b>diffs</b>,<b>info</b>,<i><a href="rmdel.html">rmdel</a></i>and<b>tell</b>)cannot be run set-user-IDby all users, since this would allow anyone to change theauthorisations.These commands are always run as the real user.</dl><br></blockquote><h4><a name = "tag_001_014_1958"> </a>OPERANDS</h4><blockquote>The following operands are supported:<dl compact><dt><i>command</i><dd>An SCCS utility name or the name of one of thepseudo-utilities listed in the EXTENDED DESCRIPTION section.<dt><i>options</i><dd>An option or option-argument to be passed to<i>command</i>.<dt><i>operands</i><dd>An operand to be passed to<i>command</i>.</dl></blockquote><h4><a name = "tag_001_014_1959"> </a>STDIN</h4><blockquote>See the utility description for the specified<i>command</i>.</blockquote><h4><a name = "tag_001_014_1960"> </a>INPUT FILES</h4><blockquote>See the utility description for the specified<i>command</i>.</blockquote><h4><a name = "tag_001_014_1961"> </a>ENVIRONMENT VARIABLES</h4><blockquote>The following environment variables affect the execution of<i>sccs</i>:<dl compact><dt><i>LANG</i><dd>Provide a default value for the internationalisation variablesthat are unset or null.If<i>LANG</i>is unset or null, the corresponding value from theimplementation-dependent default locale will be used.If any of the internationalisation variables contains an invalid setting, theutility will behave as if none of the variables had been defined.<dt><i>LC_ALL</i><dd>If set to a non-empty string value,override the values of all the other internationalisation variables.<dt><i>LC_CTYPE</i><dd>Determine thelocale for the interpretation of sequences of bytes of text data ascharacters (for example, single-as opposed to multi-byte characters in arguments and input files).<dt><i>LC_MESSAGES</i><dd>Determine the locale that should be used to affectthe format and contents of diagnosticmessages written to standard error.<dt><i>NLSPATH</i><dd>Determine the location of message cataloguesfor the processing of<i>LC_MESSAGES .</i><dt><i>PROJECTDIR</i><dd>Provide a default value for the<b>-d</b> <i>path</i>option.If the value of<i>PROJECTDIR</i>begins with a slash, it is considered an absolute pathname;otherwise,the home directory of a user of that name is examined for a<b>src</b>subdirectoryor<b>source</b>.If such a directory is found, it is used.Otherwise, the value is used as a relative pathname.</dl><p>Additional environment variable effects may be foundin the utility description for the specified<i>command</i>.</blockquote><h4><a name = "tag_001_014_1962"> </a>ASYNCHRONOUS EVENTS</h4><blockquote>Default.</blockquote><h4><a name = "tag_001_014_1963"> </a>STDOUT</h4><blockquote>See the utility description for the specified<i>command</i>.</blockquote><h4><a name = "tag_001_014_1964"> </a>STDERR</h4><blockquote>See the utility description for the specified<i>command</i>.</blockquote><h4><a name = "tag_001_014_1965"> </a>OUTPUT FILES</h4><blockquote>See the utility description for the specified<i>command</i>.</blockquote><h4><a name = "tag_001_014_1966"> </a>EXTENDED DESCRIPTION</h4><blockquote>The following pseudo-utilities are supported as<i>command</i>operands.All options referred to in the following list are values given in the<i>options</i>operands following<i>command</i>.<dl compact><dt><b>check</b><dd>Equivalent to<b>info</b>,except that nothing is printed if nothing is being edited,and a non-zero exit status is returned if anything is being edited.The intent is to have this included in an "install" entry in a makefile toensure that everything is included into the SCCS file before a versionis installed.<dt><b>clean</b><dd>Remove everything from the current directory that can berecreated from SCCS files,but do not remove any files being edited.If the<b>-b</b>option is given, branches are ignored in the determination ofwhether they are being edited;this is dangerous ifbranches are kept in the same directory.<dt><b>create</b><dd>Create an SCCS file, taking the initial contents from the file of thesame name.Any options to<i><a href="admin.html">admin</a></i>are accepted.If the creation issuccessful, the original files are renamed byprefixing the basenames with a comma.These renamed files should be removed after it has been verifiedthat the SCCS files have been created successfully.<dt><b>delget</b><dd>Perform a<i><a href="delta.html">delta</a></i>on the named files and then<i><a href="get.html">get</a></i>new versions.The newversions will have ID keywords expanded and will not be editable.Any<b>-m</b>,<b>-p</b>,<b>-r</b>,<b>-s</b>,and<b>-y</b>options will be passed to<i><a href="delta.html">delta</a></i>,and any<b>-b</b>,<b>-c</b>,<b>-e</b>,<b>-i</b>,<b>-k</b>,<b>-l</b>,<b>-s</b>and<b>-x</b>options will be passed to<i><a href="get.html">get</a></i>.<dt><b>deledit</b><dd>Equivalent to<b>delget</b>,except that the<i><a href="get.html">get</a></i>phase includes the<b>-e</b>option.This option is useful for making a checkpoint of the current editing phase.The same options will be passed to<i><a href="delta.html">delta</a></i>as described above, andall the options listed for<i><a href="get.html">get</a></i>above except<b>-e</b>are passed to<b>edit</b>.<dt><b>diffs</b><dd>Write a difference listing between the current version of the fileschecked out for editing and the versions in SCCS format.Any<b>-r</b>,<b>-c</b>,<b>-i</b>,<b>-x</b>and<b>-t</b>options are passed to<i><a href="get.html">get</a></i>;any<b>-l</b>,<b>-s</b>,<b>-e</b>,<b>-f</b>,<b>-h</b>and<b>-b</b>options are passed to<i><a href="diff.html">diff</a></i>.A<b>-C</b>option is passed to<i><a href="diff.html">diff</a></i>as<b>-c</b>.<dt><b>edit</b><dd>Equivalent to<i><a href="get.html">get</a></i><b>-e</b>.<dt><b>fix</b><dd>Remove thenamed delta, but leave a copy of the delta with the changesthat were in it.It is useful for fixing small compiler bugs, and so on.It must be followed by a<b>-r</b> <i>SID</i>option.Since<b>fix</b>doesn't leave audit trails, it should be used carefully.<dt><b>info</b><dd>Write a listing of all files being edited.If the<b>-b</b>option is given,branches (that is, SIDs with two or fewer components) are ignored.If a<b>-u</b> <i>user</i>option is given, then only files beingedited by the named user are listed.A<b>-U</b>option is equivalent to<b>-u</b><<i>current user</i>>.<dt><b>print</b><dd>Write out verbose information about the named files,equivalent to<i>sccs</i><i><a href="prs.html">prs</a></i>.<dt><b>tell</b><dd>Write anewline-separatedlist of the files being edited to standard output.Takes the<b>-b</b>,<b>-u</b>and<b>-U</b>options like<b>info</b>and<b>check</b>.<dt><b>unedit</b><dd>This is the opposite of an<b>edit</b>or a<i><a href="get.html">get</a></i><b>-e</b>.It should be used withcaution, since any changes made since the<i><a href="get.html">get</a></i>will be lost.</dl><br></blockquote><h4><a name = "tag_001_014_1967"> </a>EXIT STATUS</h4><blockquote>The following exit values are returned:<dl compact><dt>0<dd>Successful completion.<dt>>0<dd>An error occurred.</dl></blockquote><h4><a name = "tag_001_014_1968"> </a>CONSEQUENCES OF ERRORS</h4><blockquote>Default.</blockquote><h4><a name = "tag_001_014_1969"> </a>APPLICATION USAGE</h4><blockquote>Many of the SCCS utilities take directory names as operandsas well as specific filenames.The pseudo-utilities supported by<i>sccs</i>are not described as having this capability,but are not prohibited from doing so.</blockquote><h4><a name = "tag_001_014_1970"> </a>EXAMPLES</h4><blockquote><ol><p><li>To get a file for editing, edit it and produce a new delta:<pre><code>sccs get -e file.cex file.csccs delta file.c</code></pre><p><li>To get a file from another directory:<pre><code>sccs -p /usr/src/sccs/s. get cc.c</code></pre>or:<pre><code>sccs get /usr/src/sccs/s.cc.c</code></pre><p><li>To make a delta of a large number of files in the current directory:<pre><code>sccs delta *.c</code></pre><p><li>To get a list of files being edited that are not on branches:<pre><code>sccs info -b</code></pre><p><li>To delta everything being edited by the current user:<pre><code>sccs delta $(sccs tell -U)</code></pre><p><li>In a makefile, to get source files from an SCCS file if itdoes not already exist:<pre><code>SRCS = <<i>list of source files</i>>$(SRCS): sccs get $(REL) $@</code></pre><p></ol></blockquote><h4><a name = "tag_001_014_1971"> </a>FUTURE DIRECTIONS</h4><blockquote>None.</blockquote><h4><a name = "tag_001_014_1972"> </a>SEE ALSO</h4><blockquote><i><a href="admin.html">admin</a></i>,<i><a href="delta.html">delta</a></i>,<i><a href="get.html">get</a></i>,<i><a href="make.html">make</a></i>,<i><a href="prs.html">prs</a></i>,<i><a href="rmdel.html">rmdel</a></i>,<i><a href="sact.html">sact</a></i>,<i><a href="unget.html">unget</a></i>,<i><a href="val.html">val</a></i>,<i><a href="what.html">what</a></i>.</blockquote><hr size=2 noshade><center><font size=2>UNIX ® is a registered Trademark of The Open Group.<br>Copyright © 1997 The Open Group<br> [ <a href="../index.html">Main Index</a> | <a href="../xshix.html">XSH</a> | <a href="../xcuix.html">XCU</a> | <a href="../xbdix.html">XBD</a> | <a href="../cursesix.html">XCURSES</a> | <a href="../xnsix.html">XNS</a> ]</font></center><hr size=2 noshade></body></html>⌨️ 快捷键说明
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