ar 3.1 KB

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  1. .TH AR 1
  2. .SH NAME
  3. ar \- archive and library maintainer
  4. .SH SYNOPSIS
  5. .B ar
  6. .I key
  7. [
  8. .I posname
  9. ]
  10. .I afile
  11. [
  12. .I file ...
  13. ]
  14. .SH DESCRIPTION
  15. .I Ar
  16. maintains groups of files
  17. combined into a single archive file,
  18. .IR afile .
  19. The main use of
  20. .I ar
  21. is to create and update library files for the loaders
  22. .IR 8l (1),
  23. etc.
  24. It can be used, though, for any similar purpose.
  25. .PP
  26. .I Key
  27. is one character from the set
  28. .BR drqtpmx ,
  29. optionally concatenated with
  30. one or more of
  31. .BR vuaibclo .
  32. The
  33. .I files
  34. are constituents of the archive
  35. .IR afile .
  36. The meanings of the
  37. .I key
  38. characters are:
  39. .TP
  40. .B d
  41. Delete
  42. .I files
  43. from the archive file.
  44. .TP
  45. .B r
  46. Replace
  47. .I files
  48. in the archive file, or add them if missing.
  49. Optional modifiers are
  50. .RS
  51. .PD0
  52. .TP
  53. .B u
  54. Replace only files with
  55. modified dates later than that of
  56. the archive.
  57. .TP
  58. .B a
  59. Place new files after
  60. .I posname
  61. in the archive rather than at the end.
  62. .TP
  63. .BR b " or " i
  64. Place new files before
  65. .I posname
  66. in the archive.
  67. .RE
  68. .PD
  69. .TP
  70. .B q
  71. Quick. Append
  72. .I files
  73. to the end of the archive without checking for duplicates.
  74. Avoids quadratic behavior in
  75. .LR "for (i in *.v) ar r lib.a $i" .
  76. .TP
  77. .B t
  78. List a table of contents of the archive.
  79. If names are given, only those files are listed.
  80. .TP
  81. .B p
  82. Print the named files in the archive.
  83. .TP
  84. .B m
  85. Move the named files to the end or elsewhere,
  86. specified as with
  87. .LR r .
  88. .TP
  89. .B o
  90. Preserve the access and modification times of files
  91. extracted with the
  92. .B x
  93. command.
  94. .TP
  95. .B x
  96. Extract the named files.
  97. If no names are given, all files in the archive are
  98. extracted.
  99. In neither case does
  100. .B x
  101. alter the archive file.
  102. .TP
  103. .B v
  104. Verbose.
  105. Give a file-by-file
  106. description of the making of a
  107. new archive file from the old archive and the constituent files.
  108. With
  109. .BR p ,
  110. precede each file with a name.
  111. With
  112. .BR t ,
  113. give a long listing of all information about the files,
  114. somewhat like a listing by
  115. .IR ls (1),
  116. showing
  117. .br
  118. .ns
  119. .IP
  120. .B
  121. mode uid/gid size date name
  122. .\" .TP
  123. .\" .B c
  124. .\" Create.
  125. .\" Normally
  126. .\" .I ar
  127. .\" will create a new archive when
  128. .\" .I afile
  129. .\" does not exist, and give a warning.
  130. .\" Option
  131. .\" .B c
  132. .\" discards any old contents and suppresses the warning.
  133. .TP
  134. .B l
  135. Local.
  136. Normally
  137. .I ar
  138. places its temporary files in the directory
  139. .BR /tmp .
  140. This option causes them to be placed in the local directory.
  141. .PP
  142. When a
  143. .BR d ,
  144. .BR r ,
  145. or
  146. .BR m
  147. .I key
  148. is specified and all members of the archive are valid object files for
  149. the same architecture,
  150. .I ar
  151. inserts a table of contents, required by the loaders, at
  152. the front of the library.
  153. The table of contents is
  154. rebuilt whenever the archive is modified, except
  155. when the
  156. .B q
  157. .I key
  158. is specified or when the table of contents is
  159. explicitly moved or deleted.
  160. .SH EXAMPLE
  161. .TP
  162. .L
  163. ar cr lib.a *.v
  164. Replace the contents of library
  165. .L lib.a
  166. with the object files in the current directory.
  167. .SH FILES
  168. .TF /tmp/vxxxx
  169. .TP
  170. .B /tmp/v*
  171. temporaries
  172. .SH SOURCE
  173. .B /sys/src/cmd/ar.c
  174. .SH "SEE ALSO"
  175. .IR 8l (1),
  176. .IR ar (6)
  177. .SH BUGS
  178. If the same file is mentioned twice in an argument list,
  179. it may be put in the archive twice.
  180. .br
  181. This command predates Plan 9 and makes some invalid assumptions,
  182. for instance that user id's are numeric.