Print this page
8858 /usr/bin/grep doesn't support -E option
4580 /usr/bin/grep can't handle multibyte characters
8929 8868 tests are not delivered with system/test/utiltest
8860 Example in grep(1) is incorrect
Reviewed by: Peter Tribble <peter.tribble@gmail.com>
Reviewed by: Toomas Soome <tsoome@me.com>
Reviewed by: Yuri Pankov <yuripv@gmx.com>

Split Close
Expand all
Collapse all
          --- old/usr/src/man/man1/egrep.1
          +++ new/usr/src/man/man1/egrep.1
↓ open down ↓ 1 lines elided ↑ open up ↑
   2    2  .\" Copyright 1989 AT&T
   3    3  .\" Copyright (c) 2006, Sun Microsystems, Inc. All Rights Reserved
   4    4  .\" Portions Copyright (c) 1992, X/Open Company Limited All Rights Reserved
   5    5  .\" Sun Microsystems, Inc. gratefully acknowledges The Open Group for permission to reproduce portions of its copyrighted documentation. Original documentation from The Open Group can be obtained online at
   6    6  .\" http://www.opengroup.org/bookstore/.
   7    7  .\" The Institute of Electrical and Electronics Engineers and The Open Group, have given us permission to reprint portions of their documentation. In the following statement, the phrase "this text" refers to portions of the system documentation. Portions of this text are reprinted and reproduced in electronic form in the Sun OS Reference Manual, from IEEE Std 1003.1, 2004 Edition, Standard for Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2004 by the Institute of Electrical and Electronics Engineers, Inc and The Open Group. In the event of any discrepancy between these versions and the original IEEE and The Open Group Standard, the original IEEE and The Open Group Standard is the referee document. The original Standard can be obtained online at http://www.opengroup.org/unix/online.html.
   8    8  .\"  This notice shall appear on any product containing this material.
   9    9  .\" The contents of this file are subject to the terms of the Common Development and Distribution License (the "License").  You may not use this file except in compliance with the License.
  10   10  .\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing.  See the License for the specific language governing permissions and limitations under the License.
  11   11  .\" When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE.  If applicable, add the following below this CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner]
  12      -.TH EGREP 1 "May 3, 2013"
       12 +.TH EGREP 1 "Nov 28, 2017"
  13   13  .SH NAME
  14   14  egrep \- search a file for a pattern using full regular expressions
  15   15  .SH SYNOPSIS
  16   16  .LP
  17   17  .nf
  18      -\fB/usr/bin/egrep\fR [\fB-bcHhilnqsv\fR] \fB-e\fR \fIpattern_list\fR [\fIfile...\fR]
  19      -.fi
  20      -
  21      -.LP
  22      -.nf
  23      -\fB/usr/bin/egrep\fR [\fB-bcHhilnqsv\fR] \fB-f\fR \fIfile\fR [\fIfile...\fR]
  24      -.fi
  25      -
  26      -.LP
  27      -.nf
  28      -\fB/usr/bin/egrep\fR [\fB-bcHhilnqsv\fR] \fIpattern\fR [\fIfile...\fR]
  29      -.fi
  30      -
  31      -.LP
  32      -.nf
  33      -\fB/usr/xpg4/bin/egrep\fR [\fB-bcHhilnqsvx\fR] \fB-e\fR \fIpattern_list\fR [\fB-f\fR \fIfile\fR]
       18 +\fB/usr/bin/egrep\fR [\fB-bcHhilnqsvx\fR] \fB-e\fR \fIpattern_list\fR [\fB-f\fR \fIfile\fR]
  34   19       [\fIfile...\fR]
  35   20  .fi
  36   21  
  37   22  .LP
  38   23  .nf
  39      -\fB/usr/xpg4/bin/egrep\fR [\fB-bcHhilnqsvx\fR] [\fB-e\fR \fIpattern_list\fR] \fB-f\fR \fIfile\fR
       24 +\fB/usr/bin/egrep\fR [\fB-bcHhilnqsvx\fR] [\fB-e\fR \fIpattern_list\fR] \fB-f\fR \fIfile\fR
  40   25       [\fIfile...\fR]
  41   26  .fi
  42   27  
  43   28  .LP
  44   29  .nf
  45      -\fB/usr/xpg4/bin/egrep\fR [\fB-bcHhilnqsvx\fR] \fIpattern\fR [\fIfile...\fR]
       30 +\fB/usr/bin/egrep\fR [\fB-bcHhilnqsvx\fR] \fIpattern\fR [\fIfile...\fR]
  46   31  .fi
  47   32  
  48   33  .SH DESCRIPTION
  49      -.sp
  50   34  .LP
  51   35  The \fBegrep\fR (\fIexpression grep\fR) utility searches files for a pattern of
  52   36  characters and prints all lines that contain that pattern. \fBegrep\fR uses
  53   37  full regular expressions (expressions that have string values that use the full
  54   38  set of alphanumeric and special characters) to match the patterns. It uses a
  55   39  fast deterministic algorithm that sometimes needs exponential space.
  56   40  .sp
  57   41  .LP
  58   42  If no files are specified, \fBegrep\fR assumes standard input. Normally, each
  59   43  line found is copied to the standard output. The file name is printed before
  60   44  each line found if there is more than one input file.
  61      -.SS "/usr/bin/egrep"
  62      -.sp
  63   45  .LP
  64      -The \fB/usr/bin/egrep\fR utility accepts full regular expressions as described
  65      -on the \fBregexp\fR(5) manual page, except for \fB\e(\fR and \fB\e)\fR,
  66      -\fB\e(\fR and \fB\e)\fR, \fB\e{\fR and \fB\e}\fR, \fB\e<\fR and \fB\e>\fR, and
  67      -\fB\en\fR, and with the addition of:
  68      -.RS +4
  69      -.TP
  70      -1.
  71      -A full regular expression followed by \fB+\fR that matches one or more
  72      -occurrences of the full regular expression.
  73      -.RE
  74      -.RS +4
  75      -.TP
  76      -2.
  77      -A full regular expression followed by \fB?\fR that matches 0 or 1
  78      -occurrences of the full regular expression.
  79      -.RE
  80      -.RS +4
  81      -.TP
  82      -3.
  83      -Full regular expressions separated by | or by a \fBNEWLINE\fR that match
  84      -strings that are matched by any of the expressions.
  85      -.RE
  86      -.RS +4
  87      -.TP
  88      -4.
  89      -A full regular expression that can be enclosed in parentheses \fB()\fRfor
  90      -grouping.
  91      -.RE
       46 +The \fBegrep\fR utility accepts the same form of full regular expressions as
       47 +\fBgrep\fR(1) -E option.
  92   48  .sp
  93   49  .LP
  94   50  Be careful using the characters \fB$\fR, \fB*\fR, \fB[\fR, \fB^\fR, |, \fB(\fR,
  95   51  \fB)\fR, and \fB\e\fR in \fIfull regular expression\fR, because they are also
  96   52  meaningful to the shell. It is safest to enclose the entire \fIfull regular
  97   53  expression\fR in single quotes (\fBa\'\fR\fBa\'\fR).
  98   54  .sp
  99   55  .LP
 100   56  The order of precedence of operators is \fB[\|]\fR, then \fB*\|?\|+\fR, then
 101   57  concatenation, then | and NEWLINE.
 102      -.SS "/usr/xpg4/bin/egrep"
 103      -.sp
 104      -.LP
 105      -The \fB/usr/xpg4/bin/egrep\fR utility uses the regular expressions described in
 106      -the \fBEXTENDED REGULAR EXPRESSIONS\fR section of the \fBregex\fR(5) manual
 107      -page.
 108   58  .SH OPTIONS
 109      -.sp
 110   59  .LP
 111      -The following options are supported for both \fB/usr/bin/egrep\fR and
 112      -\fB/usr/xpg4/bin/egrep\fR:
       60 +The following options are supported:
 113   61  .sp
 114   62  .ne 2
 115   63  .na
 116   64  \fB\fB-b\fR\fR
 117   65  .ad
 118      -.RS 19n
       66 +.RS 6n
 119   67  Precede each line by the block number on which it was found. This can be useful
 120   68  in locating block numbers by context (first block is 0).
 121   69  .RE
 122   70  
 123   71  .sp
 124   72  .ne 2
 125   73  .na
 126   74  \fB\fB-c\fR\fR
 127   75  .ad
 128      -.RS 19n
       76 +.RS 6n
 129   77  Print only a count of the lines that contain the pattern.
 130   78  .RE
 131   79  
 132   80  .sp
 133   81  .ne 2
 134   82  .na
 135   83  \fB\fB-e\fR \fIpattern_list\fR\fR
 136   84  .ad
 137      -.RS 19n
       85 +.RS 6n
 138   86  Search for a \fIpattern_list\fR (\fIfull regular expression\fR that begins with
 139   87  a \fB\(mi\fR).
 140   88  .RE
 141   89  
 142   90  .sp
 143   91  .ne 2
 144   92  .na
 145   93  \fB\fB-f\fR \fIfile\fR\fR
 146   94  .ad
 147      -.RS 19n
       95 +.RS 6n
 148   96  Take the list of \fIfull\fR \fIregular\fR \fIexpressions\fR from \fIfile\fR.
 149   97  .RE
 150   98  
 151   99  .sp
 152  100  .ne 2
 153  101  .na
 154  102  \fB\fB-H\fR\fR
 155  103  .ad
 156      -.RS 19n
      104 +.RS 6n
 157  105  Precedes each line by the name of the file containing the matching line.
 158  106  .RE
 159  107  
 160  108  .sp
 161  109  .ne 2
 162  110  .na
 163  111  \fB\fB-h\fR\fR
 164  112  .ad
 165      -.RS 19n
      113 +.RS 6n
 166  114  Suppress printing of filenames when searching multiple files.
 167  115  .RE
 168  116  
 169  117  .sp
 170  118  .ne 2
 171  119  .na
 172  120  \fB\fB-i\fR\fR
 173  121  .ad
 174      -.RS 19n
      122 +.RS 6n
 175  123  Ignore upper/lower case distinction during comparisons.
 176  124  .RE
 177  125  
 178  126  .sp
 179  127  .ne 2
 180  128  .na
 181  129  \fB\fB-l\fR\fR
 182  130  .ad
 183      -.RS 19n
      131 +.RS 6n
 184  132  Print the names of files with matching lines once, separated by NEWLINEs. Does
 185  133  not repeat the names of files when the pattern is found more than once.
 186  134  .RE
 187  135  
 188  136  .sp
 189  137  .ne 2
 190  138  .na
 191  139  \fB\fB-n\fR\fR
 192  140  .ad
 193      -.RS 19n
      141 +.RS 6n
 194  142  Precede each line by its line number in the file (first line is 1).
 195  143  .RE
 196  144  
 197  145  .sp
 198  146  .ne 2
 199  147  .na
 200  148  \fB\fB-q\fR\fR
 201  149  .ad
 202      -.RS 19n
      150 +.RS 6n
 203  151  Quiet. Does not write anything to the standard output, regardless of matching
 204  152  lines. Exits with zero status if an input line is selected.
 205  153  .RE
 206  154  
 207  155  .sp
 208  156  .ne 2
 209  157  .na
 210  158  \fB\fB-s\fR\fR
 211  159  .ad
 212      -.RS 19n
      160 +.RS 6n
 213  161  Legacy equivalent of \fB-q\fR.
 214  162  .RE
 215  163  
 216  164  .sp
 217  165  .ne 2
 218  166  .na
 219  167  \fB\fB-v\fR\fR
 220  168  .ad
 221      -.RS 19n
      169 +.RS 6n
 222  170  Print all lines except those that contain the pattern.
 223  171  .RE
 224  172  
 225      -.SS "/usr/xpg4/bin/egrep"
 226      -.sp
 227      -.LP
 228      -The following options are supported for \fB/usr/xpg4/bin/egrep\fR only:
 229  173  .sp
 230  174  .ne 2
 231  175  .na
 232  176  \fB\fB-x\fR\fR
 233  177  .ad
 234  178  .RS 6n
 235  179  Consider only input lines that use all characters in the line to match an
 236  180  entire fixed string or regular expression to be matching lines.
 237  181  .RE
 238  182  
 239  183  .SH OPERANDS
 240      -.sp
 241  184  .LP
 242  185  The following operands are supported:
 243  186  .sp
 244  187  .ne 2
 245  188  .na
 246  189  \fB\fIfile\fR\fR
 247  190  .ad
 248  191  .RS 8n
 249  192  A path name of a file to be searched for the patterns. If no \fIfile\fR
 250  193  operands are specified, the standard input is used.
 251  194  .RE
 252  195  
 253      -.SS "/usr/bin/egrep"
 254      -.sp
 255      -.ne 2
 256      -.na
 257      -\fB\fIpattern\fR\fR
 258      -.ad
 259      -.RS 11n
 260      -Specify a pattern to be used during the search for input.
 261      -.RE
 262      -
 263      -.SS "/usr/xpg4/bin/egrep"
 264      -.sp
 265  196  .ne 2
 266  197  .na
 267  198  \fB\fIpattern\fR\fR
 268  199  .ad
 269      -.RS 11n
      200 +.RS 8n
 270  201  Specify one or more patterns to be used during the search for input. This
 271      -operand is treated as if it were specified as \fB-e\fR\fIpattern_list.\fR.
      202 +operand is treated as if it were specified as \fB-e\fR\fIpattern_list\fR.
 272  203  .RE
 273  204  
 274  205  .SH USAGE
 275      -.sp
 276  206  .LP
 277  207  See \fBlargefile\fR(5) for the description of the behavior of \fBegrep\fR when
 278  208  encountering files greater than or equal to 2 Gbyte ( 2^31 bytes).
 279  209  .SH ENVIRONMENT VARIABLES
 280      -.sp
 281  210  .LP
 282  211  See \fBenviron\fR(5) for descriptions of the following environment variables
 283  212  that affect the execution of \fBegrep\fR: \fBLC_COLLATE\fR, \fBLC_CTYPE\fR,
 284  213  \fBLC_MESSAGES\fR, and \fBNLSPATH\fR.
 285  214  .SH EXIT STATUS
 286      -.sp
 287  215  .LP
 288  216  The following exit values are returned:
 289  217  .sp
 290  218  .ne 2
 291  219  .na
 292  220  \fB\fB0\fR\fR
 293  221  .ad
 294  222  .RS 5n
 295  223  If any matches are found.
 296  224  .RE
↓ open down ↓ 10 lines elided ↑ open up ↑
 307  235  .sp
 308  236  .ne 2
 309  237  .na
 310  238  \fB\fB2\fR\fR
 311  239  .ad
 312  240  .RS 5n
 313  241  For syntax errors or inaccessible files (even if matches were found).
 314  242  .RE
 315  243  
 316  244  .SH ATTRIBUTES
 317      -.sp
 318  245  .LP
 319  246  See \fBattributes\fR(5) for descriptions of the following attributes:
 320      -.SS "/usr/bin/egrep"
 321      -.sp
 322      -
 323      -.sp
 324      -.TS
 325      -box;
 326      -c | c
 327      -l | l .
 328      -ATTRIBUTE TYPE  ATTRIBUTE VALUE
 329      -_
 330      -CSI     Not Enabled
 331      -.TE
 332      -
 333      -.SS "/usr/xpg4/bin/egrep"
 334      -.sp
 335  247  
 336  248  .sp
 337  249  .TS
 338  250  box;
 339  251  c | c
 340  252  l | l .
 341  253  ATTRIBUTE TYPE  ATTRIBUTE VALUE
 342  254  _
 343  255  CSI     Enabled
 344  256  .TE
 345  257  
 346  258  .SH SEE ALSO
 347      -.sp
 348  259  .LP
 349  260  \fBfgrep\fR(1), \fBgrep\fR(1), \fBsed\fR(1), \fBsh\fR(1), \fBattributes\fR(5),
 350  261  \fBenviron\fR(5), \fBlargefile\fR(5), \fBregex\fR(5), \fBregexp\fR(5),
 351  262  \fBXPG4\fR(5)
 352  263  .SH NOTES
 353      -.sp
 354  264  .LP
 355  265  Ideally there should be only one \fBgrep\fR command, but there is not a single
 356  266  algorithm that spans a wide enough range of space-time trade-offs.
 357  267  .sp
 358  268  .LP
 359  269  Lines are limited only by the size of the available virtual memory.
 360      -.SS "/usr/xpg4/bin/egrep"
 361      -.sp
 362  270  .LP
 363      -The \fB/usr/xpg4/bin/egrep\fR utility is identical to \fB/usr/xpg4/bin/grep\fR
      271 +The \fB/usr/bin/egrep\fR utility is identical to \fB/usr/bin/grep\fR
 364  272  \fB-E\fR. See \fBgrep\fR(1). Portable applications should use
 365      -\fB/usr/xpg4/bin/grep\fR \fB-E\fR.
      273 +\fB/usr/bin/grep\fR \fB-E\fR.
      274 +.LP
      275 +In the past the behavior of \fB/usr/xpg4/bin/egrep\fR and
      276 +\fB/usr/bin/egrep\fR utilities was different. Now \fB/usr/bin/egrep\fR
      277 +is replaced by \fB/usr/xpg4/bin/egrep\fR.
    
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX