sed.1 (4034B)
1 .Dd October 8, 2015 2 .Dt SED 1 3 .Os sbase 4 .Sh NAME 5 .Nm sed 6 .Nd stream editor 7 .Sh SYNOPSIS 8 .Nm 9 .Op Fl nrE 10 .Ar script 11 .Op Ar file ... 12 .Nm 13 .Op Fl nrE 14 .Fl e Ar script 15 .Op Fl e Ar script 16 .Ar ... 17 .Op Fl f Ar scriptfile 18 .Ar ... 19 .Op Ar file ... 20 .Nm 21 .Op Fl nrE 22 .Op Fl e Ar script 23 .Ar ... 24 .Fl f Ar scriptfile 25 .Op Fl f Ar scriptfile 26 .Ar ... 27 .Op Ar file ... 28 .Sh DESCRIPTION 29 .Nm 30 reads line oriented output from 31 .Ar file 32 or stdin, applies the editing commands supplied by 33 .Ar script 34 or 35 .Ar scriptfile 36 and writes the edited stream to stdout. 37 .Sh OPTIONS 38 .Bl -tag -width Ds 39 .It Fl n 40 Suppress default printing at the end of each cycle. 41 .It Fl r E 42 Use extended regular expressions 43 .It Fl e Ar script 44 Append 45 .Ar script 46 to the list of editing commands. 47 .It Fl f Ar scriptfile 48 Append the commands from 49 .Ar scriptfile 50 to the list of editing commands. 51 .El 52 .Sh EXTENDED DESCRIPTION 53 Editing commands take the form 54 .Pp 55 [address[,address]]function 56 .Ss Addresses 57 Addresses are either blank, a positive decimal integer denoting a line 58 number, the character '$' denoting the last line of input, or a regular 59 expression. 60 A command with no addresses matches every line, one address matches 61 individual lines, and two addresses matches a range of lines from the 62 first to the second address inclusive. 63 .Ss Functions 64 .Bl -tag -width Ds 65 .It Ar a Op Ar text 66 Append text to output after end of current cycle. 67 .It Ar b Op Ar label 68 Branch to label. 69 If no label is provided branch to end of script. 70 .It Ar c Op Ar text 71 Change. 72 Delete addressed range and output text after end of current cycle. 73 .It Ar d 74 Delete pattern space and begin next cycle. 75 .It Ar D 76 Delete pattern space up to and including first newline and begin new 77 cycle without reading input. 78 If there is no newline, behave like d. 79 .It Ar g 80 Get. 81 Replace the pattern space with the hold space. 82 .It Ar G 83 Get. 84 Append a newline and the hold space to the pattern space. 85 .It Ar h 86 Hold. 87 Replace the hold space with the pattern space. 88 .It Ar H 89 Hold. 90 Append a newline and the pattern space to the hold space. 91 .It Ar i Op Ar text 92 Insert text in output. 93 .It Ar l 94 List? Write the pattern space replacing known non printing characters with 95 backslash escaped versions (\\\\, \\a, \\b, \\f, \\r, \\t, \\v). 96 Print bad UTF-8 sequences as \\ooo where ooo is a three digit octal 97 number. 98 Mark end of lines with '$'. 99 .It Ar n 100 Next. 101 Write pattern space (unless 102 .Fl n ) , 103 read next line into pattern space, and continue current cycle. 104 If there is no next line, quit. 105 .It Ar N 106 Next. 107 Read next line, append newline and next line to pattern space, and 108 continue cycle. 109 If there is no next line, quit without printing current pattern space. 110 .It Ar p 111 Print current pattern space. 112 .It Ar P 113 Print current pattern space up to first newline. 114 .It Ar q 115 Quit. 116 .It Ar r file 117 Read file and write contents to output. 118 .It Ar s/re/text/flags 119 Find occurences of regular expression re in the pattern space and 120 replace with text. 121 A '&' in text is replaced with the entire match. 122 A \\d where d is a decimal digit 1-9 is replaced with the corresponding 123 match group from the regular expression. 124 \\n represents a newline in both the regular expression and replacement 125 text. 126 A literal newline in the replacement text must be preceded by a \\. 127 .Pp 128 Flags are 129 .Bl -tag -width Ds 130 .It Ar n 131 A positive decimal number denoting which match in the pattern space 132 to replace. 133 .It Ar g 134 Global. 135 Replace all matches in the pattern space. 136 .It Ar p 137 Print the pattern if a replacement was made. 138 .It Ar w file 139 Write the pattern space to file if a replacement was made. 140 .El 141 .It Ar t Op Ar label 142 Test. 143 Branch to corresponding label if a substitution has been made since the 144 last line was read or last t command was executed. 145 If no label is provided branch to end of script. 146 .It Ar w file 147 Write pattern space to file. 148 .It Ar x 149 Exchange hold space and pattern space. 150 .It Ar y/set1/set2/ 151 Replace each occurrence of a character from set 1 with the corresponding 152 character from set 2. 153 .It Ar :label 154 Create a label for b and t commands. 155 .It Ar = 156 Write current input line number to output. 157 .El