70 lines
1.7 KiB
Groff
70 lines
1.7 KiB
Groff
.TH ED 1
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.SH NAME
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ed \- editor
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.SH SYNOPSIS
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\fBed \fIfile\fR
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.br
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.de FL
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.TP
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\\fB\\$1\\fR
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\\$2
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..
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.de EX
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.TP 20
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\\fB\\$1\\fR
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# \\$2
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..
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.SH OPTIONS
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.FL "\-" "Suppress line/byte count messages (for in scripts)"
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.SH EXAMPLES
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.EX "ed prog.c" "Edit \fIprog.c\fR"
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.EX "echo '1,$p' | ed - file" "Odd way to write 'cat file'"
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.SH DESCRIPTION
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.PP
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\fIEd\fR is functionally equivalent to the standard V7 editor, ed.
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It supports the following commands:
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.PP
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.nf
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.ta 0.5i 0.95i
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(.) a: append
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(.,.) c: change
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(.,.) d: delete
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e: edit new file"
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f: print name of edited file"
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(1,$) g: global command
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(.) i: insert
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(.,.+1) j: join lines together
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(.) k: mark
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(.) l: print with special characters in octal
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(.,.) m: move
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(.,.) p: print
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q: quit editor"
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(.) r: read in new file
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(.,.) s: substitute
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(1,$) v: like g, except select lines that do not match
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(1,$) w: write out edited file
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.fi
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Many of the commands can take one or two addresses, as indicated above. The
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defaults are shown in parentheses. Thus \fIa\fR appends to the current
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line, and \fIg\fR works on the whole file as default.
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The dot refers to the current line.
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Below is a sample editing session with comments given following the # symbol.
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.PP
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.nf
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.ta 0.5i 2.5i
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ed prog.c # Edit prog.c
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3,20p # Print lines 3 through 20
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/whole/ # Find next occurence of \fIwhole\fR
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s/whole/while/ # Replace \fIwhole\fR by \fIwhile\fR
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g/Buf/s//BUF/g # Replace \fIBuf\fR by \fIBUF\fR everywhere
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w # Write the file back
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q # Exit the editor
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.fi
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\fIEd\fR is provided for its sentimental value.
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If you want a line-oriented editor, try \fIex\fR.
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If you want a good editor, use \fIelle\fR, \fIelvis\fR, or \fImined\fR.
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.SH "SEE ALSO"
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.BR elvis (1),
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.BR elle (9),
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.BR mined (9).
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