66 lines
1.7 KiB
Plaintext
66 lines
1.7 KiB
Plaintext
|
|
|
|
|
|
|
|
|
|
Command: ed - editor
|
|
Syntax: ed file
|
|
Flags: (none)
|
|
Example: ed prog.c # Edit prog.c
|
|
|
|
Ed is functionally equivalent to the standard V7 editor, ed. It
|
|
supports the following commands:
|
|
|
|
(.) a: append
|
|
(.,.) c: change
|
|
(.,.) d: delete
|
|
e: edit new file"
|
|
f: print name of edited file"
|
|
(1,$) g: global command
|
|
(.) i: insert
|
|
(.,.+1) j: join lines together
|
|
(.) k: mark
|
|
(.) l: print with special characters in octal
|
|
(.,.) m: move
|
|
(.,.) p: print
|
|
q: quit editor"
|
|
(.) r: read in new file
|
|
(.,.) s: substitute
|
|
(1,$) v: like g, except select lines that do not match
|
|
(1,$) w: write out edited file
|
|
|
|
Many of the commands can take one or two addresses, as indicated above.
|
|
The defaults are shown in parentheses. Thus a appends to the current
|
|
line, and g works on the whole file as default. The dot refers to the
|
|
current line. Below is a sample editing session with comments given
|
|
following the # symbol.
|
|
|
|
ed prog.c # Edit prog.c
|
|
3,20p # Print lines 3 through 20
|
|
/whole/ # Find next occurence of whole
|
|
s/whole/while/ # Replace whole by while
|
|
g/Buf/s//BUF/g # Replace Buf by BUF everywhere
|
|
w # Write the file back
|
|
q # Exit the editor
|
|
Ed is provided for its sentimental value. If you want a line-oriented
|
|
editor, try ex. If you want a good editor, use elle, elvis, or mined.
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|