_ _
___ | |__ __ _ _______ | |_
/ _ \| '_ \ / _` |_ / _ \| __|
| (_) | | | | (_| |/ / (_) | |_
\___/|_| |_|\__,_/___\___/ \__|
ed — text
editor: usage
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[range]command
Most commands require a range on which to be executed. If no range
is specified, it defaults to the current range.
Exceptions: u (undo), z (scroll), h (help
messages).
| n |
: 6 |
| n,n |
: 4,5 |
| /pattern/ |
: /sometext/ |
| p |
: print addressed lines. |
| n |
: print addressed lines with line numbers. |
| l |
: print addressed lines including control and non-printable
characters. |
| a |
: append: start adding text after the range. (Eg.: 4a) |
| i |
: insert: start adding text before range. (Eg.: 4i) |
| c |
: change: change the addressed line. (Eg.: 4c) |
| d |
: delete: deletes range. (Eg.: 4d) |
| m |
: move: move source rangeafter target range. (Eg.: 4m5) |
| t |
: copy (transfer): copy source rangeafter target range. (Eg.: 4t6) |
| j |
: join: join addressed lines. (Eg.: 4,5j) |
| kl |
: mark an rangewith a lower-case letter. (Eg.: 4ka) |
| 'l |
: set current rangeto the rangemarked as l. (Eg.: 'a > will set
current rangeto 4) |
| e [filename] |
: edit file, if no file is specified it reloads the current file. |
| E |
: same as e but discards changes if any. |
| [range]w [file] |
: writes to file, if no filename is specified, writes the current file,
if rangeis specified, writes the rangeto current/specified filename. If
the file exists, it's overwritten. |
| [range]W [file] |
: same as w but appends to filename if the file exists. |
| % |
: represents the current file. |
| f |
: sets/shows the current filename. |
| g |
: search globally for matches. |
| v |
: search globally for non-matching lines. |
| s |
: normally, substitution is called with /pattern/, but any character can
be used (Eg.: |pattern| or @pattern@).
this is useful when substituting paths or
variables.
|
| z[n] |
: scroll.
- if n is specified, scroll the number of lines specified by n.
- If n is not specified and zn has been run before, remember the number
of lines used before.
- if n is not specified and zn has not been run before, scroll the
number of lines determined by the terminal size.
- n: add n to show line numbers. (Eg.: z5n)
|
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It's important to always have the . and w on any interactive
commands.
To add a . on a script without ending the input, enter
\. and then substitute the \ :
,s@^\\.$@.@
$ ed script
a
a
this line is appended
\.
w
.
,s@^\\.$@.@
w
q
$ cat script
a
this line is appended
.
w
$ cat test.txt
line 1
$ ed - test.txt < script
$ cat test.txt
line 1
this line is appended
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- repeat ed commands
- remember last range.
- command list
- undo command list
- learn G