ED_EXAMPLES(oh)			     LOCAL		       ED_EXAMPLES(oh)

ed_examples - interactive edit, scripting and tips

   interactive_edit
     Commands G and V work the same as the lower case version, but edits each
     match interactively.
     1.	  G/re/
     2.	  Returns the first match.
     3.	  User edits the match.
     4.	  ed displays the next match.
     5.	  The user can edit the match or enter & to repeat the last non-empty
	  command list.
     $ ed -p :
     :a
     line 1
     line 2
     line 3
     .
     :G/l/
     line 1
     s/n/a/
     line 2
     s/e/o/
     line 3
     &
     :,n
     liae 1
     lino 2
     lino 3

   shell_commands
     The following commands can be used with shell commands:

     e	  : edit output of command		: e !command
     r	  : read output of command into buffer	: [range]r !command
     w	  : write addressed lines into command. : [range]w !command
     $ ed -p :
     :e !ls
     :,n
     dir1
     dir2
     :r !ls dir1
     :,n
     dir1
     dir2
     file1
     :w !xargs -n1 echo
     dir1
     dir2
     file1

SPLIT_LINES
     $ ed t
     a
     hello bye
     .
     w
     10
     w !awk 'sub("o ","o\n",$0);' > %
     e
     10
     ,n
     hello
     bye

SCRIPTING
     NOTE: It's important to always have the. and w on any interactive
     commands.
       To add a . on a script without ending the input, one option is to enter
     \. and then substitute the \ : ,s@^\\.$@.@

   example
     $ 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

TODO
     - Translate to Spanish.

SEE ALSO
     ed(oh)

   links
     - Solene - ed split lines:
     https://dataswamp.org/~solene/2018-12-04-fun-splitting-line.html
     - Example ed (Comparing and Merging Files):
     https://www.gnu.org/software/diffutils/manual/html_node/Example-ed.html
     - ed Scripts (Comparing and Merging Files):
     https://www.gnu.org/software/diffutils/manual/html_node/ed-Scripts.html
     - unix.com - Ed command execution in script file:
     https://www.unix.com/shell-programming-and-scripting/233897-ed-command-execution-script-file.html

HISTORY
     2026-06-02 : Created.

AUTHORS
     ohazot(oh) | about(oh) | ohazot.com: https://ohazot.com
     <admin@ohazot.com>

OpenBSD 7.9			  2026-06-02		       ED_EXAMPLES(oh)