Questions tagged [ed]

Question 1

Consider the following commands: $ awk 'BEGIN { system("ed") }' q $ echo hello | awk 'BEGIN { system("ed") }' ? $ In the first case, I was able run ed and then stay in the editor ...

Question 2

I sourced the /usr/share/doc/fzf/examples/key-bindings.bash file so fzf works in Bash; but how do you get that to work with the rlwrap ed approach?

Question 3

Consider a file with an AsciiDoc ordered list like this: . one + ---- echo hello # arbitrary lines... echo world ---- . two . three How do you move the code block to some arbitrary place in the list (...

Question 4

On my macOS and Linux systems, I run ed with alias ed='rlwrap ed'. On macOS with rlwrap 0.46.1 (2022) I can freely create files with tabs like: $ ed a foo<TAB>bar but on my Linux systems with ...

Question 5

Given the following file: foo bar baz this and that then I can easily "unfold" those lines with global substitution with ed(1): g/ /s//\ /g which gives: foo bar baz this and that But what'...

Question 6

I am running GNU Ed on Fedora Linux. The GNU Ed manual cryptically refers to an 'r' suffix for the s command, to be distinguished from the 'r' command. All it says about it is the following: The ...

Question 7

In Ed I can test for whitespace with this regex: g/ *$/p. I don't suppose there is a way of showing whitespace, perhaps by passing the contents of the buffer to another shell command?

Question 8

Is there a way to have ed create backups of the file currently loaded into the buffer. On occasion I have inadvertently overwritten my file and found it's not recoverable. I.e. making a backup file ...

Question 9

Consider my humble hello.html file, edited with mighty ed: $ ed hello.html 28 ,p <title>Hello world!</title> What's your general approach to edit inside that title HTML tag (bonus if you ...

Question 10

I'm totally mystified why I can't print this range with ed when there are two ranges—see file2.tf file—; but I can print when there is only one range—see file1.tf file—and I can print with the gsed (...

Question 11

I have a file with permissions 666 so users can edit it with a different script. This works. I need to script to remove the last line of the file, however this is not working as using something like ...

Question 12

I'm looking for a way to edit files with a script that will provide an alternate definition for a variable in C and this redefinition is controlled by a compiler D-flag using a POSIX application that ...

Question 13

I am running GNU ed 1.18 on Fedora Linux 36. I run ed with rlwrap also installed which gives me access to my command history. My .ed_history file appears to have a size limit of 300 lines. I would ...

Question 14

In ed there is the useful c command which allows one to make changes to a specific line. (Using rlwrap as well allows for easier changes, once a line has already been changed, because one can use the ...

Question 15

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Questions tagged [ed]

Why can't I run an interactive command in awk in a pipeline?

How do you put fzf CTRL-R into rlwrap ed?

With ed, reach to the next occurrence

How to use tabs with `rlwrap ed`?

With ed, how do you fold and unfold lines?

A use case for the 'r' suffix to the substitution command in GNU Ed?

Showing whitespace in Ed

Can the ed editor be configured to automatically create backup files?

Edit inside an HTML tag with ed(1)

Why can't I print this regex range with ed(1)?

Remove last line of file by any user, owned by root

POSIX way to add content around a line in a file

How to increase the size of the .ed_history file

Inserting the line to be changed in ed

Replacing strange characters in a sed command

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