sed is a stream editor. A stream editor is used to perform basic text transformations on an input stream (a file or input from a pipeline). While in some ways similar to an editor which permits scripted edits (such as ed), sed works by making only one pass over the input(s), and is consequently more efficient. But it is sed’s ability to filter text in a pipeline which particularly distinguishes it from other types of editors.
If your system has vi or a clone, try vi -e, or, if the symlink is set up, ex. Technically that’s vi in ex mode, not edper-se but it’s about as similar as you’re going to get without a lot of pointless bother.
That is, it’s an editor that works in almost exactly the same way as the original, but it’s by somebody else.
ex is to vi as vi is to vim, or C to C++.
That is, the latter grew out of and improved upon the former, but you can still use them like their forerunners if you really want, which is why vi has an ex mode and why you can still use pointers in C++ if you’re sufficiently warped.
Yes ed begat sed, but sed works differently. It didn’t replace ed. It did a different job.
Ed loads the file into a buffer which you edit in a random access fashion and then save. Sed collects a list of commands and then streams the file line by line, executing the commands as they match lines. In your example nothing happens until you’ve entered the whole editing script.
Somehow, despite being the standard it doesn’t come installed by default in any distro I’ve tried.
They all insist you use
sed… that bloated thing!I love the way they are selling this
https://www.gnu.org/software/sed/manual/sed.html
If your system has vi or a clone, try
vi -e, or, if the symlink is set up,ex. Technically that’s vi inexmode, notedper-se but it’s about as similar as you’re going to get without a lot of pointless bother.is that vim’s evil mode?
Comparison time!
exis toedasnanois topicoThat is, it’s an editor that works in almost exactly the same way as the original, but it’s by somebody else.
exis toviasviis tovim, or C to C++.That is, the latter grew out of and improved upon the former, but you can still use them like their forerunners if you really want, which is why
vihas anexmode and why you can still use pointers in C++ if you’re sufficiently warped.ed and sed arre different things. One edits files in place, interactively. The other edits streams i.e.batch processing.
ed is the precursor to vi. Similar commands. It’s just you can only work on one line at a time.
You want
sed -i -f -ed is also the precursor of sed, and of some other dozen of commands.
Yes ed begat sed, but sed works differently. It didn’t replace ed. It did a different job.
Ed loads the file into a buffer which you edit in a random access fashion and then save. Sed collects a list of commands and then streams the file line by line, executing the commands as they match lines. In your example nothing happens until you’ve entered the whole editing script.
It’s like nano Vs the original pico