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adds an alternative to delete lines using sed #14

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adds an alternative to delete lines using sed #14

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adds an alternative to delete lines using sed
dpshelio Jun 2, 2020
ad03e7b
📝 Improves explanation about `sed` command
dpshelio Jun 29, 2020
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9 changes: 9 additions & 0 deletions mkdocs-project-dir/docs/howto.md
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Expand Up @@ -110,6 +110,15 @@ press `Ctrl` and then the letter `o`.
# to open the file for editing in pico
pico ~/.ssh/known_hosts
```

Alternativaly, you can use `sed` to remove that line:
```
sed -i.bak '11d' ~/.ssh/known_hosts
```
where 11 refers to the line number you want to delete (`d`). With `-i.bak` we are saving the
original file with a `.bak` extension. If you don't want to keep a backup copy remove `.bak` from
the `-i` argument.

Once you have removed the old host key you will be able to ssh in again. The first time
you log in to an unknown server you will get a message like this:
```
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