Doing a reverse DNS lookup by typing out the IP address in reverse, plus adding .in-addr.arpa to the end is tedious, but fortunately dig has the -x option which makes that process much simpler as one can just feed it a normal IP address.
* psql: Improve page
- Removed * , this was causing problems with rendering. The node client was
gobbling up the entire word !
- Changed 'query' to 'command' as it can be a postgres db command too.
- Used the -f flag for running multiple commands as its a better and scalable
option.
* Addressing comments
* Replacing against with on
- Mentioning the default user
* rm: various tweaks for clarity; add -v
changed some descriptions and tokens to make the meaning of each command clearer, and facilitate memorization of the flags
added the -v (verbose) option
* use a more intuitive pattern for the -i option
* Applying the snake_case convention throughout the repo
- Also removing the file extension where not needed
- Adding {{ }} on a few old pages
* Addressing concerns
- Added {{ }} where they were missed out
- Removed spaces inside {{ }}
- Reverting "file" to "filename" to make it clearer
* Fixing the comments on nc page
Numbered field references have been used in the first two examples,
so it's quite reasonable to take the opportunity to introduce a new (and quite useful!) concept.
In addition, this commit makes a few tweaks to the example descriptions, to make them clearer.
This involves another command, but it's such a natural extension of uniq's `-c` functionality that I feel it's warranted to show here.
We should probably add a sort to the -c example too, because uniq only deals with *sequential* line repetitions.
By default, grep already uses regular expressions when searching.
The example `grep -e {{^regex$}} {{path/to/file}}` is the same as `grep {{^regex$}} {{path/to/file}}`.
However, because of the comment about extended regular expressions, I mistakenly assumed `-e` was the option to enable it.
I believe most people would refer to `tldr` in this use case looking for the `-E` extended regular expressions.
With this in mind, I believe that example would be better rephrased as this pull request makes it.
This chage adds examples for exporting public and private GPG keys.
This is particularly useful for backing up keys. In both cases they have
been output as ASCII armored text with the `--armor` flag to make the
output easier to work with.
