Snippets are one of my favorite parts of programming. The shear endless depth of command line tricks and customizations is so exciting! Here is a collection I maintain for myself to comeback to.
Also navigable by list of snippet types here.
Sometimes typing out awk '{print $1}' just takes too long. Today I decovered choose.
It makes selecting a field from an output much faster.
Now instead of:
$ gss | rg awk | awk '{ print $2 }' | xargs hx
I run:
$ gss | rg awk | choose 1 | xargs hx
After moving some GPG keys to a new computer I kept getting these trust warnings.
It is NOT certain that the key belongs to the person named
in the user ID.If you * really * know what you are doing,
you may answer the next question with yes.
Use this key anyway? (y/N)
To solve this one has to edit the key and set a trust level.
$ gpg--edit - key 't@coolsite.com'
trust
5
This will generate a six char password.
$ openssl rand -base64 6
s3u3fi
I’d like to build a new nest.js command based off a file I deleted last week.
Here is how I go about getting that old file back via git restore
Step 1, find the file:
$ git log --name-only
/command
fd8bc2a6 Merge branch 'XXX-1111-remove-search-queue' into 'main'
fd07ddc3 XXX-1111: Remove search queue
apps/cli/src/cli.module.ts
apps/cli/src/db/backfill-search-queue.command.ts
apps/cli/src/db/db.module.ts
...
Step 2, restore the file:
$ git restore --source fd07ddc3~1 apps/cli/src/db/backfill-search-queue.command.ts
Note the ~1. The file in question was deleted in commit fd07ddc3, so to
restore it we need to go one commit before it was deleted. ~1 does exactly
that.
With help of ChatGPT I discovered this unix gem today.
Given two files
main_deck.txt:
1 Abzan Charm
1 Arcane Bombardment
1 Arcane Sanctum
1 Arcane Signet
1 Archmage Emeritus
1 Bant Charm
1 Boros Charm
1 Bring to Light
1 Brokers Charm
1 Brokers Confluence
considering.txt:
1 Abzan Charm
1 Arcane Sanctum
1 Taigam, Ojutai Master
1 Archmage Emeritus
1 Boros Charm
1 Tamanoa
1 Time Wipe
1 Trap Essence
1 Brokers Confluence
running
$ comm -23 <(cat considering.txt | sort) <(cat main_deck.txt | sort)
1 Taigam, Ojutai Master
1 Tamanoa
1 Time Wipe
1 Trap Essence
Returns a list of cards that are unique to the considering.txt.
If your text files are sorted you can skip the <(cat ..) magic.
And yes. I’m using the cli two help build Magic the Gathering Decks!
Deep in a emac tutorial I discovered this hidden gem.
“percol adds flavor of interactive selection to the traditional pipe concept on UNIX.”
You can simply place it in the middle of a pipe and pick the options you want.
Example:
$ BUCKET="s3://cool-bucket" aws s3 ls $BUCKET | awk '{print $4}' | percol |sed "s;^;${BUCKET}/;" | xargs aws s3 rm
delete: ...
demo
Working with with sitemap xml files in AWS S3 today and the default sort is a bit hard to read.
Example:
$ aws s3 ls s3://cool-bucket | awk '{print $4}'
sitemap.brands.xml
sitemap.episode.0.xml
sitemap.episode.1.xml
sitemap.episode.10.xml
sitemap.episode.11.xml
sitemap.episode.2.xml
sitemap.episode.20.xml
sitemap.episode.21.xml
sitemap.episode.22.xml
sitemap.episode.23.xml
...
Using sort -V it sorts the lines numerically!
Working example:
$ aws s3 ls s3://cool-bucket | awk '{print $4}' | sort -V
sitemap.brands.xml
sitemap.xml
sitemap.episode.0.xml
sitemap.episode.1.xml
sitemap.episode.2.xml
sitemap.episode.3.xml
sitemap.episode.4.xml
sitemap.episode.5.xml
sitemap.episode.6.xml
sitemap.episode.7.xml
...
Simply adding:
[ -f ./.nvmrc ] && nvm use
to your .bashrc or .zshrc
Will automatically run the nvm use command should you start the shell in a dir with a .nvmrc file.
Easy clean up branches from local that are old or already merged on remote.
$ git trim -s -p
Recently I noticed some of the images on my site had GPS metadata info. Thats not very private! So I did some googling and found this solution.
$ exiftool -GPS*= $(fd -e jpg -e png -e jpeg)