103 lines
2 KiB
Markdown
103 lines
2 KiB
Markdown
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% CHEATSHEET(7) Version 1.0 | Cheatsheet for stuff Hugh forgets
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% Hugh Rundle
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NAME
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====
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**cheatsheet** - tips and reminders for Hugh.
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DESCRIPTION
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===========
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This is a man page to remind Hugh of some basic commands and techniques he uses but forgets a lot in git, Python etc.
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EXAMPLES
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========
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**git**
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`git branch -d [name of branch to delete]`
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: Delete a git branch
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`git reset [file]`
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: *Unstage* file but retain contents
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`git _reset_ [commit]`
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: *Undo* all commits after *commit*, preserving changes locally
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`git reset HEAD --hard`
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: *Undo* all changes to tracked files (since last commit)
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`git clone [url]`
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: Download project and its history
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`git merge [branch]`
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: Merge changes from *branch* into the current local branch
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`git fetch [remote] pull/[id]/head:[branchname]`
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: Where *remote* is the remote name you want to fetch from, *id* is the PR id, and *branchname* is the name you want to give to the new LOCAL branch you will create with this command. e.g. *fetch bookwyrm pull/999/head:testing*
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**python**
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`python -m http.server [port]`
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: Spins up a web server with file root wherever you called this from, on *port*
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`venv`
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: TODO
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**Docker**
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`docker volume prune`
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: Delete all volumes not being used by a currently-running process.
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`docker exec -d [container] [command]`
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: Execute a *command* inside the running *container* as a daemon (background task)
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**hashes and random strings**
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`openssl rand -hex [number]`
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: Create a random string with *number* of bytes, using hex
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`openssl rand -base64 [number]`
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: Create a random string with *number* of bytes, using base64
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`echo -n "string to hash" | md5`
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: returns an md5 hash of the string
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`md5 big_huge_file.iso`
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: returns md5 hash of the file
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`openssl md5 big_huge_file.iso`
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: also returns md5 hash of the file
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**Duck Duck Go**
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*https://duckduckgo.com/?q=password+strong+32*
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: Strong random password
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*https://duckduckgo.com/?q=qr+code+your+text+here*
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: Get a QR code for returning whatever text you entered
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SEE ALSO
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====
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git(1) python(1) md5(1)
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