Skip to content

Instantly share code, notes, and snippets.

Screen Quick Reference

Basic

Description Command
Start a new session with session name screen -S <session_name>
List running sessions / screens screen -ls
Attach to a running session screen -x
Attach to a running session with name screen -r
@blakme
blakme / latency.txt
Created February 12, 2021 02:58 — forked from eshelman/latency.txt
HPC-oriented Latency Numbers Every Programmer Should Know
Latency Comparison Numbers
--------------------------
L1 cache reference/hit 1.5 ns 4 cycles
Floating-point add/mult/FMA operation 1.5 ns 4 cycles
L2 cache reference/hit 5 ns 12 ~ 17 cycles
Branch mispredict 6 ns 15 ~ 20 cycles
L3 cache hit (unshared cache line) 16 ns 42 cycles
L3 cache hit (shared line in another core) 25 ns 65 cycles
Mutex lock/unlock 25 ns
L3 cache hit (modified in another core) 29 ns 75 cycles
==========================================
CURL COMMAND
==========================================
Format curl [options] [URL...]
Quick Ref:
curl -X POST http://example.com/ <= Method option and URL (Options come before or after URL)
-H "Authorization: <data>" <= Add HTTP Header (like Authorization)
@blakme
blakme / tmux.cheat
Created August 8, 2014 08:25 — forked from afair/tmux.cheat
========================================== ==========================================
TMUX COMMAND WINDOW (TAB)
========================================== ==========================================
List tmux ls List ^b w
New -s <session> Create ^b c
Attach att -t <session> Rename ^b , <name>
Rename rename-session -t <old> <new> Last ^b l (lower-L)
Kill kill-session -t <session> Close ^b &