hassanejaz

#Linux Cheat Sheet

##File Commands:

• ls – directory listing
• ls -al – formatted listing with hidden files
• cd dir - change directory to dir
• cd – change to home
• pwd – show current directory
• mkdir dir – create a directory dir
• rm file – delete file

hassanejaz

### Keybase proof

I hereby claim:

  * I am hassanejaz on github.
  * I am hassanejaz (https://keybase.io/hassanejaz) on keybase.
  * I have a public key ASCT9xZbBh4am9_VW06pOTrvp5RQgD7LdF9zezcloLtUdQo

To claim this, I am signing this object:

hassanejaz

#!/bin/bash

# Non-scripted Tasks:
#   - Configure device name in Preferences > Sharing
#   - Enable Remote Login & Remote Management in Preferences > Sharing
#   - Enable automatic login/disable password after sleep in Preferences > Security & Privacy > General
#   - Disable screensaver/sleep in Preferences > Energy Saver
#   - Disable spotlight indexing of home directory
#   - Add a runner in GitHub UI to grab your token https://github.com/<org>/<repo>/settings/actions/add-new-runner

hassanejaz

Video Solution	Category	Name	Link	Notes
https://youtu.be/KLlXCFG5TnA	Arrays	Two Sum	https://leetcode.com/problems/two-sum/	use hash map to instantly check for difference value, map will add index of last occurrence of a num, don’t use same element twice;
https://youtu.be/1pkOgXD63yU	Arrays	Best Time to Buy and Sell Stock	https://leetcode.com/problems/best-time-to-buy-and-sell-stock/	find local min and search for local max, sliding window;
https://youtu.be/3OamzN90kPg	Arrays	Contains Duplicate	https://leetcode.com/problems/contains-duplicate/	hashset to get unique values in array, to check for duplicates easily
https://youtu.be/bNvIQI2wAjk	Arrays	Product of Array Except Self	https://leetcode.com/problems/product-of-array-except-self/	make two passes, first in-order, second in-reverse, to compute products
https://youtu.be/5WZl3MMT0Eg	Arrays	Maximum Subarray	https://leetcode.com/problems/maximum-subarray/	pattern: prev subarray cant be negative, dynamic programming: compute max sum for each prefix
https://youtu.