00:08:14    Shih-Chieh Hsu:    It will be useful to share screen.
00:10:00    Shih-Chieh Hsu:    why don’t we read manual now
00:10:13    Shih-Chieh Hsu:    Can you type the command again
00:10:22    Shih-Chieh Hsu:    it only has 5 options.
00:10:28    Shih-Chieh Hsu:    Read it and let us know what you think.
00:10:41    Shih-Chieh Hsu:    not so many. just a few options
00:10:52    Shih-Chieh Hsu:    Beverly
00:10:55    Shih-Chieh Hsu:    what do you think?
00:10:59    Shih-Chieh Hsu:    after reading the manual
00:11:07    Shih-Chieh Hsu:    Anyone else can comment
00:11:49    Shih-Chieh Hsu:    You can also google this command
00:11:50    Shih-Chieh Hsu:    https://linux.die.net/man/1/wc
00:13:06    Shih-Chieh Hsu:    Beverly, you asked about what Standard Output is
00:13:14    Shih-Chieh Hsu:    Remember, Google is our good friend
00:13:15    Shih-Chieh Hsu:    http://www.linfo.org/standard_output.html
00:13:24    Beverly Shih:    Thank you
00:13:57    Kaylin Ingalls (She/her):    I can’t talk out loud but I am in the middle of the shell one
00:14:00    Riley Maloney:    for the shell notebook should I be working in the normal terminal, PowerShell, … (on windows)
00:14:02    Kaylin Ingalls (She/her):    No questions
00:14:13    Kaylin Ingalls (She/her):    :) sorry about not being able to be unmute
00:14:44    Shih-Chieh Hsu:    you need to use linux environment in Windoes
00:14:46    Riley Maloney:    alright hahaha I was wondering why I couldn't do a lot of stuff
00:14:59    Haikun Xue:    do I need a Linux vm for it?
00:15:03    Shih-Chieh Hsu:    All the exercise here is using Linux shell
00:15:19    Shih-Chieh Hsu:    You can install docker container to get linux shell
00:15:32    Alexandre Ramirez:    how do u use ls to select all data containing a or b?
00:15:42    Randall Scarborough, RSA, 5:    the docker instructions were clear and easy for me to get bash working
00:17:49    Shih-Chieh Hsu:    Bevelyn, are you using Mac OS?
00:18:04    Shih-Chieh Hsu:    The MacOS has no -L option for wc command
00:18:20    Shih-Chieh Hsu:    Again, google is our good friend. Check this post:
00:18:21    Shih-Chieh Hsu:    https://stackoverflow.com/questions/1655372/longest-line-in-a-file
00:18:25    Haikun Xue:    so all the notebooks are on Linux?
00:18:51    Shih-Chieh Hsu:    exactly speaking, all the exercise should be done on shell
00:18:57    Shih-Chieh Hsu:    either bash shell or tcsh
00:19:02    Haikun Xue:    ok
00:19:06    Shih-Chieh Hsu:    You can use Google Colab
00:19:42    Shih-Chieh Hsu:    Yes
00:20:18    Shih-Chieh Hsu:    https://stackoverflow.com/questions/59318692/how-can-i-run-shell-terminal-in-google-colab
00:21:31    Riley Maloney:    I just realized I have Ubuntu on my windows, will that work in place of docker
00:22:17    Haoran Zhao:    WSL on windows
00:23:47    Alexandre Ramirez:    What command do u need to do to answer this question? Does it involve /./? List all of the files in /bin that contain the letter a or the letter b
00:26:12    Shih-Chieh Hsu:    Can Alexandre Ramirez share the screen?
00:28:27    Alexandre Ramirez:    Thank you!
00:29:02    Shih-Chieh Hsu:    Again, google is our good friend
00:29:03    Shih-Chieh Hsu:    https://geek-university.com/linux/wildcard/
00:29:17    Shih-Chieh Hsu:    You want to learn more about what wildcard mean in linux system.
00:30:53    Shih-Chieh Hsu:    To learn more environment variable, check this
00:30:53    Shih-Chieh Hsu:    https://geek-university.com/linux/environment-variables/
00:31:30    Randall Scarborough, RSA, 5:    I was able to do that using ls *a*b* *b*a*
00:31:47    Shih-Chieh Hsu:    yes. that was the answer
00:32:14    Shih-Chieh Hsu:    All these questions can be discussed in the Discord