Ian Finch ianfinch
ianfinch
/ js-pass-by-value.txt
Last active
July 8, 2022 07:31
Example of Javascript pass by value side effects
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| // Function to change the passed in variable | |
| testFn0 = obj => { obj = {}; } | |
| // Function to change level one variable | |
| testFn1 = obj => { obj.b = 999; } | |
| // Function to change level two variable | |
| testFn2 = obj => { obj.b.b = 999; } | |
| // Directly changing the passed in variable should not affect it |
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| docker run -d \ | |
| -p 8080:80 \ | |
| -e REGISTRY_HOST=$REGISTRY_HOST_IP \ | |
| -e REGISTRY_PORT=$REGISTRY_PORT \ | |
| -e REGISTRY_PROTOCOL=http \ | |
| -e SSL_VERIFY=false \ | |
| -e REGISTRY_ALLOW_DELETE=true \ | |
| parabuzzle/craneoperator:latest |
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| # See https://github.com/regolith-linux/regolith-desktop/issues/32 | |
| echo "deb http://ppa.launchpad.net/regolith-linux/release/ubuntu bionic main" > /etc/apt/sources.list.d/regolith.list | |
| apt-key adv --keyserver keyserver.ubuntu.com --recv-keys EFC31B0AE9F1000B38E37FC8C0930F305A0E0FEF | |
| apt update | |
| apt install devscripts build-essential cdbs libxcb1-dev gperf pkg-config xutils-dev | |
| # create setup folder | |
| mkdir rego-setup && cd rego-setup/ | |
| wget http://archive.ubuntu.com/ubuntu/pool/main/x/xcb-util/xcb-util_0.4.0.orig.tar.gz | |
| wget http://archive.ubuntu.com/ubuntu/pool/main/x/xcb-util/xcb-util_0.4.0-0ubuntu3.debian.tar.xz |
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| #!/bin/sh | |
| yum update -y | |
| yum install httpd -y | |
| service httpd start | |
| chkconfig httpd on | |
| echo "<html><head><title>Ian's Web Server</title></head><body><h1>Ian's Web Server</h1></body></html>" > /var/www/html/index.html |
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| Export image as tar file .............. docker save -o <tar file> <docker image> | |
| Import image from tar file ............ docker load --input <tar file> |
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| See all remotes ....................... git remote -v | |
| Fetch a specific remote ............... git fetch <remote name> | |
| Compare remote with local files ....... git diff --name-only remotes/<remote name>/master | |
| Compare remote with main repo ......... git diff --name-only master remotes/<remote name>/master | |
| Squash commits ........................ git rebase -i <after this commit> | |
| Squash commits into initial commit .... git rebase -i --root | |
| Force submit after squashes ........... git push origin +master | |
| Replace "pick" with "reword" to change the commit message | |
| Replace "pick" with "squash" to combine a commit with the last "pick" commit |
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| Install dependencies ... | |
| sudo apt-get install hfsplus hfsutils hfsprogs gdisk | |
| To mount, add "-t hfsplus" to the mount command |
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| Find USB device ... | |
| $ ls -l /dev/disk/by-uuid/ | |
| total 0 | |
| lrwxrwxrwx 1 root root 10 Feb 9 01:26 093F-C00F -> ../../sda1 | |
| lrwxrwxrwx 1 root root 15 Feb 9 01:26 2ab3f8e1-7dc6-43f5-b0db-dd8364731d4e -> ../../mmcblk0p2 | |
| lrwxrwxrwx 1 root root 15 Feb 9 01:26 5203-D7B4 -> ../../mmcblk0p1 | |
| The one we are looking for is "/sda" |
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| # Based on https://dev.to/rohansawant/installing-docker-and-docker-compose-on-the-raspberry-pi-in-5-simple-steps-3mgl | |
| curl -sSL https://get.docker.com | sh | |
| sudo usermod -aG docker $USER | |
| # Reboot | |
| docker run hello-world | |
| sudo apt-get install libffi-dev libssl-dev |
ianfinch
/ replace_pi_user.txt
Last active
December 17, 2019 12:27
Setup new user to replace pi user
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| user="whoever" | |
| adduser $user | |
| for group in $(groups pi | cut -d':' -f2 ) ; do | |
| if [[ "$group" != "pi" ]] ; then | |
| adduser $user $group | |
| fi | |
| done |
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