This is a cheat sheet for how to perform various actions to ZSH, which can be tricky to find on the web as the syntax is not intuitive and it is generally not very well-documented.
| Description | Syntax |
|---|---|
| Get the length of a string | ${#VARNAME} |
| Get a single character | ${VARNAME[index]} |
| /* | |
| Instagram API: send direct messages from a web browser | |
| Since April 2020, Instagram has a web version to send and read direct messages so my Instagram scripts are not longer needed and I would not recommend using them unless you really need it, to avoid being banned | |
| (never happened to me with Instagram but WhatsApp is owned by Facebook also and they did it to users registering from an unofficial app like yowsup: https://github.com/tgalal/yowsup/commit/88b8ad9581fa22dac330ee3a05fec4e485dfa634#diff-b335630551682c19a781afebcf4d07bf978fb1f8ac04c6bf87428ed5106870f5) | |
| For browser setup, see script instagram-api_direct_messages_backup.js | |
| Instagram web version sessionid cookie does not allow sending messages so we need to log in manually | |
| Signature should match signed_body data (using HMAC-SHA256 with private key) but wrong signature or key may work also. |
| package main | |
| import "fmt" | |
| // number of desired workers | |
| const nWorkers = 10 | |
| func main() { | |
| // make a buffered channel with the space for my 10 workers | |
| workerChan := make(chan *worker, nWorkers) |
error while loading shared libraries: libnss3.so: cannot open shared object file: No such file or directory
sudo apt-get install libnss3error while loading shared libraries: libXss.so.1: cannot open shared object file: No such file or directory
sudo apt-get install libxss1
from https://stackoverflow.com/questions/25774999/nginx-stat-failed-13-permission-denied
Nginx operates within the directory, so if you can't cd to that directory from the nginx user then it will fail (as does the stat command in your log). Make sure the www-user can cd all the way to the /username/test/static. You can confirm that the stat will fail or succeed by running
sudo -u www-data stat /username/test/static
download & install go in your home dir
mkdir ~/src
wget "https://storage.googleapis.com/golang/go1.4.2.linux-amd64.tar.gz"
tar -xvf go1.4.2.linux-amd64.tar.gz
export GOROOT="$HOME/src/go"
export PATH="$PATH:$GOROOT/bin"
create a directory where go would download & install packages using go get