I had to make modifications on a remote machine.But i did not know the location where web server files html or php are located.
ssh username@remotehost
password: #####
bash$cat /etc/httpd/conf/httpd.conf | grep DocumentRoot
# DocumentRoot: The directory out of which you will serve your
DocumentRoot "/var/www/html"
cd /var/www/html
There I was in the directory to proceed further,
A package with the sequence 4.17.4 is interpreted as Major release, Minor Release and patch.
^4.17.4 - keep major version update minor version
~4.17.4 - keep minor version update patch
4.17.4 - exact version
* - latest version
XHR stands for XmlHttpRequest object.
This is the traditional way of accessing data asynchronously.
HTML file has a button that we will use to trigger the event.
!DOCTYPE html>We have all heard of /usr/bin /usr/local/bin and so on. Do we know how and why they are organized?Let's get started
/bin - user utilities - cd ls cat bash cp pwd - all these are here. Did you know?
/sbin - s for system program and administration
ping mount reboot shutdown ifconfig - ring a bell?
/usr/bin - non-system programs -
awk base64 curl emacs find grep ssh php vim perl php python rake rails sed
/usr/sbin - system daemons(background processes) & system utilities only
chown chmod cron httpd sendmail sshd apachectl - sytem utilities that are user specific
/usr/local/bin - The programs installed over the base operating systems due to a dmg file installation or using a package manager might land up here.
Example: Lets say you install mysql it would be installed in /usr/local/mysql/bin. Similarly php would be installed in /usr/local/php
We all use cd, ls and many such commands in the macOS Terminal day in and day out. I am better than yesterday after I learnt this today. I know where to search my executables.
Credits & Thanks to :https://medium.com/@jalendport/what-exactly-is-your-shell-path-2f076f02deb4
