kayoch1n

// gcc getifaddrs_linux.c -o getifaddrs_linux
// ./getifaddrs_linux
// https://stackoverflow.com/a/12878352

#include <stdlib.h>     //exit()
#include <stdio.h>      //printf(),perror()
#include <string.h>     //memset
#include <ifaddrs.h>    //struct ifaddrs,getifaddrs()
#include <arpa/inet.h>  //INET6_ADDRSTRLEN,inet_ntop()
#include <netinet/in.h> //sockaddr_in,sockaddr_in6

kayoch1n

#!/bin/sh

# keep ssh shell alive
# https://stackoverflow.com/a/29458738/8706476
ssh ubuntu@xxxx -o ServerAliveInterval=60

kayoch1n

#!/bin/sh
# https://ubuntu.com/server/docs/service-nfs

# client
# https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/4/html/reference_guide/s2-nfs-client-config-options
sudo mount 172.16.0.7:/home/ubuntu/nfsroot /opt/172-16-0-7/ -o nfsvers=2
cat /proc/mounts | grep nfsroot
cat /opt/172-16-0-7/README.md

# sudo umount /opt/172-16-0-7/

kayoch1n

# http://webapps.stackexchange.com/questions/39587/view-estimated-size-of-github-repository-before-cloning
# tested on macOS
echo https://github.com/torvalds/linux.git | perl -ne 'print $1 if m!([^/]+/[^/]+?)(?:\.git)?$!' | xargs -I{} curl -s -k https://api.github.com/repos/'{}' | grep size

# output: 
# "size": 1746294,