Computer systems and cloud computing ubuntu 1 continued to write C programs

ubuntu write a C program

root@LAPTOP-TOR03L7R:~# touch flow.c
root@LAPTOP-TOR03L7R:~# vim flow.c
root@LAPTOP-TOR03L7R:~# gcc flow.c
flow.c: In function ‘main’:
flow.c:5:13: warning: integer overflow in expression [-Woverflow]
int b=50000*50000;

 

root@LAPTOP-TOR03L7R:~# touch beau.c
root@LAPTOP-TOR03L7R:~# vim beau.c
root@LAPTOP-TOR03L7R:~# g++ beau.c -o beau

root@LAPTOP-TOR03L7R:~# ./beau

beautifulroot@LAPTOP-TOR03L7R:~#

1.touch hello.c source code to create a new file called hello.c

2.vim programming hello.c press i to enter insert mode 

                                      After the top left corner of the keyboard to write the Esc key, type: wq and press Enter to exit the programming mode

3.gcc hello.c The program compiler for compiling no error display

                                   Such as compilation errors found will be listed in the next few lines

Can also be used g ++ hello.c -o hello

4. Run the program compiling compiled result appears correct ./hello