C Programming Code Examples

C > Gnu-Linux Code Examples

Appending, writing files in c programming language. Append the source target. Open the first file for reading. The second file for writing. Copy data from the first file to the

C Convert a Time value to and from UTC

Status epilepticus, print help. Extract UTC time from string. Convert UTC to time string. Print help and exit. Convert INT utc value to timestring. Convert STR to INT utc time...

Convert a UTC time value

Convert unix to dos newline

Copy file using mmap()

Create [alpha]sorted directory listing

Create temporary file

Fcntl, locking files

Get parent pid

Getopt example

Node, machine, version, etc.. info

Print some General File info in C program

Filename, device, inode, protection, number of hard links, user ID of owner, group ID of owner, device type, total size, blocksize for filesystem I/O, number of blocks allocated,

C Programming Recursive Directory Walk

Declare the object is a file, declare directory, declare directory that could not be read, symbolic link, The object is NOT a symbolic link and is one for, which stat() could not be

Regular expression

C Program Code to Show some pipe usage

Pipe creates a pair of file descriptors. Create a child process. Don't need pipe file descriptor. Since we have no input, only output for this process. Closing this file descriptor. Fire up...

Show,access enviroment var's

Signal, catch Ctrl-C

Some cd-rom functions

Strcat, concatenate strings, alloc mem

Syslog hello

System uptime

Terminal password example

Userinfo on x os from C

Using pipes as file streams, fdopen()

Using the terminfo database

Va_arg, variable argument lists

Va_arg, vsnprintf(), concatenate strings

What day of the week is July 4, 2001