Thanks Don!
I am not a professional coder, and this code discouraged me very much to catch C by myself. I do not want to give up yet. In the original "kseq.h" header line 220-224, 226 and 228 - 233. After I removed the escape backslash the three #define become:
For the first and third #define, are they just auto-expanding to eventually become single #define (like the second #define), or very specific/complicated reason here? This is my first time to see #define "multiple?" things in a single row. Thanks a lot!
Hi people I'm trying to do a school project and I've a situation wich is bothering me, imagine We've a program and that programs devided in multiple files "dotC1.c" and "dotC2.c" (for example) and they include our own header "header.h", and if We are using some libraries int both files it would... (2 Replies)
Hi All,
I am trying to merge all files in a directory that end in *.txt to a single file with the contents one after the other. This I can do using the cat function but how do I put the name of the file as a header for each one in the combined single file and seperate the contents from each... (2 Replies)
Friends,
I need help with the following in UNIX.
Merge all csv files in one folder considering only 1 header row and ignoring header of all other files.
FYI - All files are in same format and contains same headers.
Thank you (4 Replies)
Hi Guys,
Good morning! I have a file which looks something like this:
Command was launched from partition 0.
------------------------------------------------
Executing command in server server3
Thu Jan 12 11:10:39 EET 2012
------------------------------------------------... (3 Replies)
Hello,
I use UBUNTU 12.04.
I want to write a short program using awk to select some lines in a file based on a second file.
My first file has this format with about 400,000 lines and 47 fields:
SNP1 1 12.1
SNP2 1 13.2
SNP3 1 45.2
SNP4 1 23.4
My second file has this format:
SNP2
SNP3... (1 Reply)
Hi,
I have been out of the loop with my UNIX/Linux for several years and have been working mainframe. I was trying to create a short two line program to create a list of email addresses as a variable and then send the list a file. Here is what I did and I thought that is was right, but I am... (3 Replies)
I'm trying to lookup the definition of the ext4 superblock schedule in the kernel header files, but I can't seem to locate the files. I'm running the most recent Raspian Debian Wheezy OS with kernel version 3.18. Any help is greatly appreciated. Thank you!! (1 Reply)
Hi Team,
I'm looking for a command which removes files having 0 byte of having only header line (1 line).
My ETL process generates these files. Few files are not having header, in that case if no data from source, it will be 0 byte and few files are having header, in that case if no data from... (7 Replies)
Some of my c code compiles fine but others can't find header files.
Colored_Chars.c:4:10: fatal error: graphics.h: No such file or directory
Do I need to download them from some where?
I found this. Is this what I need to do? Under Using DSL
libraries - How do I use graphics.h in... (3 Replies)
I've been struggling with this one for quite a while and cannot seem to find a solution for this find/replace scenario. Perhaps I'm getting rusty.
I have a file that contains a number of metrics (exactly 3 fields per line) from a few appliances that are collected in parallel. To identify the... (3 Replies)
Discussion started by: verdepollo
3 Replies
LEARN ABOUT ULTRIX
filehdr
filehdr(5) File Formats Manual filehdr(5)Name
filehdr - file header for RISC object files
Syntax
#include < filehdr.h>
Description
Every RISC object file begins with a 20-byte header. The following C struct declaration is used:
struct filehdr
{
unsigned short f_magic; /* magic number */
unsigned short f_nscns; /* number of sections */
long f_timdat; /* time & date stamp */
long f_symptr; /* file pointer to symbolic header */
long f_nsyms; /* sizeof(symbolic header) */
unsigned short f_opthdr; /* sizeof(optional header) */
unsigned short f_flags; /* flags */
};
The byte offset into the file at which the symbolic header can be found is f_symptr. Its value can be used as the offset in to position an
I/O stream to the symbolic header. The ULTRIX system optional header is 56 bytes. The valid magic numbers are given below:
#define MIPSEBMAGIC 0x0160 /* objects for big-endian machines */
#define MIPSELMAGIC 0x0162 /* objects for little-endian machines */
#define MIPSEBUMAGIC 0x0180 /* ucode objects for big-endian machines */
#define MIPSELUMAGIC 0x0182 /* ucode objects for little-endian machines */
RISC object files can be loaded and examined on machines differing from the object's target byte sex. Therefore, for object file magic
numbers, the byte-swapped values have define constants associated with them:
#define SMIPSEBMAGIC 0x6001
#define SMIPSELMAGIC 0x6201
The value in f_timdat is obtained from the system call. Flag bits used in RISC objects are:
#define F_RELFLG 0000001 /* relocation entries stripped */
#define F_EXEC 0000002 /* file is executable */
#define F_LNNO 0000004 /* line numbers stripped */
#define F_LSYMS 0000010 /* local symbols stripped */
See Alsotime(2), fseek(3s), a.out(5)
RISC filehdr(5)