RFIO_FERROR(3) Rfio Library Functions RFIO_FERROR(3)NAME
rfio_ferror, rfio_eof - checks file status
SYNOPSIS
#include <sys/types.h>
#include "rfio_api.h"
int rfio_ferror (FILE *fp);
int rfio_feof (FILE *fp);
DESCRIPTION
rfio_ferror tests the error indicator for the file whose descriptor fp is the one returned by rfio_fopen.
rfio_feof tests the end-of-file indicator for the file whose descriptor fp is the one returned by rfio_fopen.
RETURN VALUE
This routine returns >0 if set, 0 if not set, -1 if the operation failed and serrno is set appropriately.
ERRORS
EBADF fp is not a valid file descriptor.
SEBADVERSION Version ID mismatch.
SEE ALSO rfio_fopen(3)AUTHOR
LCG Grid Deployment Team
LCG $Date: 2005/03/31 13:13:02 $ RFIO_FERROR(3)
Check Out this Related Man Page
RFIO_FOPEN(3) Rfio Library Functions RFIO_FOPEN(3)NAME
rfio_fopen - opens a file
SYNOPSIS
#include <sys/types.h>
#include "rfio_api.h"
FILE *rfio_fopen (char *path, char *mode);
Under Linux, for large files:
#define _LARGEFILE64_SOURCE
#include <sys/types.h>
#include "rfio_api.h"
FILE *rfio_fopen64 (char *path, char *mode);
For large files, under other systems:
#include <sys/types.h>
#include "rfio_api.h"
FILE *rfio_fopen64 (char *path, char *mode);
DESCRIPTION
rfio_fopen opens the file whose name is the string pointed to by path , a character string containing the filename specification, and asso-
ciates a FILE stream with it.
mode is an access mode indicator. One of the characters "r" or "w".
rfio_fopen64 allows to open large files (see NOTES).
RETURN VALUE
This routine returns NULL if the operation failed or a non-NULL pointer to a FILE structure if the operation was successful. If it fails,
serrno variable is set appropriately.
ERRORS
ENOENT The named file/directory does not exist or is a null pathname.
EACCES Search permission is denied on a component of the path prefix.
EFAULT path is NULL
ENOTDIR A component of path prefix is not a directory.
EINVAL The mode provided to local open is invalid (see fopen(3))
EMFILE Too many open files
ECONNRESET Connection reset by peer
ETIMEDOUT Connection timed out
ECONNREFUSED Connection refused
EHOSTUNREACH No route to host
SENOSHOST Host unknown.
SENOSSERV Service unknown.
SEBADVERSION Version ID mismatch
SECOMERR Communication error.
SERTYEXHAUST Retry count exhausted
SENORCODE Host did not return error number
SEHOSTREFUSED
Host is not on local network and no mapping found
NOTES
On Irix, Tru64 and IA64 the 64 bit mode is the default one, rfio_fopen and rfio_fopen64 are identical.
SEE ALSO fopen(3), rfio_serror(3), rfio_perror(3), serrno(3)AUTHOR
LCG Grid Deployment Team
LCG $Date: 2005/03/31 13:13:02 $ RFIO_FOPEN(3)
I have a huge matrix file containing some 1.5 million rows and 6000 columns. The matrix looks something like this:
1 2 3
4 5 6
7 8 9
3 4 5
I want to add all the numbers in the columns of this matrix and display the result to my stdout. This means that the numbers in the first column are:
... (2 Replies)
Hi,
Just trying to get to grips with sed and awk for some reporting for work and I need some assistance:
I have a file that lists policy names on the first line and then on the second line whether the policy is active or not.
Policy Name: Policy1
Active: yes
Policy... (8 Replies)
version info :
vi availabe with RHEL 5.4
I have a text file with 10,000 lines. I want to copy lines from 5000th line to 7000th and redirect to a file. Any idea how I can do this?
Note:
The above scenario is just an example. In my actual requirement, the file has 14 million lines and I want... (9 Replies)
Hi everyone,
I know the following questions are noobish questions but I am asking them because I am confused about the basics of history behind UNIX and LINUX.
Ok onto business, my questions are-:
Was/Is UNIX ever an open source operating system ?
If UNIX was... (21 Replies)
Hello,
I couldn't find an actual introduction thread, so I decided to just put this here.
I go by d0wngrade online. I have been programming in multiple languages for about 15+ years. I started with standard web design languages like HTML and CSS, but I then advanced from design to development... (2 Replies)
Hi guys...
The first active code line in AudioScope.sh is set -u .
This causes a complete exit if a variable is used/found but has not been allocated at the start of the program.
However, apart from writing code to do the task, is there a switch to to check which variables have been... (17 Replies)
Hi.
In thread https://www.unix.com/shell-programming-and-scripting/267833-grouping-counting.html rovf and I had a mini-discussion on grep and awk.
Here is a demo script that compares the awk and grep approaches for this single problem:
#!/usr/bin/env bash
# @(#) s2 Demonstrate group... (1 Reply)
Hello,
I have to fish out some specific columns from a file based on the header value. I have the list of columns I need in a different file. I thought I could read in the list of headers I need,
# file with header names of required columns in required order
headers_file=$2
# read contents... (11 Replies)
For those interested in installing dash shell on OSX Lion to help test POSIX compliancy of shell scripts, it is quite easy. I did it like this:
If you don't have gcc on your system:
0. Download and install the Command Line Tools for Xcode package from Sign In - Apple *
1. Download the dash... (2 Replies)
Hello and thanks in advance for any help anyone can offer me
I'm trying to learn the find command and thought I was understanding it... Apparently I was wrong. I was doing compound searches and I started getting weird results with the -size test. I was trying to do a search on a 1G file owned by... (14 Replies)
I have data of an excel files as given below,
file1
org1_1 1 1 2.5 100
org1_2 1 2 5.5 98
org1_3 1 3 7.2 88
file2
org2_1 1 1 2.5 100
org2_2 1 2 5.5 56
org2_3 1 3 7.2 70
I have multiple excel files as above shown.
I have to copy column 1, column 4 and paste into a new excel file as... (26 Replies)
Dear All,
Taking a break from Vue.js coding for the site, SEO and YT videos; and hopefully addressing some well deserved criticism from some here that I have been too focused on the visual aspects of the forums versus the substance and the community....
While the "current generation... (9 Replies)
Hi all...
Well guys and gals, I jumped in at the deep end and found things that PERL cannot do by default.
Many tricky terminal escape codes are not catered for so I had to create workarounds.
One thing I searched for was this:
Passing perl variable to shell command
AND, @Neo this was... (15 Replies)