Hi, I have two input files.
File1:
ID Name Place
1-234~name1~Newyork
1-34~name2~Boston
1-2345~name3~Hungary
File1 is a variable length file where each column is seperated by delimitter "~".
File2:
ID Country
1-34<<11 SPACES>>USA<<7 spaces>>
1-234<<10 SPACES>>UK<<8... (5 Replies)
Col1 Col2 Col3 Col4
12 Completed 08 0830
12 In Progress 09 0829
11 For F U 07 0828
Considering the file above, how could i replace the third column the most efficient way? The actual file size is almost 1G. I am... (10 Replies)
Hi, Iam new to unix. I have one input file .
Input file :
ID1~Name1~Place1
ID2~Name2~Place2
ID3~Name3~Place3
I need output such that only first column should change to fixed width column of 15 characters of length.
Output File:
ID1<<12 spaces>>Name1~Place1
ID2<<12... (5 Replies)
Hi,
How to output the duplicate record to another file. We say the record is duplicate based on a column whose position is from 2 and its length is 11 characters.
The file is a fixed width file.
ex of Record:
DTYU12333567opert tjhi kkklTRG9012
The data in bold is the key on which... (1 Reply)
Hi,
I have a fixed width text file without any header row. One of the columns contains a date in YYYYMMDD format.
If the original file contains 3 dates, I want my shell script to split the file into 3 small files with data for each date.
I am a newbie and need help doing this. (14 Replies)
I have a fixed with file with header & trailer length having the same length of the detail record file.
The details record length of this file is 24, for Header and Trailer the records will be padded with spaces to match the record length of the file
Currently I am adding 3 spaces in header... (14 Replies)
hi,
i have a fixed width file with multiple columns and need to print data using awk command.
i use: awk -F "|" '($5 == BH) {print $1,$2,$3}' <non_AIM target>.txt for a delimiter file.
but now i have a fixed width file like below:
7518 8269511BH 20141224951050N8262
11148 8269511BH... (5 Replies)
Hi All,
I am trying to select the rows in a fixed width file based on values in the columns.
I want to select only the rows if column position 3-4 has the value AB
I am using cut command to get the column values. Is it possible to check if cut -c3-4 = AB is true then select only that... (2 Replies)
Hi everyone..
I have a list of values in a file...
a,
b,
c,
1,
2,
3,
aaaa,
bbbbb,
I am interested in converting this column to a row..
"text",aaaa,
bbbb
a,1 (7 Replies)
Discussion started by: manihi
7 Replies
LEARN ABOUT MINIX
director
DIRECTORY(3) Library Functions Manual DIRECTORY(3)NAME
directory, opendir, readdir, rewinddir, closedir, telldir, seekdir - directory routines
SYNOPSIS
#include <sys/types.h>
#include <dirent.h>
DIR *opendir(const char *dirname)
struct dirent *readdir(DIR *dirp)
void rewinddir(DIR *dirp)
int closedir(DIR *dirp)
#define _MINIX 1
#include <sys/types.h>
#include <dirent.h>
long telldir(DIR *dirp)
int seekdir(DIR *dirp, long pos)
DESCRIPTION
These routines form a system independent interface to access directories.
Opendir() opens the directory dirname and returns a pointer to this open directory stream.
Readdir() reads one entry from the directory as a pointer to a structure containing the field d_name, a character array containing the
null-terminated name of the entry.
Rewinddir() allows the directory to be read again from the beginning.
Closedir() closes the directory and releases administrative data.
The Minix specific functions telldir() and seekdir() allow one to get the current position in the directory file and to return there later.
Seekdir() may only be called with a position returned by telldir() or 0 (rewind). These functions should not be used in portable programs.
SEE ALSO dir(5).
DIAGNOSTICS
Opendir() returns a null pointer if dirname can't be opened, or if it can't allocate enough memory for the DIR structure.
Readdir() returns null if there are no more directory entries or on error.
Closedir() and seekdir() returns 0 on success, -1 on error.
Telldir() returns -1 on error.
All of them set errno appropriately. Readdir() will only set errno on error, not on end-of-dir, so you should set errno to zero before-
hand, and check its value if readdir() returns null.
NOTES
The return value of readdir() needs to be copied before the next operation on the same directory if it is to be saved.
AUTHOR
Kees J. Bot (kjb@cs.vu.nl)
DIRECTORY(3)