Just in case, be aware that should a blank line occurr in the data, the initial value of i will be greater than NF and the highlighted expression will never be true, an infinite loop (or at least a loop that runs until a field size limit is triggered by $i). Using < should fix it.
Hi,
I have an urgent task here. I am required to sort a flat file based on multiple columns which are based on the character position in that line. I am restricted to use the character position instead of the space and sort +1 +2 etc to do the sorting.
I understand that there is a previous... (8 Replies)
I need to find the line count of multiple strings in a particular file. The strings are as follows:
bmgcc
bmgccftp
bsmsftp
bulkftp
cctuneftp
crbtftp
crmpos
cso
gujhr
I am doing manual grep for each of the string to find the line count. The command i am using right now is:
grep mark... (3 Replies)
Hello,
I would like to find an efficient way to compare a pair of strings that differ at one position, and return the difference and position.
For example:
String1 123456789
String2 123454789
returning something - position 6, 6/4
Thanks in advance,
Mike (5 Replies)
Hi,
I need to search for some strings in specific positions in a file.
If the strings: "foo1", "foo2" or "foo3" is on position 266 or position 288 in a file i want the whole line printed.
Any idea how to do it? (5 Replies)
How to extract multiple data based on character position. I need to fetch from 7-9 and 22-26 and there is no delimiter for 22-26 since it is part of the column. The file may have more than 1000 character long.I managed to pull any one but not both
for example
test data
12345 zxc vbnmlk... (1 Reply)
I want to search files (basically .cc files) in /xx folder and subfolders.
Those files (*.cc files) must contain #include "header.h" AND x() function.
I am writing it another way to make it clear,
I wanna list of *.cc files that have 'header.h' & 'x()'. They must have two strings, header.h... (2 Replies)
Hi,
i want find the character '-' in a file from position 284-298, if it occurs i need to replace it with 'O ' for the position in the file. How to do that using SED command.
thanks in advance,
Sara (9 Replies)
Hi Guys!
Could anyone help me with?..
I have a line which says
BCVGF%6$#900 .....How can we know which position is for % or say $ by command or script?There is any way to get a prompt by any script?
Thanks a lot (6 Replies)
Hello,
I have spent considerable amount of time breaking my head on this and reached out here. here is the back ground.
OS - Solaris 10
There are two strings '<Orin>sop' and '<Dup>two' which I wanted to look for in a file without the quotes on different lines and ONLY if both strings are... (5 Replies)
Discussion started by: keithTait309875
5 Replies
LEARN ABOUT NETBSD
fgetln
FGETLN(3) BSD Library Functions Manual FGETLN(3)NAME
fgetln -- get a line from a stream
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <stdio.h>
char *
fgetln(FILE * restrict stream, size_t * restrict len);
DESCRIPTION
The fgetln() function returns a pointer to the next line from the stream referenced by stream. This line is not a C string as it does not
end with a terminating NUL character. The length of the line, including the final newline, is stored in the memory location to which len
points. (Note, however, that if the line is the last in a file that does not end in a newline, the returned text will not contain a new-
line.)
RETURN VALUES
Upon successful completion a pointer is returned; this pointer becomes invalid after the next I/O operation on stream (whether successful or
not) or as soon as the stream is closed. Otherwise, NULL is returned. The fgetln() function does not distinguish between end-of-file and
error; the routines feof(3) and ferror(3) must be used to determine which occurred. If an error occurs, the global variable errno is set to
indicate the error. The end-of-file condition is remembered, even on a terminal, and all subsequent attempts to read will return NULL until
the condition is cleared with clearerr(3).
The text to which the returned pointer points may be modified, provided that no changes are made beyond the returned size. These changes are
lost as soon as the pointer becomes invalid.
ERRORS
[EBADF] The argument stream is not a stream open for reading.
The fgetln() function may also fail and set errno for any of the errors specified for the routines fflush(3), malloc(3), read(2), stat(2), or
realloc(3).
SEE ALSO ferror(3), fgets(3), fopen(3), putc(3)HISTORY
The fgetln() function first appeared in 4.4BSD.
CAVEATS
Since the returned buffer is not a C string (it is not null terminated), a common practice is to replace the newline character with '