Hello,
I'm trying to write a method which will return the extension of a file given the file's name, e.g. test.txt should return txt. I'm using C so am limited to char pointers and arrays. Here is the code as I have it:
char* getext(char *file)
{
char *extension;
int i, j;... (5 Replies)
Heeloo all,
A weird problem perhaps. May god save others from this problem.
I want to print each line from a variable.. the example below should make it clear.
smvar="Hello World1
Hello world 2
forgot there I guess"
for eachline in $smvar
echo $eachline
end
Whats for... (3 Replies)
Hello,
Need help substituting a particular word in a file having a single line but no newline character at the end.
I was trying to use sed but it doesn't work probably because there is no newline char at the end of the line.
$ cat hlq_detail
/outputs/alvan23/PDFs/bills
$ cat... (5 Replies)
Compiling xpp (The X Printing Panel) on SL6 (RHEL6 essentially):
xpp.cxx: In constructor ‘printFiles::printFiles(int, char**, int&)’:
xpp.cxx:200: error: invalid conversion from ‘const char*’ to ‘char*’
The same error with all c++ constructors - gcc 4.4.4.
If anyone can throw any light on... (8 Replies)
Greetings!
Can we automate the process of removing a newline char from selected rows in a fixed width file using a shell?
Input is like
abcd1234
xyzd1234
abcd
a1b2c3d4
abcd1234
xyzd1234
xx
abcd1234
Expected output -
abcd1234xyzd1234
abcda1b2c3d4abcd1234xyzd1234
xxabcd1234
... (2 Replies)
Greetings!
Can we automate the process of removing a newline char from selected rows in a fixed width file using a shell?
Input is like
abcd1234
xyzd1234
abcd
a1b2c3d4
abcd1234
xyzd1234
xx
abcd1234
Expected output -
abcd1234xyzd1234
abcda1b2c3d4abcd1234xyzd1234
xxabcd1234
... (3 Replies)
I have a file ABC.DAT with 2 columns avaialble
Data format :
XYZ!$#$!120
XXZ!$#$!1000
YYZ!$#$!104
While running the following code :
FILE_COUNTER=1;
RECORD_CN_FILE_COUNT=$((`wc -l ABC.DAT| cut -f1 -d' '`));
while
do
FILE_NAME=`cat ABC.DAT.DAT| head -$FILE_COUNTER |tail -1 | awk -F... (1 Reply)
Input eg:
Ouput Expected.
The #rd line had the unexpted new line, which need to be replaced with space.
I was planing to go with checking the length of each line using awk and if the length is less than the defeined limit, (12 in above case) will replace the newline with space.
... (5 Replies)
Discussion started by: deepakwins
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 '