I need to write a script that can find a bad record (for example: there is date field colom but value provided in the file for this field is N/A) then script shoud searches this pattern and then insert the whole record into the bad file.
Example:
File1
Name designation dateOfJoining... (1 Reply)
I need to write a script that can find a bad record (for example: there is date field colom but value provided in the file for this field is N/A) then script shoud searches this pattern and then insert the whole record into the bad file.
Example:
File1
Name designation dateOfJoining... (2 Replies)
I am trying to write binary data to a file. My program below:
#include <stdlib.h>
#include <stdio.h>
struct tinner {
int j;
int k;
};
struct touter {
int i;
struct tinner *inner;
};
int main() {
struct touter data;
data.i = 10;
struct tinner... (4 Replies)
hi ,
i m having a html file and this file looks like this
<ssl>
<name>PIA</name>
<enabled>true</enabled>
<listen-port>39370</listen-port>
</ssl>
<log>
<name>PIA</name>
</log>
<execute-queue>
<name>weblogic.kernel.Default</name>
... (7 Replies)
hi
I am doing a task that is i have to search for multiple pattern from a file's 9 th column and then redirect it to a new file
awk -F, 'BEGIN {OSF=","} { if ($9 == "OTF") print $0}' test1.tsv > test.tsv
and the patterns are OST. ODI,MIN LIKE OTF
Bit not getting the desired output... (11 Replies)
Can someone tell me how to do this?
Just a thought that entered my mind when learning about structs.
First thought was:
struct one
{
struct two;
}
struct two
{
three;
}
one->two->three
would this be how you would access "three"? (1 Reply)
Dear all,
I'm trying to manipulate a data file and putting a certain lines into one paragraph.
What am I actually want to do is that search some lines in a data file. These lines begin with "1\1\GINC-" and end with "\\@" or the following two empty lines as shown in blue.
A part of the text... (11 Replies)
Hi guys.
I have a header file including a structure like this:
typedef struct
{
int index = -1;
stack_node *head;
} stack;
But when compiling with cc it shows error at the assignment line (int index = -1):
error: expected ‘:', ‘,', ‘;', ‘}' or ‘__attribute__' before ‘=' token... (1 Reply)
Hi,
I have received an application that stores some properties in a file. The existing struct looks like this:
struct TData
{
UINT uSizeIncludingStrings;
// copy of Telnet data struct
UINT uSize;
// basic properties:
TCHAR szHost; //defined in Sshconfig
UINT iPortNr;
TCHAR... (2 Replies)
I created python code that produce output in the form of:
moses-red-sea=1.00.03
genesis-snake=2.03
deliverance=5.0.010
I need to take this output and create a "C" header file and have it look like this:
struct {
char *name;
char *fixed_version;
} filename_versions... (7 Replies)
Discussion started by: metallica1973
7 Replies
LEARN ABOUT DEBIAN
io_tryread
io_tryread(3) Library Functions Manual io_tryread(3)NAME
io_tryread - read from a descriptor without blocking
SYNTAX
#include <io.h>
int io_tryread(int64 fd,char* buf,int64 len);
DESCRIPTION
io_tryread tries to read len bytes of data from descriptor fd into buf[0], buf[1], ..., buf[len-1]. (The effects are undefined if len is 0
or smaller.) There are several possible results:
o o_tryread returns an integer between 1 and len: This number of bytes was available for immediate reading; the bytes were read into the
beginning of buf. Note that this number can be, and often is, smaller than len; you must not assume that io_tryread always succeeds in
reading exactly len bytes.
o io_tryread returns 0: No bytes were read, because the descriptor is at end of file. For example, this descriptor has reached the end of
a disk file, or is reading an empty pipe that has been closed by all writers.
o io_tryread returns -1, setting errno to EAGAIN: No bytes were read, because the descriptor is not ready. For example, the descriptor is
reading an empty pipe that could still be written to.
o io_tryread returns -3, setting errno to something other than EAGAIN: No bytes were read, because the read attempt encountered a persis-
tent error, such as a serious disk failure (EIO), an unreachable network (ENETUNREACH), or an invalid descriptor number (EBADF).
io_tryread does not pause waiting for a descriptor that is not ready. If you want to pause, use io_waitread or io_wait.
You can make io_tryread faster and more efficient by making the socket non-blocking with io_nonblock().
SEE ALSO io_nonblock(3), io_waitread(3), io_tryreadtimeout(3)io_tryread(3)