I need a better way to read the first character of each line in a file and check if it equals the special character ¤. This character tells me where there is a break in the reports. The file has over 500,000 lines. Currently, this is my code -
if ]
I am using Korn Shell as a scripting... (7 Replies)
Can someone help me to write a script / command to read in a file, character by character, replace any unknown ASCII characters with space. then write out the file to a new filename/
Thanks! (1 Reply)
Hello All,
We are getting files from sftp server through file transmission protocol & after transmission we are removing all the control M
(^M) characters from them.we are expecting various kind of special characters in the files.
we are tried removing '^M' characters through 'dos2unix' command... (2 Replies)
Hi,
How read character by character from a file .
and i need replace '.' with null if it comes as a 5 character
i am beginner ...please help me (1 Reply)
hello all
i request you to give the solution for the following problem..
I want read the text file.and print the contents character by character..like if the text file contains google means..i want to print
g
go
goo
goog
googl
google
like this Using unix Shell scripting...
without using... (1 Reply)
Hello,
The last character is a comma ,
I have tried the following:
sed -e 's/\,$//' filename-to-read
however - there are still commas at the end of each line...:confused: (5 Replies)
Hi,
Maybe this iscorrect forum for my question...
I should read one character at a fixed position from each line of the file. So how ??? should be substituted in the code below:
while read line ; do
single_char=`???`
echo "$single_char"
done < $input_file
OK...I did get an... (0 Replies)
performing this code to read from file and print each character in separate line
works well with ASCII encoded text
void
preprocess_file (FILE *fp)
{
int cc;
for (;;)
{ cc = getc (fp);
if (cc == EOF)
break;
printf ("%c\n", cc);
}
}
int
main(int... (1 Reply)
Discussion started by: khaled79
1 Replies
LEARN ABOUT MOJAVE
pcap_setnonblock
PCAP_SETNONBLOCK(3PCAP)PCAP_SETNONBLOCK(3PCAP)NAME
pcap_setnonblock, pcap_getnonblock - set or get the state of non-blocking mode on a capture device
SYNOPSIS
#include <pcap/pcap.h>
char errbuf[PCAP_ERRBUF_SIZE];
int pcap_setnonblock(pcap_t *p, int nonblock, char *errbuf);
int pcap_getnonblock(pcap_t *p, char *errbuf);
DESCRIPTION
pcap_setnonblock() puts a capture handle into ``non-blocking'' mode, or takes it out of ``non-blocking'' mode, depending on whether the
nonblock argument is non-zero or zero. It has no effect on ``savefiles''. If there is an error, -1 is returned and errbuf is filled in
with an appropriate error message; otherwise, 0 is returned. In ``non-blocking'' mode, an attempt to read from the capture descriptor with
pcap_dispatch() will, if no packets are currently available to be read, return 0 immediately rather than blocking waiting for packets to
arrive. pcap_loop() and pcap_next() will not work in ``non-blocking'' mode.
When first activated with pcap_activate() or opened with pcap_open_live() , a capture handle is not in ``non-blocking mode''; a call to
pcap_setnonblock() is required in order to put it into ``non-blocking'' mode.
RETURN VALUE
pcap_getnonblock() returns the current ``non-blocking'' state of the capture descriptor; it always returns 0 on ``savefiles''. If there is
an error, -1 is returned and errbuf is filled in with an appropriate error message.
errbuf is assumed to be able to hold at least PCAP_ERRBUF_SIZE chars.
SEE ALSO pcap(3PCAP), pcap_loop(3PCAP), pcap_next_ex(3PCAP), pcap_geterr(3PCAP)
18 October 2014 PCAP_SETNONBLOCK(3PCAP)