3. The attempts at a solution (include all code and scripts):
This is my program,what I want is do this program to check how many bytes,lines and words inside any of the file.
When I type wc test.cpp it will pop out
6 111 12608 test
But when I type wc test.cpp | ./test -l
it give me segmentation fault(core dumped)
Anyone can help me with this?
Can someone help me debug a c program I am running? It gives me segmentation fault.
I want to turn on debugging. Can some one give the command to turn it on?
Below is the error I get:
Segmentation Fault (core dumped) (3 Replies)
Please help, I have tried to run this program countless times and still nothing. Please tell me what I'm doing wrong.
$ cat>test
count=1
while
do
echo "5"
read number
echo $5
let count=count+ 1
done
exit 0
^C$ ksh test
$ ^C
$ ksh test
$
$ nothing happend (6 Replies)
Im new and wanted to know if im in the unix terminal and lets say i want to run microsoft word for example. i go in and go into the HD and then keep going and i type ls and see that microsoft word.app is there. how do i run it from that? (4 Replies)
Hi,
I have a program in /opt/local/bin, my path in my .profile is
export PATH=/opt/local/bin:/opt/local/sbin:$PATH
however when i type the program name it cannot find it, however i know the program is in /opt/local/bin?
Thanks (2 Replies)
I scheduled a cron job to run @ 1:00 as follows ,
00 01 * * * /app/cbf/CLIF/version-1.0.0.0/scripts/archival.sh
Please find the archival.sh script.
But cron is throwing a mail stating sqlplus command not found
So can anybody suggest what might be the problem ??? (13 Replies)
Which log file lists the activity of startup scripts, particularly loginhooks? I am trying hard to find it and I cannot. How can I even tell if my script is running without errors if there isnt a log? Very frusturating! (1 Reply)
Hey, im editing the passwd file so that when the user ben logs in it runs my assign program.
I changed the last column from
to
Then when i log in i get...
There is no problem with the program because it runs fine when i open it normally.
Any help much appreciated. (8 Replies)
I have a bash script that launches another problem. I need to run that program under a certain user account. The script itself is run using 'sudo <scriptname>'.
#!/bin/bash
myprogram=...
exec "$myprogram"
How would this be done? (1 Reply)
have been trying for a few weeks not to get this program running. I am newer to programming and it has definitely been a challenge. I think my problem arises with my if statement. I can get it to append the name to the new file, but it simply appends the whole sequence to the file rather than... (3 Replies)
I have a make file for C program, which always gives the error
ld: 0711-738 ERROR: Input file ../src/file_name.o
XCOFF32 object files are not allowed in 64 mode
Does anybody know the problem?
Thanks for contribution (2 Replies)
Discussion started by: digioleg54
2 Replies
LEARN ABOUT DEBIAN
strtok_r
STRTOK(3) Linux Programmer's Manual STRTOK(3)NAME
strtok, strtok_r - extract tokens from strings
SYNOPSIS
#include <string.h>
char *strtok(char *str, const char *delim);
char *strtok_r(char *str, const char *delim, char **saveptr);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
strtok_r(): _SVID_SOURCE || _BSD_SOURCE || _POSIX_C_SOURCE >= 1 || _XOPEN_SOURCE || _POSIX_SOURCE
DESCRIPTION
The strtok() function parses a string into a sequence of tokens. On the first call to strtok() the string to be parsed should be specified
in str. In each subsequent call that should parse the same string, str should be NULL.
The delim argument specifies a set of bytes that delimit the tokens in the parsed string. The caller may specify different strings in
delim in successive calls that parse the same string.
Each call to strtok() returns a pointer to a null-terminated string containing the next token. This string does not include the delimiting
byte. If no more tokens are found, strtok() returns NULL.
A sequence of two or more contiguous delimiter bytes in the parsed string is considered to be a single delimiter. Delimiter bytes at the
start or end of the string are ignored. Put another way: the tokens returned by strtok() are always nonempty strings.
The strtok_r() function is a reentrant version strtok(). The saveptr argument is a pointer to a char * variable that is used internally by
strtok_r() in order to maintain context between successive calls that parse the same string.
On the first call to strtok_r(), str should point to the string to be parsed, and the value of saveptr is ignored. In subsequent calls,
str should be NULL, and saveptr should be unchanged since the previous call.
Different strings may be parsed concurrently using sequences of calls to strtok_r() that specify different saveptr arguments.
RETURN VALUE
The strtok() and strtok_r() functions return a pointer to the next token, or NULL if there are no more tokens.
CONFORMING TO
strtok()
SVr4, POSIX.1-2001, 4.3BSD, C89, C99.
strtok_r()
POSIX.1-2001.
BUGS
Be cautious when using these functions. If you do use them, note that:
* These functions modify their first argument.
* These functions cannot be used on constant strings.
* The identity of the delimiting byte is lost.
* The strtok() function uses a static buffer while parsing, so it's not thread safe. Use strtok_r() if this matters to you.
EXAMPLE
The program below uses nested loops that employ strtok_r() to break a string into a two-level hierarchy of tokens. The first command-line
argument specifies the string to be parsed. The second argument specifies the delimiter byte(s) to be used to separate that string into
"major" tokens. The third argument specifies the delimiter byte(s) to be used to separate the "major" tokens into subtokens.
An example of the output produced by this program is the following:
$ ./a.out 'a/bbb///cc;xxx:yyy:' ':;' '/'
1: a/bbb///cc
--> a
--> bbb
--> cc
2: xxx
--> xxx
3: yyy
--> yyy
Program source
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int
main(int argc, char *argv[])
{
char *str1, *str2, *token, *subtoken;
char *saveptr1, *saveptr2;
int j;
if (argc != 4) {
fprintf(stderr, "Usage: %s string delim subdelim
",
argv[0]);
exit(EXIT_FAILURE);
}
for (j = 1, str1 = argv[1]; ; j++, str1 = NULL) {
token = strtok_r(str1, argv[2], &saveptr1);
if (token == NULL)
break;
printf("%d: %s
", j, token);
for (str2 = token; ; str2 = NULL) {
subtoken = strtok_r(str2, argv[3], &saveptr2);
if (subtoken == NULL)
break;
printf(" --> %s
", subtoken);
}
}
exit(EXIT_SUCCESS);
}
Another example program using strtok() can be found in getaddrinfo_a(3).
SEE ALSO index(3), memchr(3), rindex(3), strchr(3), string(3), strpbrk(3), strsep(3), strspn(3), strstr(3), wcstok(3)COLOPHON
This page is part of release 3.44 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
GNU 2012-05-10 STRTOK(3)