01-15-2009
Quote:
Originally Posted by
Corona688
Could you show your code? We can't tell what's going wrong when we can't see what you're doing. Be sure to put it in code tags. like
i write this code to redirect stdout and stderr
dup2(fd2,STDOUT_FILENO);
dup2(fd1,STDERR_FILENO);//redirection of stdout and stderr in parent
close(fd2);close(fd1);
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
How can I redirect and append stdout and stderr to a file when using cron? Here is my crontab file:
*/5 * * * * /dir/php /dir/process_fns.php >>& /dir/dump.txt
Cron gives me an 'unexpected character found in line' when trying to add my crontab file.
Regards,
Zach Curtis
POPULUS (8 Replies)
Discussion started by: zcurtis
8 Replies
2. UNIX for Advanced & Expert Users
Hi all hope you can help as I am going MAD!!! :eek:
The below is in a shell script but the redirection in the sed line does not work and outputs to the screen and the $fname_2 does note get created ?????
Can any one help ??
#!/bin/ksh
cd /app/
for fname in `ls -1 X*`
do
sed 1d $fname... (3 Replies)
Discussion started by: mlucas
3 Replies
3. Shell Programming and Scripting
Hi friends
I am facing one problem while redirecting the out of the stderr and stdout to a file
let example my problem with a simple example
I have a file (say test.sh)in which i run 2 command in the background
ps -ef &
ls &
and now i am run this file and redirect the output to a file... (8 Replies)
Discussion started by: sushantnirwan
8 Replies
4. Programming
In my program, I am using library provided by other. In the library, the cout/cerr is redirected to a file (the file path is known).
After I call some methods in the library, I get one side-effect --> The cout/cerr in my own program is also directed to the file.
So how can I to redirect... (5 Replies)
Discussion started by: princelinux
5 Replies
5. Shell Programming and Scripting
Hi
I am not if this is possible: is it possible in bach (or another shell) to redirect GLOBALLY the stdout/stderr channels to a file.
So, if I have a script
script.sh
cmd1
cmd2
cmd3
I want all stdout/stderr goes to a file. I know I can do:
./script.sh 1>file 2>&1
OR
... (2 Replies)
Discussion started by: islegmar
2 Replies
6. Shell Programming and Scripting
Hi,
I would like to avoid re-directing line by line to a file.
What is the best way to re-direct STDOUT to a file in a subshell?
Thanks in advance.
Cheers
Vj (1 Reply)
Discussion started by: tnvee
1 Replies
7. Red Hat
EDIT: Nevermind, figured it out! Forgot to put backslashes in my perl script to not process literals!
Hi everyone. I am trying to have this command pass silently. (no output)
chsh -s /bin/sh news
Currently it outputs.
I've tried....
&> /dev/null
1> /dev/null
2>&1 /dev/null
1>&2... (1 Reply)
Discussion started by: austinharris43
1 Replies
8. UNIX for Dummies Questions & Answers
Hi All,
I am using centOS.
When I try to redirect STDOUT to a file, it ends up in getting some funny characters. For example ...
STDOUT of the command as follows.
$ ls
H3k27me3
H3k36me3
H3k4me1
H3k4me2
H3k4me3
H3k9ac
H4k20me1
$ ls >test
$ cat test
^ (1 Reply)
Discussion started by: Chulamakuri
1 Replies
9. Shell Programming and Scripting
Oracle Linux 5.6 64-bit (derivative of RHEL)
Dear Ann Landers,
This is about as bizarre as anything I've ever seen.
I have a little test script I've been working with. When I redirect stdout to a file, no file. Make a copy of the script to another name. Execute it and redirect stdout, and... (4 Replies)
Discussion started by: edstevens
4 Replies
10. Programming
I am looking for a way to redirect standard output to a file from a C-code;
so, any 'cout<<..' or 'printf(...)' will be written into a file.
I have a server source that I need to debug.
That program called by RPC (remote procedure call) and has no any session to print out anything.
I have... (3 Replies)
Discussion started by: alex_5161
3 Replies
LEARN ABOUT MOJAVE
curlopt_postredir
CURLOPT_POSTREDIR(3) curl_easy_setopt options CURLOPT_POSTREDIR(3)
NAME
CURLOPT_POSTREDIR - how to act on a HTTP POST redirect
SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_POSTREDIR,
long bitmask);
DESCRIPTION
Pass a bitmask to control how libcurl acts on redirects after POSTs that get a 301, 302 or 303 response back. A parameter with bit 0 set
(value CURL_REDIR_POST_301) tells the library to respect RFC 7231 (section 6.4.2 to 6.4.4) and not convert POST requests into GET requests
when following a 301 redirection. Setting bit 1 (value CURL_REDIR_POST_302) makes libcurl maintain the request method after a 302 redirect
whilst setting bit 2 (value CURL_REDIR_POST_303) makes libcurl maintain the request method after a 303 redirect. The value
CURL_REDIR_POST_ALL is a convenience define that sets all three bits.
The non-RFC behaviour is ubiquitous in web browsers, so the library does the conversion by default to maintain consistency. However, a
server may require a POST to remain a POST after such a redirection. This option is meaningful only when setting CURLOPT_FOLLOWLOCATION(3).
DEFAULT
0
PROTOCOLS
HTTP(S)
EXAMPLE
CURL *curl = curl_easy_init();
if(curl) {
curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");
/* a silly POST example */
curl_easy_setopt(curl, CURLOPT_POSTFIELDS, "data=true");
/* example.com is redirected, so we tell libcurl to send POST on 301, 302 and
303 HTTP response codes */
curl_easy_setopt(curl, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
curl_easy_perform(curl);
}
AVAILABILITY
Added in 7.17.1. This option was known as CURLOPT_POST301 up to 7.19.0 as it only supported the 301 then. CURL_REDIR_POST_303 was added in
7.26.0.
RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
SEE ALSO
CURLOPT_FOLLOWLOCATION(3), CURLOPT_POSTFIELDS(3),
libcurl 7.54.0 February 03, 2016 CURLOPT_POSTREDIR(3)