problem is that :after the work hav done it[program] (unfortunatly top utility do not show nor cat nor sort) stuck(freezes or smth) )just got it whats that!
it tty or who? do not show its bash-blablabla-$ ? why? and how to make to show this string?
Last edited by jim mcnamara; 04-13-2009 at 01:26 PM..
Reason: added code tags
Hi,
I am trying to write a script which will loop until a certain action has been performed. I have two files i would like to compares.
For example:
file1 has a list of user ids (about 900) from the company's e-mail server.
file2 has a list of user ids (about 50 or so) from... (7 Replies)
We are facing a problem with PIPE (|) as a delimiter in one of our FTP flat files.
We are constructing a Flat file in IBM-AIX and this contains various strings delimted by PIPE Symbol and then FTPing this to a Mainframe System
The Mainframe program simply recieves this and FTPs the same... (1 Reply)
hi friends,
i m tryin to load data from one set of table to other i have sql procedure al ready for it..!
i m going to load the procedure only if data in one of my table for example
table "landing " have 10 records each attribute of this table is
file_name status date ... (2 Replies)
Hello All,
I am a newbie in Shell script programming, and maybe you can help me with my query.
I need to write a shell script (mntServer.ksh) that will start a background process and also to be able to run another script.
The mntServer.ksh script contains:
#!/bin/ksh... (1 Reply)
Hello,
I've tried running several commands but am not getting the results I expect. Just to give you some background:
1) I'm running windows vista
2) I'm using Putty and have enabled X11 forwarding
3) I have also installed xming
4) I am using a free unix shell acount from devio.us
5) The... (5 Replies)
Hi all.
I have a .txt file that I need to sort it
My file is like:
1- 88 chain0 MASTER (FF-TE) FFFF 1962510 /TCK T FD2TQHVTT1 /jtagc/jtag_instreg/updateinstr_reg_1 dff1 (TI,SO)
2- ... (10 Replies)
Basically I want to shorten URLs on my html pasting site (pasteht.ml), by using "/~a1Pha" instead of "/paste/a1Pha". The ID is 5 numbers and letters, both cases.
For example:
/~idnum serves /paste/idnum.htm
/=idnum serves /paste/idnum.htm
/paste/idnum redirects to /~idnum (to update any old... (0 Replies)
Friends,
Need someone's help in helping me with the below requirement for a script:
> For a list of servers(over 100+), I need to login into each of them(cannot configure password-less ssh) & grab few configuration details <
I know, this is possible through expect programming in a simple... (2 Replies)
Friends,
Need someone's help in helping me with the below requirement for a script:
> For a list of servers(over 100+), I need to login into each of them(cannot configure password-less ssh) & grab few configuration details <
I know, this is possible through expect programming in a simple... (14 Replies)
Discussion started by: thisissouvik
14 Replies
LEARN ABOUT REDHAT
dup2
DUP(2) Linux Programmer's Manual DUP(2)NAME
dup, dup2 - duplicate a file descriptor
SYNOPSIS
#include <unistd.h>
int dup(int oldfd);
int dup2(int oldfd, int newfd);
DESCRIPTION
dup and dup2 create a copy of the file descriptor oldfd.
After successful return of dup or dup2, the old and new descriptors may be used interchangeably. They share locks, file position pointers
and flags; for example, if the file position is modified by using lseek on one of the descriptors, the position is also changed for the
other.
The two descriptors do not share the close-on-exec flag, however.
dup uses the lowest-numbered unused descriptor for the new descriptor.
dup2 makes newfd be the copy of oldfd, closing newfd first if necessary.
RETURN VALUE
dup and dup2 return the new descriptor, or -1 if an error occurred (in which case, errno is set appropriately).
ERRORS
EBADF oldfd isn't an open file descriptor, or newfd is out of the allowed range for file descriptors.
EMFILE The process already has the maximum number of file descriptors open and tried to open a new one.
WARNING
The error returned by dup2 is different to that returned by fcntl(..., F_DUPFD, ...) when newfd is out of range. On some systems dup2 also
sometimes returns EINVAL like F_DUPFD.
CONFORMING TO
SVr4, SVID, POSIX, X/OPEN, BSD 4.3. SVr4 documents additional EINTR and ENOLINK error conditions. POSIX.1 adds EINTR.
SEE ALSO fcntl(2), open(2), close(2)Linux 1.1.46 1994-08-21 DUP(2)
04-13-2009
