10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I have the input file like this.
Input file: 12.txt
1) There are one or more than one <tr> tags in same line.
2) Some tr tags may have one <td> or more tna one <td> tags within it.
3) Few <td> tags having "<td> </td>". Few having more than one " " entry in it.
<tr> some td... (4 Replies)
Discussion started by: thomasraj87
4 Replies
2. Solaris
Hi
I have a root script which is setting up user and his dirs and so on. After I create user and set up all the necessary I have to manually set user password. I try all possible ways what google find me and nothing works for me. If maybe one of you have a solution for my problem it will be... (1 Reply)
Discussion started by: Jaffakeks
1 Replies
3. Shell Programming and Scripting
Dear Experts.
I need to add/modify the entries in the DNS server and this has to be achieved using shell script and below is the requirement, could you please let me know if a shell script can be written for this task?
1. Log in to primary DNS server
2. Check /etc/named.conf if zone is... (4 Replies)
Discussion started by: VKIRUPHAKARAN
4 Replies
4. Shell Programming and Scripting
Hi Ladies and Gents,
Explanation of my question with an example:
Let's consider the script: backup_every_hour.sh
#!/bin/bash
rsync -auv $dir $backup_dir >> backup_every_hour_script.log
Each time this script is called there will be a new entry at the end of the file... (1 Reply)
Discussion started by: freddie50
1 Replies
5. Programming
hi ,
I have 4 tables
1.table 1
2.table 2 ==> delete from here
3.table 3
4.table 4
table 2 & table 3 has pk_fk relationship
table 1 & table 4 ha spk_fk relationship
basically i wanted to do physical delete few rows from table 2 (Parent),
it should delete from... (0 Replies)
Discussion started by: balajikalai
0 Replies
6. Shell Programming and Scripting
Hi All,
I want to detect each new file coming / getting created in unix directory.
When every new file came to directory, i have to get its details like its size , date and time stamp and store it into another file.
Could any one please tell me , how i can achieve that?
Thanks. (13 Replies)
Discussion started by: james_1984
13 Replies
7. Shell Programming and Scripting
Can anyone provide me a shell script to edit a xml file and delete one entry.
To do manually i can edit(vi editor) the file and 'dd' will delete the file.But I wiluld to know if I can do with a script.
Thanks in advance
Tannu (6 Replies)
Discussion started by: tannu
6 Replies
8. Programming
Hi i try to use the function putpwent to write a simple
entry in "/etc/passwd" putpwnet returns 0 as it works but
notething writes to /etc/passwd. What have i missed?
My os
--------
root@nighter-laptop:/home/nighter/labb# uname -a
Linux nighter-laptop 2.6.22-14-generic #1 SMP Sun Oct 14... (5 Replies)
Discussion started by: nighter
5 Replies
9. SCO
I had a drive go bad. I have replaced the drive and have my system up. I have a 1-to-1 mirror raid. My mirrored boot drive brings the system up. I issued a reboot command. The system comes up gives me a login prompt and generates the error: failed write of utmpx entry:"i2".
What is i2? (1 Reply)
Discussion started by: jwideman
1 Replies
10. UNIX for Advanced & Expert Users
When shutting down a freshly installed version of 5.7 on a Compaq server I get two messages:
INIT: failed to write of utmpx entry: "s0"
and:
INIT: failed to write of utmpx entry: "fw"
then I can continue with the shutdown. When I bring the system back up it has not saved any of my... (2 Replies)
Discussion started by: DarkLord
2 Replies
FORK(2) System Calls Manual FORK(2)
NAME
fork - create a new process
SYNOPSIS
#include <sys/types.h>
#include <unistd.h>
pid_t fork(void)
DESCRIPTION
Fork causes creation of a new process. The new process (child process) is an exact copy of the calling process except for the following:
The child process has a unique process ID.
The child process has a different parent process ID (i.e., the process ID of the parent process).
The child process has its own copy of the parent's descriptors. These descriptors reference the same underlying objects, so that,
for instance, file pointers in file objects are shared between the child and the parent, so that an lseek(2) on a descriptor in the
child process can affect a subsequent read or write by the parent. This descriptor copying is also used by the shell to establish
standard input and output for newly created processes as well as to set up pipes.
The child starts with no pending signals and an inactive alarm timer.
RETURN VALUE
Upon successful completion, fork returns a value of 0 to the child process and returns the process ID of the child process to the parent
process. Otherwise, a value of -1 is returned to the parent process, no child process is created, and the global variable errno is set to
indicate the error.
ERRORS
Fork will fail and no child process will be created if one or more of the following are true:
[EAGAIN] The system-imposed limit on the total number of processes under execution would be exceeded. This limit is configuration-
dependent. (The kernel variable NR_PROCS in <minix/config.h> (Minix), or <minix/const.h> (Minix-vmd).)
[ENOMEM] There is insufficient (virtual) memory for the new process.
SEE ALSO
execve(2), wait(2).
3rd Berkeley Distribution May 22, 1986 FORK(2)
