:confused: Hi
i am trying to make a script through which i can get the total number of User and their PID after that kill all Users except the one by which i am currently logged in. (i m using SCO UNIX 5.06)
# id of current usre < total number of current user
USR=`who -u |wc -l`
# id of... (2 Replies)
I am trying to write a Shell script wherein the shell needs to read a list of PID in the File $stat/bin/Process and compare it to the PID of the processes running on a server.
Also the script should return KO(not OK) with corresponding label :-
a) When an environmental variable not... (2 Replies)
Hi,
In the following part of a script, I am grepping the list of all
running PIDs in the File as in line 3 :-
$pid_count=`grep -c "^${pid_process}$" $CRI_PUSH_BIN_HOME/bin/
PushProcessId`
If I cannot grep this way, then how can I do so.
1 pid_process=`ps -ef -o pid,args |... (1 Reply)
So I have a lot of Java applications on my servers all having their own folder from the applications subdirectory. Now, I need to do the following.
Search all the applications subdirectories for message.jar.
If the message.jar file exists, I need to search the application directory for... (1 Reply)
i have no idea abount shell script but i need need shell script to get last 10 char from a file name and write in to a new file.
consider u hav 5 files in a particular dir i script should get last 10 char of each file n write the 10 char in separate files (2 Replies)
Hi-
I am hoping someone can give me some pointers to get me started. I have a file which contains some dn's .e.g file 1
cn=bob,cn=user,dc=com
cn=kev,cn=user,dc=com
cn=john,cn=user,dc=com
I have a second file e.g. file.template which looks something like :-
dn: <dn>
objectclass:... (5 Replies)
Hello Experts,
I have been trying to work on to call a file in scripts.
@ECHO OFF
call %MY_HOME%\bin\setvars.bat
call %MY_HOME%\db\bin\start_db.bat.
This is a batch file and i want to write same functionality in shell script. How should I achieve it? How should I set variables in a... (1 Reply)
Hello,
How can I run this script every 1 hour and save its result to result.txt
ifconfig | grep 'inet addr:'| grep -v '127.0.0.1' | cut -d: -f2 | awk '{ print $1}'
Regards
Shaan (5 Replies)
I have file which contains a huge amount of data. I need to search the pattern Message id. When that pattern is matched I need to get abcdeff0-1g6g-91g3-1z2z-2mm605m90000 to another file.
Kindly provide your input.
File is like below
Jan 11 04:05:10 linux100 |NOTICE... (2 Replies)
Hi Everyone,
I want your help to write a script which will take text file as input and on the basis of delimiter ":"script will create excel sheet.
Example input:
IpAdress:InstanceName:Port:ServerName
10.255.255.1:abc:2232:xyz_abc
Output should be an excel sheet like below:
Column... (8 Replies)
Discussion started by: akabhinav18
8 Replies
LEARN ABOUT BSD
fork
FORK(2) System Calls Manual FORK(2)NAME
fork - create a new process
SYNOPSIS
pid = fork()
int pid;
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 processes resource utilizations are set to 0; see setrlimit(2).
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.
[EAGAIN] The system-imposed limit MAXUPRC (<sys/param.h>) on the total number of processes under execution by a single user would be
exceeded.
[ENOMEM] There is insufficient swap space for the new process.
SEE ALSO execve(2), wait(2)3rd Berkeley Distribution May 22, 1986 FORK(2)