I would like to allow only one instance of a script to run at any moment.
I've tried the following solution to count the instances but the result is always the number of running instances plus one and I can't find the problem
ps -ef | grep $0 | sed '/^$/ d' | sed '/grep/ d' | wc -l
Please... (2 Replies)
Hi
Hi! I'm currently using AIX 5.2 and would like to know where can i find to see that there's a restriction on the number of login times a user can have. Example, I want give a 2 login per user but some one to give 3 login and some one have to give unlit login time (without logging off the... (2 Replies)
Hi,
I'm using the ksh shell.
The scenario:
I have a couple of directories
/home/fd
/home/fd/prsd
home/fd/stg
now i have number of files in each of these directories.
some of the files are zipped using gzip so their extension is .gz
the content of the files is as follows
... (4 Replies)
Is there a way that I can limit number of commands that one user can run during period of time. For example Max 10 commands per senconds.:) (3 Replies)
Hello, I have some 150 Cron Jobs running under my UNIX account. I want to add some more jobs. Is there a limit to the number of cron jobs that can be run on an account?
Thank you.
Pramodini (8 Replies)
Hi frnds
i am newbie in linux and trying to write a simple script for adding users.the problem is i am running a while loop under function and loop is running for 3 time more than limit.Here is my Script and output pls help me out :
# CREATE N NO. OF USERS WITH PASSWORD IN SYSTEM
#... (4 Replies)
hi guys
how can i limit number of files in a disk or partition ?
or how can i make a limit to inode number for a disk or partition ?
ext3 or ext4 file system (1 Reply)
Linux top command prints more than 40 processes.
top -b -n 1 > Top_Output.txt
Is there a straight-forward option/way to limit only till the top 5 processes.
( Instead of using head, tail or other unix commands together) (1 Reply)
I have a topic line in markdown that spans more than 80 characters that i need to add a line break. Markdown is simply treating the line break as a brand new line instead of continuing as a topic line.
Eg:
# This is a very long
line
Markdown interprets it as
This is a very long
line (4 Replies)
cat filename| awk '{ $1=""; print $0}'
in my file there are few lines that has more than 3000 characters per line and as soon as I run the above command it cores, strings core reveals that the awk is failing because input string too long, limit. can i get some help from the experts to find... (8 Replies)
Discussion started by: knijjar
8 Replies
LEARN ABOUT NETBSD
script
SCRIPT(1) BSD General Commands Manual SCRIPT(1)NAME
script -- make typescript of terminal session
SYNOPSIS
script [-adfpqr] [-c command] [file]
DESCRIPTION
script makes a typescript of everything printed on your terminal. It is useful for students who need a hardcopy record of an interactive
session as proof of an assignment, as the typescript file can be printed out later with lpr(1).
If the argument file is given, script saves all dialogue in file. If no file name is given, the typescript is saved in the file typescript.
Option:
-a Append the output to file or typescript, retaining the prior contents.
-c command
Run the named command instead of the shell. Useful for capturing the output of a program that behaves differently when associated
with a tty.
-d When playing back a session with the -p flag, don't sleep between records when playing back a timestamped session.
-f Flush output after each write. This is useful for watching the script output in real time.
-p Play back a session recorded with the -r flag in real time.
-q Be quiet, and don't output started and ended lines.
-r Record a session with input, output, and timestamping.
The script ends when the forked shell exits (a control-D to exit the Bourne shell (sh(1)), and exit, logout or control-d (if ignoreeof is not
set) for the C-shell, csh(1)).
Certain interactive commands, such as vi(1), create garbage in the typescript file. script works best with commands that do not manipulate
the screen, the results are meant to emulate a hardcopy terminal.
ENVIRONMENT
The following environment variable is used by script:
SHELL If the variable SHELL exists, the shell forked by script will be that shell. If SHELL is not set, the Bourne shell is assumed. (Most
shells set this variable automatically).
SEE ALSO csh(1) (for the history mechanism).
HISTORY
The script command appeared in 3.0BSD.
BUGS
script places everything in the log file, including linefeeds and backspaces. This is not what the naive user expects.
BSD October 17, 2009 BSD