02-14-2006
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi,
I have a shell script. What should I do to allow only single instance of the script to be run by a user at a time. That is, Only one user can run that script at a given point of time.
Please help..
Its very important for my project
Thanks in advance (4 Replies)
Discussion started by: pathanjalireddy
4 Replies
2. Shell Programming and Scripting
Alright, I think I know what I am doing with sed(which probably means I don't). But I cant figure out how to replace just the first occurance of a string. I have tried sed, ed, and grep but can't seem to figure it out. If you have any suggestions I am open to anything! (3 Replies)
Discussion started by: IronHorse7
3 Replies
3. Shell Programming and Scripting
Hi there, if i have a simple getopts like below ...how can i make it so that if somebody enters more than one -g argument for example, it will error with a " you cannot enter more than one -g" or something like that.?
I want to only allow one instance of a -g or a -h etc ..
while getopts... (1 Reply)
Discussion started by: hcclnoodles
1 Replies
4. Shell Programming and Scripting
Guys please see below functions to return a status depending on user input. Both seem to work the same.
The second way has a : line which i can't understand or see in a ksh manual anywhere. Instead of doing the variable change if its empty on this line the first function simply does it on the... (7 Replies)
Discussion started by: lavascript
7 Replies
5. Shell Programming and Scripting
Hi All,
I have a input file like
1| abc
1| abcd
1| abcde
2| abc
2| abcd
3| abcde
I want the output like
1| abcde
2| abcde
Any help would be highly appreciated.
Thanks in advance. (9 Replies)
Discussion started by: lrkp
9 Replies
6. Shell Programming and Scripting
Hi I want to replace single quote with two single quotes in a perl string.
If the string is <It's Simpson's book> It should become <It''s Simpson''s book> (3 Replies)
Discussion started by: DushyantG
3 Replies
7. Shell Programming and Scripting
Hi,
I have a requirement with,
No~Dt~Notes
1~2011/08/1~"aaa
bbb
ccc
ddd
eee
fff
ggg
hhh"
Single column alone got splitted into multiple lines.
I require the output as
No~Dt~Notes
1~2011/08/1~"aaa<>bbb<>ccc<>ddd<>eee<>fff<>ggg<>hhh"
mean to say those new lines to be... (1 Reply)
Discussion started by: Bhuvaneswari
1 Replies
8. Shell Programming and Scripting
Hi, the title isn't very descriptive but it'll be easier to explain what I need if I write out the coordinates from which I need to extract certain information:
ATOM 2521 C MAM X 61 44.622 49.357 12.584 1.00 0.00 C
ATOM 2522 H MAM X 61 43.644 49.102 12.205 ... (10 Replies)
Discussion started by: crunchgargoyle
10 Replies
9. UNIX for Advanced & Expert Users
Hi,
I want to write one program in C in Unix OS which will check the running status of a process time to time. If the process is stopped somehow by any means, it will ensure that the process is restarted and only one copy of the process image should run in memory at any point of time for the user.... (2 Replies)
Discussion started by: sanzee007
2 Replies
10. Shell Programming and Scripting
Hi,
I have 2 csv/txt files with single columns. I am trying to merge them using paste, but its not working..
output3.csv:
flowerbomb
everlon-jewelry
sofft
steve-madden
dolce-gabbana-watchoutput2.csv:
http://www1.abc.com/cms/slp/2/Flowerbomb
http://www1.abc.com/cms/slp/2/Everlon-Jewelry... (5 Replies)
Discussion started by: ajayakunuri
5 Replies
LEARN ABOUT CENTOS
service
service(8) System Manager's Manual service(8)
NAME
service - run a System V init script
SYNOPSIS
service SCRIPT COMMAND [OPTIONS]
service --status-all
service --help | -h | --version
DESCRIPTION
service runs a System V init script in as predictable environment as possible, removing most environment variables and with current working
directory set to /.
The SCRIPT parameter specifies a System V init script, located in /etc/init.d/SCRIPT. The supported values of COMMAND depend on the
invoked script, service passes COMMAND and OPTIONS it to the init script unmodified. All scripts should support at least the start and
stop commands. As a special case, if COMMAND is --full-restart, the script is run twice, first with the stop command, then with the start
command.
service --status-all runs all init scripts, in alphabetical order, with the status command.
If the init script file does not exist, the script tries to use legacy actions. If there is no suitable legacy action found and COMMAND is
one of actions specified in LSB Core Specification, input is redirected to the systemctl. Otherwise the command fails with return code 2.
FILES
/etc/init.d
The directory containing System V init scripts.
ENVIRONMENT
LANG, TERM
The only environment variables passed to the init scripts.
SEE ALSO
chkconfig(8), ntsysv(8), systemd(1), systemctl(8), systemd.service(5)
Jan 2006 service(8)