Why the nohup-ed background process always is "stopped" ?

Login or Register to Ask a Question and Join Our Community

Why the nohup-ed background process always is "stopped" ?

Tags

Login to Discuss or Reply to this Discussion in Our Community

Top Forums Shell Programming and Scripting Why the nohup-ed background process always is "stopped" ?

05-26-2009

Registered User

33, 0

Join Date: Mar 2007

Last Activity: 28 May 2009, 1:29 AM EDT

Posts: 33

Thanks Given: 0

Thanked 0 Times in 0 Posts

Why the nohup-ed background process always is "stopped" ?

I let a script A call script B.
I used

Code:

 nohup a.sh &>/tmp/log &

In script A it calls B directly, without any redirecting or nohup or background.

However A is always "Stopped", while B is running correctly. Anybody knows why?
thanks!

-----Post Update-----

BTW, if I don't use nohup and backgrounding, it's OK. i.e. if I use

Code:

a.sh

directly. Everything is OK. I am totally confused.

Last edited by meili100; 05-27-2009 at 01:41 AM..

meili100

View Public Profile for meili100

Find all posts by meili100

06-02-2009

Registered User

2,157, 51

Join Date: Feb 2007

Last Activity: 6 September 2017, 5:43 AM EDT

Location: Innsbruck, Austria

Posts: 2,157

Thanks Given: 12

Thanked 51 Times in 48 Posts

I'm confused too. Unless a.sh is reading from the tty or stdin, it shouldn't stop. Can you post the code up until the time script B is called?

otheus

View Public Profile for otheus

Find all posts by otheus

06-02-2009

Registered User

738, 7

Join Date: Oct 2007

Last Activity: 21 August 2013, 5:20 AM EDT

Location: Bangalore

Posts: 738

Thanks Given: 0

Thanked 7 Times in 7 Posts

Code:

nohup a.sh >/tmp/log &

devtakh

View Public Profile for devtakh

Find all posts by devtakh

06-02-2009

Registered User

2,157, 51

Join Date: Feb 2007

Last Activity: 6 September 2017, 5:43 AM EDT

Location: Innsbruck, Austria

Posts: 2,157

Thanks Given: 12

Thanked 51 Times in 48 Posts

The script a.sh calls itself?

otheus

View Public Profile for otheus

Find all posts by otheus

06-02-2009

Registered User

6,402, 678

Join Date: Mar 2008

Last Activity: 8 June 2016, 9:58 PM EDT

Posts: 6,402

Thanks Given: 288

Thanked 678 Times in 647 Posts

Quote:

nohup a.sh &>/tmp/log &

Maybe try.

Code:

nohup a.sh 2>&1>/tmp/log &

i.e. If your script is producing an error or asking a question you may need to capture all output. Pure guesswork until we see what is in the scripts.

methyl

View Public Profile for methyl

Find all posts by methyl

Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Bash script - Print an ascii file using specific font "Latin Modern Mono 12" "regular" "9"

Hello. System : opensuse leap 42.3 I have a bash script that build a text file. I would like the last command doing : print_cmd -o page-left=43 -o page-right=22 -o page-top=28 -o page-bottom=43 -o font=LatinModernMono12:regular:9 some_file.txt where : print_cmd ::= some printing...

2. UNIX for Dummies Questions & Answers

Zsh builtin "kill" stopped working

Hi all, I've been using zsh for a while, and was enjoying the builtin "kill" with tab completion. But since I installed "oh-my-zsh" the kill completion has stopped working. I have not edited my new ~/.zshrc file. My ~/.oh-my-zsh/lib/completions.zsh contains the following: zstyle...

3. Shell Programming and Scripting

[SOLVED] Using "$!" to get the PID of the Last Ran Background Process

Hello All, I was looking into creating a script that would be used only to start a Daemon and create a lock file... F.Y.I. It's for Nagios' NRPE Daemon Plugin... Anyway when I run the command to start the Daemon (below): /usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d And...

4. UNIX for Advanced & Expert Users

can "netif_queue_stopped" function check wether or not the net device queue is stopped?

Hi, all: In linux 3.0.4, can "netif_queue_stopped" function check wether or not the net device queue is stopped? How could I know wether a net device queue is stopped or not? li,kunlun

5. Shell Programming and Scripting

awk command to replace ";" with "|" and ""|" at diferent places in line of file

Hi, I have line in input file as below: 3G_CENTRAL;INDONESIA_(M)_TELKOMSEL;SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL My expected output for line in the file must be : "1-Radon1-cMOC_deg"|"LDIndex"|"3G_CENTRAL|INDONESIA_(M)_TELKOMSEL"|LAST|"SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL" Can someone...

6. UNIX for Advanced & Expert Users

Why the nohup-ed background process always is "stopped" ?

I let a script A call script B. I used nohup a.sh &>/tmp/log & In script A it calls B directly, without any redirecting or nohup or background. However A is always "Stopped", while B is running correctly. Anybody knows why? thanks! -----Post Update----- BTW, if I don't use nohup...

7. Red Hat

"service" , "process" and " daemon" ?

Friends , Anybody plz tell me what is the basic difference between "service" , "process" and " daemon" ? Waiting for kind reply .. ..

8. Shell Programming and Scripting

using mutiple "nohup" to execute multiple commands.

I need to run multiple commands on remote server using the nohup... I have tried 2 options 1) rsh <SERVER_NAME> -n "nohup perl $SCRIPTS_DIR/abc.pl ; $SCRIPTS_DIR/xyz.ksh & " & 2) rsh <SERVER_NAME> -n "nohup perl $SCRIPTS_DIR/abc.pl & nohup $SCRIPTS_DIR/xyz.ksh & " & I need to know if...

9. Shell Programming and Scripting

How to include RETURN KEY with Background process "&" in Shell Script

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...

10. UNIX for Dummies Questions & Answers

"nohup" and "&" commands

Why would anyone ever type in a command like this: nohup command & nohup lets you logout of your telnet session so why add "&" to run it in the background?

Login or Register to Ask a Question