lost the $ prompt - am I spawning shells??


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting lost the $ prompt - am I spawning shells??
Prev   Next
# 1  
Old 05-02-2011
lost the $ prompt - am I spawning shells??

When trying to get the correct syntax to cron a script that creates a file with the date stamp as its output, sometimes I get these results:

- from the command line, I may encounter an error that leaves me without the usual $ prompt. Am I in a new shell? I try to exit it with 'exit' or :q! and cannot get my prompt back. I can exit my putty session and start a new one to get back to a $ prompt.

- from cron, I get nothing - no error and no output file

My concern is that I am spawning processes that keep running, or shells that never die. Is that a valid concern? Is there a way I can check whether I am doing this?

Thanks,
-dog
 
Login or Register to Ask a Question

Previous Thread | Next Thread

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Spawning a TTY shell

Hi there, I would like to understand the purpose of spawning a TTY shell? Does it mean that it will help to open up a new Windows on the current interactive shell such that when the session gets lost the other won't Any explanation will be helpful. (3 Replies)
Discussion started by: alvinoo
3 Replies

2. AIX

Multiple pconsole processes spawning indefinetly

Good night everyone, I've been trying to make AD authentication work with RBAC and I think I messed my test LPAR up. I've manually modified the /etc/security/user.roles file, adding a role to one of my AD users (who is not defined locally) and then runned setkst. It worked fine, but now I found... (3 Replies)
Discussion started by: Janpol
3 Replies

3. UNIX for Advanced & Expert Users

Crontab spawning multiple at processes

Hi - I need help. My user crontab is spawning multiple at processes (and multiple mencoder program starts, that exit, then restart, repeatedly), locking up my system. For example I have this entry in my crontab: $ sudo crontab -u victoria -e * * * * * ~/recordings/pvr1 * * * * *... (10 Replies)
Discussion started by: gstuart
10 Replies

4. Shell Programming and Scripting

Spawning multiple threads in Unix

Hi, I need to spawn mutilpe threads , each invoking a different set of shell scripts, in parallel. What would be the best way to do that. Any sample script would greatly help. I am a novice at Unix so any help is much appreciated. Thanks (5 Replies)
Discussion started by: neeto
5 Replies

5. Filesystems, Disks and Memory

Lost Data Lost Admin

First time so excuse my ignorance please. I may not be accurately describing the issue. I have inherited a small lab mostly SUN V120s. We lost power and are trying to recover. Nope no backups... The primary issue I have is 1 box is an Oracle Server. It has 2 36Gb harddrives. I am able to... (3 Replies)
Discussion started by: murphsr
3 Replies

6. UNIX for Advanced & Expert Users

spawning the same program

We have a program (reader) that reads audio files in a real-time continuous stream from a sender program. If the reader gets weird we want the sender to be able to send one command that will stop the current reader and start a new one that will be able to continue reading in the files. The sender... (9 Replies)
Discussion started by: laforge
9 Replies

7. Shell Programming and Scripting

Spawning a shell script

Hi there, I have a shell script which I need to run it from two different places on the same server, are there any specific rules I need to apply? What is the best practice to achieve this task. Regards (5 Replies)
Discussion started by: JimJim
5 Replies

8. Shell Programming and Scripting

Spawning new shells from the command line in OpenStep 4.2

Hi all, Im trying to figure out what the command would be to launch terminal windows from the command line in Open Step 4.2 . (looking for something similiar like /usr/bin/xterm or /usr/bin/dtterm etc) echo $TERM = vt100 echo $SHELL = /bin/csh Im combing over alot of OpenStep 4.2 and... (3 Replies)
Discussion started by: Rocketman8541
3 Replies

9. Solaris

spawning new shells using dtterm in Solaris 8

Hi all, First time poster here. Great forum. Im trying to spawn new shells and pass commands to the new shells in a solaris 8 environment utilizing dtterm and its option -e. I can successfully spawn a window utilizing the following code: /usr/dt/bin/dtterm -display <ip.address> & ... (4 Replies)
Discussion started by: Rocketman8541
4 Replies
Login or Register to Ask a Question
yum-cron(8)															       yum-cron(8)

NAME
yum-cron - an interface to convieniently call yum from cron SYNOPSIS
yum-cron [config-file] DESCRIPTION
yum-cron is an alternate interface to yum that is optimised to be convenient to call from cron. It provides methods to keep repository metadata up to date, and to check for, download, and apply updates. Rather than accepting many different command line arguments, the dif- ferent functions of yum-cron can be accessed through config files. config-file is used to optionally specify the path to the configuration file to use. If it is not given, the default configuration file will be used. It is useful to be able to specify different configuration files for different use cases. For example, one configuration file might be set to update the repository metadata, and a line could be added to the crontab to run yum-cron frequently using this file. Then, another configuration file might be set to install updates, and yum-cron could be run from cron using this file just once each day. FILES
/etc/yum/yum-cron.conf /etc/yum/yum-cron-hourly.conf SEE ALSO
yum (8) AUTHORS
See the Authors file included with this program. BUGS
There of course aren't any bugs, but if you find any, you should email the mailing list, yum@lists.baseurl.org, or consult bugzilla. Nick Jacek yum-cron(8)