Home PC Games Linux Windows Database Network Programming Server Mobile  
           
  Home \ Linux \ jobs command example     - MySQL Installation Troubleshooting (Database)

- RHEL6.5 replace local YUM source (Linux)

- ORA-04091 and Compound Trigger (Oracle 11g) (Database)

- Linux 0.12 kernel and modern kernels difference in memory management (Linux)

- Linux awk text analysis tool (Linux)

- MariaDB phpMyAdmin installation and configuration issues to resolve under CentOS7 (Database)

- Python when automated operation and maintenance often used method (Programming)

- Quick paging ROW_NUMBER conducted (Database)

- MySQL Data Types (Database)

- Getting Started with Linux system to learn: how to install USB webcams come in raspberry (Linux)

- Ubuntu users how to install the latest Nvidia graphics drivers (Linux)

- Android Service service applications and the phone SMS Listener Listener (Programming)

- Proxmox VE implement KVM OpenVZ virtualization cloud computing (Server)

- Oracle table Access Control (Database)

- Make command Detailed Tutorial (Programming)

- Linux set the maximum number of open files nofile and nr_open, file-max Description (Linux)

- Linux Getting Started tutorial: How to backup Linux systems (Linux)

- About Samba certification process and permissions (Linux)

- Examples of Python any parameters (Programming)

- Android using SVG vector graphics to create cool animation effects (Programming)

 
         
  jobs command example
     
  Add Date : 2018-11-21      
         
         
         
  I am a new Linux / Unix users. How can I use BASH in Linux or Unix-like systems / KSH / TCSH or POSIX-based shell to see the current jobs (job)? How to display the status of the current job on Unix / Linux? (LCTT Annotation: job, often referred to as "task")

Job control is the ability to stop / pause process (command) is executed in accordance with your request to continue / resume their execution. This is done by your operating system and such as bash / ksh, or POSIX shell and other shell to execute.

Jobs currently executing shell will be stored in a table, you can use the jobs command to display.

use

It displays the status of the job in the current shell session.

grammar

The basic syntax is as follows:

jobs
or

jobs jobID
or

jobs [options] jobID
 

Some job to start demonstration

Before you start using the jobs command, you need to first start multiple jobs on the system. Execute the following command to start the job:

### Start xeyes, calculator, text editor and gedit ###
xeyes &
gnome-calculator &
gedit fetch-stock-prices.py &
Finally, run the ping command in the foreground:

ping www.cyberciti.biz
Press Ctrl-Z key to suspend (suspend) ping command job.

jobs command example

To display the job status of the current shell, enter:

$ Jobs
Example output:

[1] 7895Running gpass &
[2] 7906Running gnome-calculator &
[3] -7910Running gedit fetch-stock-prices.py &
[4] + 7946Stoppedping cyberciti.biz
To display the process name to "p" at the beginning of the ID or job name, enter:

$ Jobs -p% p
or

$ Jobs% p
Example output:

[4] -Stoppedping cyberciti.biz
The character% is a designated tasks. In this example, you can use the job name at the beginning of string to suspend it, such as% ping.

How to display the process ID does not contain information other normal?

by jobs -l command (lowercase L) option lists detailed information about each job, run:

$ Jobs -l

Fig.01: Displays the status of jobs in the shell

How to list only the most recent status change process?

First, start a new job as follows:

$ Sleep100 &
Now, only hinted that since the last stop or quit after the operations, enter:

$ Jobs -n
Sample output:

[5] -Runningsleep100 &
 

Display only the process ID (PID)

-p option by jobs command displays only PID:

$ Jobs -p
Sample output:

7895
7906
7910
7946
7949
 

How to display only the job that is running it?

-r option by jobs command displays only running jobs, enter:

$ Jobs -r
Sample output:

[1] Running gpass &
[2] Running gnome-calculator &
[3] -Running gedit fetch-stock-prices.py &
 

How to display only jobs that have stopped working?

-s option through the jobs command displays only stopped working a job, enter:

$ Jobs -s
Sample output:

[4] + Stoppedping cyberciti.biz
To continue with the ping cyberciti.biz job, enter the following command bg:

$ Bg% 4

About / usr / bin / jobs and shell built-in instructions

Enter the following command to find out whether the type jobs command shell builtin or external command or are:

$ Type -a jobs
Example output:

jobs is a shell builtin
jobs is / usr / bin / jobs
In almost all cases, you need to use the BASH / KSH / POSIX shell built-in jobs command. / Usr / bin / jobs command can not be used in the current shell. / Usr / bin / jobs command to work in different environments, and does not share his father bash / ksh shell the job.
     
         
         
         
  More:      
 
- tar decompression problems gzip: stdin: not in gzip format (Linux)
- Unable to start the network after restart clone a virtual machine (Linux)
- Eight kinds of techniques to solve hard problems Linux (Linux)
- Ubuntu server 8.04 Firewall Guide (Linux)
- Linux Network Analysis Tcpdump Command Guide (Linux)
- The Definitive Guide to Linux NAT network connection (Linux)
- Linux command -nohup & (Linux)
- ls command: 15 Level Linux interview question (Linux)
- Storm how to ensure that at least once semantics (Programming)
- The REVERSE function of DB2 (Database)
- How to build Memcached Docker container (Server)
- Camera-based face recognition OpenCV crawl and storage format (Python) (Linux)
- Linux common network tools: batch scanning of nmap hosting service (Linux)
- Chkconfig command Detailed service is added and shut down the system in two ways to start service under Linux (Linux)
- Java, hashcode, equals and == (Programming)
- How to create SWAP files in Ubuntu 14.04 (Linux)
- PuTTY Xming achieve the X11 forwarding ssh (Server)
- Definition Format Oracle basis of various statements (Database)
- Linux system server network security management tips (Linux)
- Additional SQL Server 5123 database reported error (Database)
     
           
     
  CopyRight 2002-2022 newfreesoft.com, All Rights Reserved.