Size of file /dev/./null 2>&1 Post: 302951939

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1. UNIX for Dummies Questions & Answers

/dev/null 2>&1 question

Hi, suppose you have the following line at your crontab : 5 * * * * /usr/mine/script > /dev/null 2>&1 now i understood that the " > /dev/null 2>&1 outputs both Standard outpout and Standard Error messages to the /dev/null device or file... the first part , " > /dev/null " transfers...

2. UNIX for Dummies Questions & Answers

Creating a file / /dev/null

First of all, hello there cOmMuNity ! :cool: Well, I've got two basic questions: 1) In how many ways it's possible to create a file ? I know one manner using "touch", other typing something like echo "" > file ... The fact is that I need to overwrite the file if it exists, and touch...

3. UNIX for Advanced & Expert Users

/dev/NULL can't open this file ??

when i write the following two statements : cp /dev/NULL /clocal/mqbrkrs/user/mqsiadm/sanjay/dspmq_temp cat /dev/NULL > /clocal/mqbrkrs/user/mqsiadm/sanjay/dspmq_temp its gives me errors like : cp: /dev/NULL: A file or directory in the path name does not exist. cat : /dev/NULL can't open...

4. Solaris

What is /dev/tty /dev/null and /dev/console

Hi, Anyone can help My solaris 8 system has the following /dev/null , /dev/tty and /dev/console All permission are lrwxrwxrwx Can this be change to a non-world write ?? any impact ??

5. Shell Programming and Scripting

Meaning of "> /dev/null 2>&1"

Hi, I am new into UNIX shell scripting and I am wondering what is the meaning of the below text which appears at the end of each line in the ".sh" file: > /dev/null 2>&1 For example, the line below: sh $HOME/stats/Rep777/Act_777.sh omc omc > /dev/null 2>&1 I know for sure what "sh...

6. Shell Programming and Scripting

Difference between ">/dev/null 2>&1" and "2>&1 >/dev/null"

Does >/dev/null 2>&1 and 2>&1 >/dev/null mean the same?

7. UNIX for Dummies Questions & Answers

/dev/null 2>&1 Versus /dev/null 2>1

How are these two different? They both prevent output and error from being displayed. I don't see the use of the "&" echo "hello" > /dev/null 2>&1 echo "hello" > /dev/null 2>1

8. UNIX for Dummies Questions & Answers

/dev/null a file using xargs

Hi, I'm currently using the following command to wipe clean a log file which can't be straight out RM'd: cat /dev/null > server.log I'm building this into a script and I'm current working on a command to run on each machine to do this automatically however I have multiple files so I need...

9. Shell Programming and Scripting

Redirecting standard out to /dev/null goes to file "/dev/null" instead

I apologize if this question has been answered else where or is too elementary. I ran across a KSH script (long unimportant story) that does this: if ; then CAS_SRC_LOG="/var/log/cas_src.log 2>&1" else CAS_SRC_LOG="/dev/null 2>&1" fithen does this: /usr/bin/echo "heartbeat:...

10. AIX

Housekeeping null 2>&1 in /dev

Hello, Does anyone know how to housekeeping the null 2>&1 file in /dev? its fill up my system, please help. Thanks :b:

LEARN ABOUT CENTOS

pmdaelasticsearch

PMDAELASTICSEARCH(1)					       Performance Co-Pilot					      PMDAELASTICSEARCH(1)

NAME

       pmdaelasticsearch - elasticsearch performance metrics domain agent (PMDA)

DESCRIPTION

       pmdaelasticsearch is a Performance Metrics Domain Agent (PMDA) which exports metric values from elasticsearch.

INSTALLATION

       This PMDA requires that elasticsearch is running on the local host and is accepting queries on TCP port 9200

       Install the elasticsearch PMDA by using the Install script as root:

	       # cd $PCP_PMDAS_DIR/elasticsearch
	       # ./Install

       To uninstall, do the following as root:

	       # cd $PCP_PMDAS_DIR/elasticsearch
	       # ./Remove

       pmdaelasticsearch is launched by pmcd(1) and should never be executed directly.	The Install and Remove scripts notify pmcd(1) when the
       agent is installed or removed.

FILES

       $PCP_PMDAS_DIR/elasticsearch/es.conf
	   optional configuration file for pmdaelasticsearch

	   elasticsearch PMDA for PCP

       $PCP_PMDAS_DIR/elasticsearch/Install
	   installation script for the pmdaelasticsearch agent

       $PCP_PMDAS_DIR/elasticsearch/Remove
	   undo installation script for the pmdaelasticsearch agent

       $PCP_LOG_DIR/pmcd/elasticsearch.log
	   default log file for error messages from pmdaelasticsearch

SEE ALSO

       pmcd(1).

3.8.10							       Performance Co-Pilot					      PMDAELASTICSEARCH(1)

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

/dev/null 2>&1 question

Discussion started by: BAM

2. UNIX for Dummies Questions & Answers

Creating a file / /dev/null

Discussion started by: 435 Gavea

3. UNIX for Advanced & Expert Users

/dev/NULL can't open this file ??

Discussion started by: varungupta

4. Solaris

What is /dev/tty /dev/null and /dev/console

Discussion started by: civic2005