Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Grep result from dd command
Top Forums Shell Programming and Scripting Grep result from dd command Post 302900264 by hce on Tuesday 6th of May 2014 02:05:08 AM
Old 05-06-2014
Grep result from dd command
Hi,

I am running following command in a bash script for testing IO and use grep to get throughput number, but it did not work, it displayed everything:

Code:
dd if=/dev/zero of=/dev/null bs=1G count=1 oflag=dsync | grep bytes | awk '{print $7}'

1+0 records in
1+0 records out
536870912 bytes (537 MB) copied, 8.857 s, 60.6 MB/s

How can I extract only the result "60.6 MB/s"?

Also, can I have timeout if it takes too long?

Thank you
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

To have a numeric result from grep

I am new to unix. i need to know how to use grep to grep and expression from a file. and pass the result as a 0 for found and 1 for not found. I can only go up to grep 'Checking Subscription Status' ranos.log. Please help. Thank you. (2 Replies)
Discussion started by: Hak Dee
2 Replies

2. Shell Programming and Scripting

assign subst|grep|sed command result to a variable

Hi, I'm quite new to scripting and I want to modify following line of an existing script: MYVAR=`subst |grep 'L:\\\:' | sed -e 's/.*\\\//'`; What I have to do is to use the content of a variable instead of the constant expression 'L:\\\:' as the grep string to be matched. Assuming I already... (5 Replies)
Discussion started by: snowbiker99
5 Replies

3. Shell Programming and Scripting

diaplaying the grep result

Hi, My code is like this if swlist -a revision 2>/dev/null | grep ABC 2>/dev/null then echo "Found Above mentioned ABC Version, please remove it first..." fi This is displaying the result to the screen. i want to first suppress that and for that i wrote the below... (1 Reply)
Discussion started by: rag84dec
1 Replies

4. Shell Programming and Scripting

How to negate grep result?

Here is my script so far: set dirs = ` find . -name "message.jar" 2> /dev/null | cut -d "/" -f 2 ` | uniq foreach dir ( $dirs ) if (grep $dir/* someText==null) --> how do I write this in script? print $dir end end (4 Replies)
Discussion started by: mmdawg
4 Replies

5. Shell Programming and Scripting

Use grep result to execute next command

Hi I am trying to run 2 servers using a script one after the other. I start the first one: run.sh -c servername >> jboss_log.txt & Then I have to wait until I see Started message in the log file before I launch the other server. I can't use sleep because I am not sure how long it'll... (5 Replies)
Discussion started by: iririr
5 Replies

6. Shell Programming and Scripting

pipe result from grep

Trying to create a command line script to look for all files matching a pattern, grep for a specific value in each file, and write out the filename long list. It's possible the filename won't containe the value. { echo “Running....” for fname in 811_Intermediate_File_* do grep -l... (3 Replies)
Discussion started by: gavineq
3 Replies

7. Shell Programming and Scripting

If the grep command returns any result set

my intension is to use a grep command inside the shell script and if any row is returned or not.. depending on the resultset i have to code on further. how to check this i mean.. could anyone help me out with the if condition how to use it here !! (4 Replies)
Discussion started by: gotam
4 Replies

8. Solaris

grep result in newline

Hi While trying to do a search on solaris, the grep results seems to be appearing on the same line instead of the new line. Wed Jan 18 14:45:48 weblogic@test:/abcd$ grep qainejb02 * qa_cluster_biz_view_tc_intl_servers_ports_2:qainejb02 7101 qa_cluster_servers_2:qainejb02... (2 Replies)
Discussion started by: ganga.dharan
2 Replies

9. UNIX for Dummies Questions & Answers

Bash - CLI - grep - Passing result to grep through pipe

Hello. I want to get all modules which are loaded and which name are exactly 2 characters long and not more than 2 characters and begin with "nv" lsmod | (e)grep '^nv???????????? I want to get all modules which are loaded and which name begin with "nv" and are 2 to 7 characters long ... (1 Reply)
Discussion started by: jcdole
1 Replies

10. Shell Programming and Scripting

Grep command giving different result for different users for same command

Hello, I am running below command as root user #nodetool cfstats tests | grep "Memtable switch count" Memtable switch count: 12 Where as when I try to run same command as another user it gives different result. #su -l zabbix -s /bin/bash -c "nodetool cfstats tests | grep "Memtable switch... (10 Replies)
Discussion started by: Pushpraj
10 Replies

LEARN ABOUT MINIX

zgrep

ZGREP(1)                                                      General Commands Manual                                                     ZGREP(1)

NAME

       zgrep - search possibly compressed files for a regular expression

SYNOPSIS

       zgrep [ grep_options ] [ -e ] pattern filename...

DESCRIPTION

       Zgrep  invokes  grep  on  compressed  or  gzipped  files.   These  grep  options  will  cause  zgrep  to  terminate  with  an  error  code:
       (-[drRzZ]|--di*|--exc*|--inc*|--rec*|--nu*).  All other options specified are passed directly to grep.  If no file is specified,  then  the
       standard input is decompressed if necessary and fed to grep.  Otherwise the given files are uncompressed if necessary and fed to grep.

       If the GREP environment variable is set, zgrep uses it as the grep program to be invoked.

EXIT CODE

       2 - An option that is not supported was specified.

AUTHOR

       Charles Levert (charles@comm.polymtl.ca)

SEE ALSO

       grep(1), gzexe(1), gzip(1), zdiff(1), zforce(1), zmore(1), znew(1)

                                                                                                                                          ZGREP(1)
All times are GMT -4. The time now is 04:11 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy