Assign bash command to variable Post: 302311555

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assign awk command result to a variable

#!/bin/sh # ## MYSTRING = `awk '/myApp.app/' /Users/$USER/Library/Preferences/loginwindow.plist` if then echo String not found defaults write /Users/$USER/Library/Preferences/loginwindow AutoLaunchedApplicationDictionary -dict-add -string Hide -bool YES -string Path -string...

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Cut Command value assign to variable

Hi, I am new to UNIX Scripting. I have been trying to use the CUT command to retrieve part of the header from a file and assign it to a variable. I have tried searching a lot, but I am still unsuccessful. Sample Header: HJAN BALANCE 20090616 I need to retrieve the date here, which always...

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assign awk output to bash variable

greetings all, I am have a heck of a time trying to accomplish a very simple thing. I have an array of "shortname<spaces>id" created from a dscl output. I want to assign shortname=word1 and id=word2. I have tried shortname=$(${textArray} | awk '{print $1}') - and get 'awk : cannot open...

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bash assign mysql query single field to variable

I'm running a bash script query and assigning the output to a variable like this: exists=`mysql -u $USER_NAME --password=$PASSWORD -D "somedb" \ -e "SELECT * FROM somedb.sometable WHERE field1 ='$a' \ AND field2 ='$b' LIMIT 0 , 30";` which returns something like: echo...

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Hi ,I am trying to assign string to variable ,but it doesn't work Also could you show me different ways to use grep,(I am trying to get the first,second and first column form file,and I am counting the chars) let name=`grep "$id" product | cut -c6-20`

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In bash script, how to assign output of a command to a variable while keeping tabs?

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Need to pass variable in a command and assign value to a variable

Hello All, Hope you're doing well ! I am trying below command to be passed in a shell script, header_date_14 is a variable and $1 is the name of a file I intend to pass as a command line argument, however command line argument is not being accepted. header_date_14=$(m_dump...

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How do I assign the output of a command to a variable within a loop in bash?

In the else of the main if condition . else set lnk = $(readlink -f <path> | cut -d '/' -f7) echo "$lnk" if ] When I run the above on command line , the execution seems to be fine and I get the desired output. But when I try to assign it to a variable within a loop...

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Assign a command to a variable - Help

Hi, I have the script below. When i assign SSH_COMMAND to "ssh -o ConnectTimeout=2 ${SERVER} ${AS_SUDO} ${COMMANDS}" and then execute it as ${SSH_COMMAND} I get the following error: ssh: Could not resolve hostname sudo: Name or service not known ssh: Could not resolve hostname sudo: Name or...

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Using read to assign value to bash variable not working

Hi, I am attempting to assign the output of the following command, to two bash variables, var1 and var2 using "read," but it doesn't seem to be working. # openstack hypervisor stats show | awk -F'|' 'NR==14{print $2,$3}' vcpus 92 # echo $? 0 # openstack hypervisor...

LEARN ABOUT ULTRIX

ppmtopgm

ppmtopgm(1)						      General Commands Manual						       ppmtopgm(1)

NAME

       ppmtopgm - convert a portable pixmap into a portable graymap

SYNOPSIS

       ppmtopgm [ppmfile]

DESCRIPTION

       Reads  a  portable  pixmap  as  input.  Produces a portable graymap as output.  The output is a "black and white" rendering of the original
       image, as in a black and white photograph.  The quantization formula used is .299 r + .587 g + .114 b.

       Note that although there is a pgmtoppm program, it is not necessary for simple conversions from pgm to ppm , because any  ppm  program  can
       read  pgm  (and	pbm  ) files automatically.  pgmtoppm is for colorizing a pgm file.  Also, see ppmtorgb3 for a different way of converting
       color to gray.  And ppmdist generates a grayscale image from a color image, but in a way that makes it easy to differentiate  the  original
       colors, not necessarily a way that looks like a black and white photograph.

QUOTE

       Cold-hearted orb that rules the night
       Removes the colors from our sight
       Red is gray, and yellow white
       But we decide which is right
       And which is a quantization error.

SEE ALSO

       pgmtoppm(1),ppmtorgb3(1),rgb3toppm(1),ppmdist(1),ppm(5),pgm(5)

AUTHOR

       Copyright (C) 1989 by Jef Poskanzer.

								   10 April 2000						       ppmtopgm(1)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

assign awk command result to a variable

Discussion started by: dedmakar

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Cut Command value assign to variable

Discussion started by: ragz_82

3. Shell Programming and Scripting

assign awk output to bash variable

Discussion started by: macnetdaemon

4. Shell Programming and Scripting

bash assign mysql query single field to variable

Discussion started by: unclecameron