Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

Assign the result of a multiline command to a variable

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Assign the result of a multiline command to a variable
# 8  
Old 11-21-2013
Quote:
Originally Posted by MadeInGermany
The quotes are not useful. Your previous post was already multiline.
I am not sure it preserved literal newlines, though. It may have only preserved them as spaces.
# 9  
Old 11-21-2013
Thank you all of you, guys.
You helped me a lot.
# 10  
Old 11-21-2013
Quote:
Originally Posted by Corona688
Quote:
Originally Posted by MadeInGermany
The quotes are not useful. Your previous post was already multiline.
I am not sure it preserved literal newlines, though. It may have only preserved them as spaces.
MadeInGermany is correct; the quotes are a no-op. Double quotes only prevent expansions which can produce multiple words, i.e. field splitting and pathname expansion. However, this type of expansion is not allowed on text which is to be assigned to a variable (the same is true of the word in a case word in ... esac statement).

Command substitution will strip any trailing newlines, but this cannot be prevented and has nothing to do with quoting.

Regards,
Alister
Last edited by alister; 11-21-2013 at 01:36 PM..
This User Gave Thanks to alister For This Post:
neutronscott
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. UNIX for Beginners Questions & Answers

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... (3 Replies)
Discussion started by: mohca2020
3 Replies

2. UNIX for Beginners Questions & Answers

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... (8 Replies)
Discussion started by: ektubbe
8 Replies

3. Shell Programming and Scripting

Remove a character and assign result to a variable

I am reading lines from a file that contain a number sign (#) before a three or four digit number: #1043 #677 I can remove the '#' and get just the number. However, I then want to assign that number to a variable and use it as part of a path further on in my program: /mydir/10/1043 for... (5 Replies)
Discussion started by: KathyB148
5 Replies

4. Shell Programming and Scripting

Assign awk gsub result to a variable

Hello, I have searched but failed to find what exactly im looking for, I need to eliminate first "." in a output so i can use something like the following echo "./abc/20141127" | nawk '{gsub("^.","");print}' what i want is to use gsub result later on, how could i achieve it? Let say... (4 Replies)
Discussion started by: EAGL€
4 Replies

5. UNIX for Dummies Questions & Answers

Assign SQL result in shell variable

Hi im trying to assign the result of the db2 command to a variable inside a shell script... : tab_cnt=`db2 "select count(*) from syscat.tables where tabname = 'ABC' and tabschema = 'MATT01'" |head -4|tail +4|cut -c 11` : echo $tab_cnt when i echo im getting a blank value.. im expecting... (1 Reply)
Discussion started by: matt01
1 Replies

6. Shell Programming and Scripting

Assign result to variable

Hi friends, firstly, i can run following expression and i took 100 value. sqlplus -s username/password@TTTEST @umt.sql umt.sql exists "select t.deger from parametre t where t.id=30". result of this query =100 i need to assign this value(100) to variable(for example x... (2 Replies)
Discussion started by: temhem
2 Replies

7. UNIX for Dummies Questions & Answers

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... (10 Replies)
Discussion started by: ragz_82
10 Replies

8. Shell Programming and Scripting

How to assign the result of a SQL command to more than one variable in shell script.

Hi Friends... Please assist me to assign the result of a SQL query that results two column, to two variables. Pls find the below code that I write for assigning one column to one variable. and please correct if anything wrong.. #! /bin/sh no=' sqlplus -s uname/password@DBname... (4 Replies)
Discussion started by: little_wonder
4 Replies

9. Shell Programming and Scripting

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... (9 Replies)
Discussion started by: dedmakar
9 Replies

10. 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
Login or Register to Ask a Question