Sponsored Content
Full Discussion: Newlines in shell variables
Top Forums Shell Programming and Scripting Newlines in shell variables Post 102112 by narcvs on Wednesday 15th of March 2006 04:39:09 PM
Old 03-15-2006
Newlines in shell variables

Hello,

I'm trying to create a shell variable with newlines inside it, so that when I echo the variable and pipe it to, say, awk, it output with the newlines. Why is this so problematic? I frankly don't know, but BASH seems to be stripping my variable of newlines. Here's an example

$ cat script.sh
#!/bin/bash

list="hello " # first hello
list=$list`echo ""` # should then put a newline after hello
list=$list'

' # This should too
list=$list"world" # and world on the next row

echo $list # now see what happens...
$ ./script.sh
hello world


WHY DOES IT TAKE AWAY MY NEWLINES? I solved it by creating a temporary file, output everything there, and then read from the file, but I don't want to do that!

Does anyone know how to store newlines in a shell varabile? Thanks a bunch,

Marcus
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

variables in shell

hi, i'm new in shell scripting and i'm working on bash on solaris 5.9 after try many stuff with unexpected results, i wonder: it is not posible in bash, to use a variable that was created inside a loop, out of it? i mean, for instance: cat mytext | \ while read text do viko=$text... (2 Replies)
Discussion started by: viko
2 Replies

2. OS X (Apple)

Add CRs (newlines)

I have a long file originally created with vi but at some point saved with MS Word. At another time I substituted all occurrences of ^M with XXX. Now I'd like to get this back to vi but with the XXX converted to newline. I'm using whatever version of vim Apple employs. Thanks, Gale (10 Replies)
Discussion started by: Gale Gorman
10 Replies

3. Shell Programming and Scripting

$0 shell variables

Would appreciate if someone can explain the ${0##*/} line. What does it do? I am aware that $0 is the script name, $# is number of arguments passed in, $* is all the arguments. With the curly brackets {} added in, what's the eventual effect? Does ${0##*/} actually equals $0$#$*? (something like... (3 Replies)
Discussion started by: new2ss
3 Replies

4. Shell Programming and Scripting

Ignoring newlines in my search

I have a file that has lines that are deliminated with '^A', but some of the lines go for a few lines and I need those lines to be appended into one line. All of the lines start with 'low debug' and end with ' " 0 '. How can I read each line from start to finish without some of the data... (7 Replies)
Discussion started by: ndedhia1
7 Replies

5. Shell Programming and Scripting

Extract pattern before two newlines

Hi All, My file looks like this: 1 2 3 3 4 5 6 7 8 8 7 6 3 4 5 3 6 7 3 4 5 1 2 4 3 4 6 2 4 6 As you can see there are two newlines after the next pattern of numbers begin. (4 Replies)
Discussion started by: shoaibjameel123
4 Replies

6. Shell Programming and Scripting

Delete newlines after every one space

Hi All, I have a file which looks like this: abc 3456 computer 3214 printer 0.9823 computer 3214 Can anyone please let me know how I can format my text like this? abc 3456 computer 3214 printer 0.9823 computer 3214 I know how to space to newlines using tr but don't know how to do... (4 Replies)
Discussion started by: shoaibjameel123
4 Replies

7. UNIX for Dummies Questions & Answers

Remove newlines

Hi buddy's my file are like this: s.no,name,band,sal 1,"suneel",,10 2,"bargav sand",,20 30," ebdug gil",,4 but i want s.no,name,band,sal 1,"suneel",,10 2,"bargav sand",,20 30,"ebdug gil",,4 any command or Shell script for this. please help me it's urgent to implement (33 Replies)
Discussion started by: Suneelbabu.etl
33 Replies

8. UNIX for Dummies Questions & Answers

How to write Config shell script to pass variables in master shell script?

Dear Unix gurus, We have a config shell script file which has 30 variables which needs to be passed to master unix shell script that invokes oracle database sessions. So those 30 variables need to go through the database sessions (They are inputs) via a shell script. one of the variable name... (1 Reply)
Discussion started by: dba1981
1 Replies

9. Shell Programming and Scripting

How to write config shell script to pass variables in master shell script?

Dear Unix gurus, We have a config shell script file which has 30 variables which needs to be passed to master unix shell script that invokes oracle database sessions. So those 30 variables need to go through the database sessions (They are inputs) via a shell script. one of the variable name... (1 Reply)
Discussion started by: dba1981
1 Replies

10. Shell Programming and Scripting

File formatting with newlines

Hi All - I am in need of some help in formating the below file Requirement - 1) replace newlines with space 2) replace '#~# ' with newline ----------------------- sample inputfile a I|abc|abc|aaa#~# I|sddddd|tya|dfg sfd ssss#~# I|tya1|tya2|dfg|sfd|aaa#~#... (5 Replies)
Discussion started by: J1nx007
5 Replies
asadmin-list-domains(1AS)					   User Commands					 asadmin-list-domains(1AS)

NAME
asadmin-list-domains, list-domains - lists the domains in the given domains directory SYNOPSIS
list-domains [--domaindir install_dir/domains] [--terse=false] [--echo=false] list-domains lists the domains in the given domains directory. This command is supported in local mode only. OPTIONS
--domaindir directory where the domains are located. If specified, path must be accessible in the filesystem. If not specified, the domains in the default install_dir/domains directory are listed. --terse indicates that any output data must be very concise, typically avoiding human-friendly sentences and favoring well- formatted data for consumption by a script. --echo setting to true will echo the command line statement on the standard output. Example 1: Using list-domains asadmin> list-domains List of domains: domain1 running samples not running Where: the domain1 and samples are listed and their status printed. EXIT STATUS
0 command executed successfully 1 error in executing the command asadmin-create-domain(1AS), asadmin-delete-domain(1AS), asadmin-start-domain(1AS), asadmin-stop-domain(1AS) J2EE 1.4 SDK March 2004 asadmin-list-domains(1AS)
All times are GMT -4. The time now is 10:52 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy