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Shell Programming and Scripting

Delete a comma from string

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# 1  
Old 03-26-2009
Delete a comma from string
Hey guys,

Its a simple question though, but since I'm new to this shell scripting world ... it's kind of difficult.

Say I have some string as :

ListenAddress=ABCServer1,ABCServer2

I want to output the value of ListenAddress as ...

ABCServer1 ABCServer2

so, basically, I want to display the string, delete the comma in between the two servers and replace it with a white space.

Can any one help ??
# 2  
Old 03-26-2009
Code:
$ echo "ListenAddress=ABCServer1,ABCServer2" | awk -F "=" '{print $2}' | sed 's/,/ /g'
ABCServer1 ABCServer2

# 3  
Old 03-26-2009
In most cases the combinations of awk/sed/grep piping into each other call for a simpler solution:
Code:
echo 'ListenAddress=ABCServer1,ABCServer2' | nawk -F'[=,]' '{print $2,$3}'

# 4  
Old 03-26-2009
Hammer & Screwdriver Here is another approach
Code:
> echo $ListenAddress                      
ABCServer1,ABCServer2
> echo $ListenAddress | tr "," " "
ABCServer1 ABCServer2

# 5  
Old 03-26-2009
Thanks a lot mates
# 6  
Old 03-26-2009
by the way, can i assign the out put of this to a variable ??
# 7  
Old 03-26-2009
Quote:
Originally Posted by MisterKhan
by the way, can i assign the out put of this to a variable ??
Sure:

Both servers into the same variable:

(you can use a different assignment variable in the read statement if needed)

Code:
oldIFS="$IFS"
IFS=","
echo $ListenAddress | read ListenAddress
IFS="$oldIFS"
echo ListenAddress
ABCServer1 ABCServer2

Or

Each server into it's own variable:

Code:
oldIFS="$IFS"
IFS=","
echo $ListenAddress | read server1 server2
IFS="$oldIFS"
echo $server1
ABCServer1
echo $server2
ABCServer2

both examples assume you only have the two servers in the "ListenAddress" variable to begin with.
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