Help with data appending to a file


 
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Top Forums Shell Programming and Scripting Help with data appending to a file
# 1  
Old 03-13-2013
Question Help with data appending to a file

Hi
I have a file called text.txt contains
Code:
x
y
z

when i run a command i will get output like below
Code:
x 20 
z 30

i want to insert x, z value in text.txt file and should be like this
Code:
x 20
y 0
z 30

can anyone help me please?

Last edited by Franklin52; 03-13-2013 at 06:17 AM.. Reason: Please use code tags for data and code samples
# 2  
Old 03-13-2013
Code:
# cat file1
x
y
z
# cat file2
x 20
z 30
# join -a1 -o 0 2.2 -e 0 file1 file2
x 20
y 0
z 30

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