Format output of bash script

Question

I am trying to display certain details using a bash script but the output of the bash script differs from the output of the terminal.

Terminal Output:

ubuntu@ubuntu:~/ubin$ cat schedule.text  | grep 09/06/12
Sat 09/06/12 Russia           00:15 Czech Republic   A
Sat 09/06/12 Netherlands      21:30 Denmark          B
ubuntu@ubuntu:~/ubin$

Bash Script Output:

ubuntu@ubuntu:~/ubin$ bash fixture.sh 
Sat 09/06/12 Russia 00:15 Czech Republic A Sat 09/06/12 Netherlands 21:30 Denmark B
ubuntu@ubuntu:~/ubin$

As you can see the output of the bash script differs from the output of the terminal. My bash script output has everything in a single line.

fixture.sh:

A=$(date +%d/%m/%y) #get today's date in dd/mm/yy fmt
fixture=$(cat /home/ubuntu/ubin/schedule.text | grep $A)
echo $fixture

So, my question is how do I make my bash script output similar to the terminal output?

William Pursell · Accepted Answer · 2012-06-08 21:14:45Z

2

Use double quotes:

echo "$fixture"

When the variable fixture has embedded newlines and is unquoted, bash splits it into different arguments to echo. To simplify, suppose fixture is the string "a\nb". Without quotes, bash passes two arguments to echo: a and b. With quotes, bash only passes one argument and does not discard the newline.

answered Jun 8, 2012 at 21:14

William Pursell

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2 Comments

ronnie Over a year ago

ok double-quotes did the trick. Can you provide a little detail or point me to the correct documentation of double-quote trick.

ronnie Over a year ago

Thanks for the explanation.Will accept the answer in 6 minutes.

Hai Vu · Accepted Answer · 2012-06-08 21:23:40Z

1

You don't need echo, or cat:

A=$(date +%d/%m/%y) #get today's date in dd/mm/yy fmt
grep $A /home/ubuntu/ubin/schedule.text

Or, if you prefer one-liner:

grep $(date +%d/%m/%y) /home/ubuntu/ubin/schedule.text

answered Jun 8, 2012 at 21:23

Hai Vu

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1 Comment

ronnie Over a year ago

oh I didn't knew that. Thanks

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