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Shell Programming and Scripting

Merge Lines

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# 1  
Old 04-11-2014
Merge Lines
Hello
I have an input as below

Code:
[2014-03-03t23:15:45] this is test
[2013-14-20t12:23:12]we
are(
)
[
]
one
[2012-03-03t23:15:45] end of description

I am looking for output

Code:
[2014-03-03t23:15:45] this is test
[2013-14-20t12:23:12]we are ()[] one
[2012-03-03t23:15:45] end of description

# 2  
Old 04-11-2014
To get output like that, you're going to have to provide a detailed description describing when spaces are to be added to text in an existing line, and when spaces are to be added before or after text when lines are joined.

What have you tried?
# 3  
Old 04-12-2014
Code:
awk 'NR == 1 {p = $0; next}
  {if($0 ~ /^\[[12][0-9][0-9][0-9]-.+\]/) {print p; p = $0}
  else {p = (p $0)}}
  END {print p}' file

Output:
Code:
[2014-03-03t23:15:45] this is test
[2013-14-20t12:23:12]weare()[]one
[2012-03-03t23:15:45] end of description

Code:
awk 'NR == 1 {p = $0; next}
  {if($0 ~ /^\[[12][0-9][0-9][0-9]-.+\]/) {print p; p = $0}
  else {p = (p " " $0)}}
  END {print p}' file

Output:
Code:
[2014-03-03t23:15:45] this is test
[2013-14-20t12:23:12]we are( ) [ ] one
[2012-03-03t23:15:45] end of description

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