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Full Discussion: Bash Command To Delete Number from Array
Top Forums Shell Programming and Scripting Bash Command To Delete Number from Array Post 302852647 by pmurray21 on Thursday 12th of September 2013 04:52:37 AM
Old 09-12-2013
Bash Command To Delete Number from Array
Hi,

I am writing a script to split a log file - the log could contain multiple days worth of logs. The second line of the log contains the string "Version ". In my test log which comprises of two days worth of logs, this string appears twice - once each day.

Essentially I would like to split on the line before this line, unfortunately there is nothing unique in it. The script thus far gets the line number that "Version " is on and populates an array. My problem is....I am not sure how to subtract one from each array element. The main part of my code looks like this:

Code:
IFS=$'\n'
arr=($(grep -n "Version " $filename))
arr=("${arr[@]%%:*}")
unset IFS
for i in "${arr[@]}"
do
  echo "${arr[a]}"
  csplit -f $filename $filename $i &>/dev/null
  rm -f $filename'00'
done
exit 1;

I delete the file ending in 00 currently as a hack because it currently splits on line 2, so that log actually only contains one line. And the result from the echo is:
Code:
2 1177299

So in this instance from my one log, I want to create two logs - the second log will begin on line 1177298

Thoughts on how to do this, or a better way to achieve it?

Cheers
 

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