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Try this one:
cat file | tr '\n' '$' | sed 's/$ / /g' | tr '$' '\n' | awk '$1 == "initiators" {print}'Note that this assumes that "$" does not appear in your text. If it...

I'm not quite sure I understand your question. Are you wanting to be able to find the slope and R squared for each row if the x values aren't always 0, 3, 6 and 10?

Try this then:

FOLDER="/nas/testfolder"
FILE=$(ls -alt ${FOLDER} | awk '$NF ~ /^Test/ {print $NF}' | head -1)
if [[ -z $FILE ]]
echo "No file name matches your pattern in $FOLDER"
else
...

I'm not quite sure I understand. Are you trying to print the first column of the first entry whose third and fourth columns are 00:00:01 and acroread, respectively?

Edit: To add to RudiC's answer:...

I think I have a fix for my code above. Try this:
FOLDER="/nas/testfolder"
FILE=$(ls -alt ${FOLDER} | awk '$NF ~ /^Test/ {print $NF}' | head -1)
FILE_TIME=$(date --reference=$FOLDER/$FILE +%s)...

Try this:

ls -al | awk '$NF ~ /pattern/ {print $7,$8,$9}' | sort -rM | head -1Long list of all files in the current directory showing hidden files. Pipe to awk. If the last field (the file names)...

Jethrow's code worked for me, but I couldn't copy and paste the whole thing at once. When I copied line by line it ran and gave me:

#User@Host:xyz@[ipaddress] | Query_time: t1 | Lock_time: t2 |...

I can help you digest it. I honestly meant to explain every solution that I post on this site.

Most of the stuff before "if (denomy != 0)" are just variables that are used to calculate the slopes...

Sorry if this looks awful. It seems to work though.
>awk '{sumy=$2+$3+$4+$5} {sumxy=$3*3+$4*6+$5*10} {sumy2=$2*$2+$3*$3+$4*$4+$5*$5}
{denomy=(4.0*sumy2-sumy*sumy)}...

This will get you the slope of the least squares line.
>awk '{sumy=$2+$3+$4+$5} {sumxy=$3*3+$4*6+$5*10} {print $1,$2,$3,$4,$5,(4.0*sumxy-19*sumy)/(4.0*145-361)}' file.txt
t1 2 3 5 8 0.611872
t2 0...

I'm assuming that you want the gradient of the best fit line. Is that correct?

Can you post a sample of file1.txt? Backticks ( ` ) execute what is between them first. Since XYZ is not a command, you might have to escape the command, i.e. put a \ in front of each backtick. See...

What a strange problem. I'm also surprised that the stats department was able to discover the ~500 mile limitation.