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So basically what the code means: sort lines of mpcashqc.xtr by the third field with "|" as separator. and pipe it to awk. Awk takes it (again with "|" field separator) and makes a sum of field 3...

Thanks ctsgnb, I have never tried your method but I will now.

If you have the data comma separated and want to sort the second column:

$ sort -t, file1 -k 2,2 | uniq -u >file2

You can create directories, subdirectories and subsubdirectories in one swoop with the mkdir -p command (brace expansions) using the bash shell (3.0 or higher!).

mkdir -p...

sed 's/\(.*\) \(.*\) \(.*\) \(.*\) \(.*\)/\4 \5 \2 \3/' file_in
root lag book day
boot tag look pay
moot sag took may


You can use >file_out to write the results back to a file

sed...

regex="abx"; for file in *.cvs; do awk -v str=$regex '{if ($6==str) print $1,$3,$4}' $file >$file.out; done

Shell script:

ls -R | grep ":" | sed -e 's/://' -e 's/[^-][^\/]*\//--/g' -e 's/^/ /' -e 's/-/|/'

Here is an alternative way using awk and sed - changing ALL the *.pdf files made up in a similar way (double digit _ double digit _ double digit.pdf) in all the subdirectories from your current one...

Zam, in ksh this works just fine:

echo 'dddd$dddd' | tr "$" " "
dddd dddd

-Stefan

I am not sure whether anybody mentioned to you but when you use a variable under 'awk' that is originally a string (because you piped it as a string from somewhere or you used it as a string in the...

I still don't get it. Could you show an example of an output you would like to have? Also, why is the 1 second line repeated?

Firefox 4.0 just came out. Works great!

Strange. I just tried it on my system, which is:

BASH_VERSINFO=([0]="2" [1]="05b" [2]="0" [3]="1" [4]="release" [5]="powerpc-apple-darwin7.0")
BASH_VERSION='2.05b.0(1)-release'

It works fine....

Please follow this URL for info provided by Neo:

https://www.unix.com/members-only/111844-current-bits-system-awards-alpha-release.html

sed 's_\([0-9][a-zA-Z]\)*\([0-9][0-9]*\)_\1\2\^\2_g' <chars | tr '^' '\t'
C21 21
F231 231
H42 42
1C10 10
1F113 113


If sed doesn't take the \t as a tab then pipe it through tr...

awk -v x=0 '{if ($1==name) x=$2} END {print name, x}' name=Mary list.txt
Mary 10
awk -v x=0 '{if ($1==name) x=$2} END {print name, x}' name=Tom list.txt
Tom 0

For people who want to pull a number of lines from a long file using a specific formula

n (number of iterations in a loop)
a (offset number)
b (stretch factor)

example with n {1..100}

for...

Some confused me too. Very interesting questions.

grep 'Marcus' list.txt | awk '{print $2}; END { if (!found) print "0" }' It returns "0" but it also returns "0" on other names that are not Mary, when you search for Mary. Is that what you wanted?

How consistent is the header and the data? Please give an example. Or, is it always one single line of header and two lines of data throughout the whole file? Please explain.

awk '{a[int($2/r)]++}END{for(i in a) print "[" i*r "-" (i*r)+r-1 "] " a[i]}' r=5 myfile

Hi Pawan:

Maybe you should concatenate your DNA part. Use this code:
head -n +1 <dna >dna_concat; tail -n +2 <dna | tr -d '\n' >>dna_concat

It reads in the description/name of your code on the...

Hi Corona - nice code, but Pawan needs these lines concatenated, since this is DNA. Meaning, it is actually one long SINGLE string of information, he just broke it into 3 lines. So, if "GAT" is...

You can delete the filename extensions easily by doing:
for i in *.txt; do mv $i ${i%%.*}; done

If you want to put some file extensions back to files, copy the files into their own directory (for...

This should do it: tr '\r\n' '|' <in | sed 's/||/$/g' | tr '$' '\n'

You can pipe it to awk (for example: awk -F"|" '{print$0}' see below) and prove that it has the field separator "|" and the...