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Shell Programming and Scripting

Number of Tabs

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# 1  
Old 09-21-2010
Number of Tabs
hi,

I have a text and values are seperated by tab. each line has different tabs. I am getting values and writing values in a specific format using:

Code:
awk 'NR>1 {print "First value: "$1" Second:"$2" Third: "$3 } /home/gcsw/readtext.txt > /home/gcsw/writeresults.txt

but how can i determine the total number of values in a line? because each line has different number of tabs?
Last edited by gc_sw; 09-21-2010 at 07:35 AM..
# 2  
Old 09-21-2010
NF can tell you the number of column on each line.

You need provide some samples to us.
# 3  
Old 09-21-2010
Code:
12345    asdf   7777
56789   qwer
11223   tyuo  9999   rty
123444  fghj   3333   bnm  6666

i want my awk function to determine that
"First line has 3 values seperated by tab."
"Second line has 2 values seperated by tab."
"Third line has 4 values seperated by tab."
"Forth line has 5 values seperated by tab."

and then i will use this information in:

Code:
awk 'NR>1 {print "First value: "$1" Second:"$2" Third: "$3 } /home/gcsw/readtext.txt > /home/gcsw/writeresults.txt

and i want to get, for example, fifth value of the forth column by impementing
Code:
awk 'NR=4 {print "$5" } /home/gcsw/readtext.txt > /home/gcsw/writeresults.txt

how can i do it?
# 4  
Old 09-21-2010
Code:
awk 'NR==4 {print $5;next}NR-1 {print "First value: "$1" Second:"$2" Third: "$3 }' file > newfile

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