08-04-2008
comparison of 2 files
Kindly help on follows.
I have 2 files. One file contains only one column of mobile numbers. And total records in a file 12 million. Second file contains 2 columns mobile numbers and balance. and total records 30 million. I want to find out balance of each data in file 1 corresponding to file 2. I tried egrep -f but it will take very long time. And also use awk '{OFS="|"}NR<=FNR{a[$1]=$1}NR>FNR{print $1,$2,a[$1]}' a b but its given error after 7 million says long data. Can you provide me other commands. please
Thanks in advance..
Last edited by kamal_418; 08-04-2008 at 06:20 AM..
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NEATEN(1) General Commands Manual NEATEN(1)
NAME
neaten - neaten up output columns
SYNOPSIS
neaten [ format ]
DESCRIPTION
Neaten reads from its standard input and neatens up columns separated by white space using the specified format. The format is a string
consisting of a positive integer followed by an alignment character and another integer. The alignment character is usually a decimal
point ('.'), but it can be any non-digit.
The alignment character is used as the central point of each column. The total column field width will be the number to the left of the
alignment character plus one for the alignment character itself plus the number to the right of the alignment character.
If a field does not contain the alignment character, it will be printed to the left of where the alignment character would have appeared.
If a field is too long to print within the specified format, the entire field will be printed and that row will not be aligned with the
rest.
The default format is "8.8".
EXAMPLE
To examine a file with columns of numbers:
neaten 10.8 < input | more
BUGS
Columns wider than the total width of the format specification will be printed without any separating white space.
The program does not do anything special with tabs on the input.
AUTHOR
Greg Ward
SEE ALSO
cnt(1), rcalc(1), rlam(1), total(1)
RADIANCE
11/15/93 NEATEN(1)