gawk script - Shell Programming and Scripting

zoo591 · #1 05-28-2008

Hey guys need your help with an gawk script... here's what I have so far

gawk '^d/ {printf "%-20s %-10s %-10s %-10s %-4s%2s %5s\n",$9,$1,$3,$4,$6,$7,$8}' ls.kbr

The file ls.kbr is a capture of 'ls-al'

What I want gawk to do is:
1) Find only directories (this is working)
2) skip lines beginning containing . and .. directories
3) skip lines where the directory name is longer than 8 characters
4) determine the longest length of each field, and use that
length as a width specifier for each %s in printf(). You can see I'm
hardcoding the length for now.

TIA
Zoo591

awk · #2 05-28-2008

Code:

ls -la | awk '/^d/ && length($9) <= 8 {
          if ( $9 == "." || $9 == "..") next;
          F[++j]=$0;
          if (max1 < length($9)) max1=length($9);
          if (max2 < length($1)) max2=length($1);
          if (max3 < length($3)) max3=length($3);
          if (max4 < length($4)) max4=length($4);
          if (max5 < length($6)) max5=length($6);
          if (max6 < length($7)) max6=length($7);
          if (max7 < length($8)) max7=length($8);
}
END{ for (i=1; i<=j; i++)
   {
    split(F[i], M);
    printf "%-*s %-*s %-*s %-*s %-*s%*s %*s\n", max1, M[9], max2, M[1], max3, M[3], max4, M[4], max5, M[6],max 6, M[7],max7, M[8]
   }
}'

Quote:

Originally Posted by zoo591

Hey guys need your help with an gawk script... here's what I have so far

gawk '^d/ {printf "%-20s %-10s %-10s %-10s %-4s%2s %5s\n",$9,$1,$3,$4,$6,$7,$8}' ls.kbr

The file ls.kbr is a capture of 'ls-al'

What I want gawk to do is:
1) Find only directories (this is working)
2) skip lines beginning containing . and .. directories
3) skip lines where the directory name is longer than 8 characters
4) determine the longest length of each field, and use that
length as a width specifier for each %s in printf(). You can see I'm
hardcoding the length for now.

TIA
Zoo591

zoo591 · #3 05-28-2008

Nicely done. You are numero uno AWK!

Quote:

Originally Posted by awk

Code:

ls -la | awk '/^d/ && length($9) <= 8 {
          if ( $9 == "." || $9 == "..") next;
          F[++j]=$0;
          if (max1 < length($9)) max1=length($9);
          if (max2 < length($1)) max2=length($1);
          if (max3 < length($3)) max3=length($3);
          if (max4 < length($4)) max4=length($4);
          if (max5 < length($6)) max5=length($6);
          if (max6 < length($7)) max6=length($7);
          if (max7 < length($8)) max7=length($8);
}
END{ for (i=1; i<=j; i++)
   {
    split(F[i], M);
    printf "%-*s %-*s %-*s %-*s %-*s%*s %*s\n", max1, M[9], max2, M[1], max3, M[3], max4, M[4], max5, M[6],max 6, M[7],max7, M[8]
   }
}'

More UNIX and Linux Forum Topics You Might Find Helpful
Thread	Thread Starter	Forum	Replies	Last Post
Calculating field using AWK, or GAWK script	Trellot	UNIX for Dummies Questions & Answers	4	10-28-2007 12:43 PM
gawk will work or not ?	tkbharani	Shell Programming and Scripting	3	03-13-2007 03:26 PM
gawk HELP	sandeep_hi	Shell Programming and Scripting	6	06-19-2006 05:56 AM
how to use variables and gawk in a script?	pau	Shell Programming and Scripting	9	05-29-2006 06:39 AM
rs and ors in gawk ...????	moxxx68	Shell Programming and Scripting	2	10-05-2004 09:52 AM

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode