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AWK with inconsistent field layout

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# 1  
Old 07-16-2010
Question AWK with inconsistent field layout
Input File:
Code:
1234567890123456789012345678901234
----------------------------------
11111  XXX       xxxxx  6666666666
22222       YYY         2222222222
33333  AAA  TTT  xxxxx  9999999999
44444            
55555  RRR  UUU         5555555555
66666       TTT  nnnnn  2222222222
77777  XXX  RRR         0000000000
88888  444  %%%         7777777777

Expected output:
Code:
12345678901234567
-----------------
11111  6666666666
22222  2222222222
33333  9999999999
44444            
55555  5555555555
66666  2222222222
77777  0000000000
88888  7777777777

What is the best way to eliminate fields in between columns 1 & 5 and bring them together. I am assuming AWK can do this somehow. I keep getting confused with the potential missing fields 2 thru 4. The file is fixed length though, so Field 5 always starts at byte 25. Is byte substitution possible? I am over-thinking it.
# 2  
Old 07-16-2010
Code:
$ cat file
11111  XXX       xxxxx  6666666666
22222       YYY         2222222222
33333  AAA  TTT  xxxxx  9999999999
44444
55555  RRR  UUU         5555555555
66666       TTT  nnnnn  2222222222
77777  XXX  RRR         0000000000
88888  444  %%%         7777777777
brksvx59# awk ' { print $1 "  " ( NF == 1 ? "" : $NF ) } ' file
11111  6666666666
22222  2222222222
33333  9999999999
44444
55555  5555555555
66666  2222222222
77777  0000000000
88888  7777777777

# 3  
Old 07-16-2010
Quote:
Originally Posted by anbu23
Code:
$ cat file
11111  XXX       xxxxx  6666666666
22222       YYY         2222222222
33333  AAA  TTT  xxxxx  9999999999
44444
55555  RRR  UUU         5555555555
66666       TTT  nnnnn  2222222222
77777  XXX  RRR         0000000000
88888  444  %%%         7777777777
brksvx59# awk ' { print $1 "  " ( NF == 1 ? "" : $NF ) } ' file
11111  6666666666
22222  2222222222
33333  9999999999
44444
55555  5555555555
66666  2222222222
77777  0000000000
88888  7777777777

This won't work for:
Code:
11111  XXX       xxxxx  6666666666
22222       YYY         2222222222
33333  AAA  TTT  xxxxx  9999999999
44444
55555  RRR  UUU         5555555555
66666       TTT  nnnnn  2222222222
77777  XXX  RRR         0000000000
88888  444  %%%         7777777777
99999       TTT  nnnnn

assuming the fixed width format as shown above:
Code:
nawk ' { print $1, (length>25)?$NF:""} ' myFile

Last edited by vgersh99; 07-16-2010 at 03:56 PM..
# 4  
Old 07-16-2010
Or

Code:
awk ' { print $1 "  " substr($0,25,11) } ' file

# 5  
Old 07-16-2010
Code:
cut -c-6,24- infile

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