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Awk to remove Blank lines in pipedelimited

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# 1  
Old 05-20-2009
Awk to remove Blank lines in pipedelimited
Awk to remove Blank lines in pipedelimited
Help me correct this.

Code:
nawk -F"|" '{a=$0; gsub(FS, "",a); if(length(a)) print}'  file1

Quote:
nawk: illegal primary in regular expression | at
input record number 1, file file1
source line number 1

Code:
nawk -F"|" '{gsub(FS, "",$0);if(length($0)) print}' file1

Quote:
nawk: illegal primary in regular expression | at
input record number 1, file file1
source line number 1
# 2  
Old 05-20-2009
Try...
Code:
nawk -F'|' '{if (NF > 0) print}'  file1

# 3  
Old 05-20-2009
Code:
awk  '{a=$0;gsub(/[|| ]/,"");if(length($0))print a}' file


-Devaraj Takhellambam
# 4  
Old 05-20-2009
Quote:
Originally Posted by devtakh
Code:
awk  '{a=$0;gsub(/[|| ]/,"");if(length($0))print a}' file


-Devaraj Takhellambam
I tried the below code this works
Code:
  nawk -F'[|]' '{a=$0; gsub(FS, "",a); if (length(a)) print }' file1

Why do i have to use [] please help
# 5  
Old 05-20-2009
Quote:
Originally Posted by pinnacle
I tried the below code this works
Code:
  nawk -F'[|]' '{a=$0; gsub(FS, "",a); if (length(a)) print }' file1

Why do i have to use [] please help

Not sure may be this is special condition for awk
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