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any good idea on this?

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Top Forums Shell Programming and Scripting any good idea on this?
# 1  
Old 09-29-2006
any good idea on this?
txt file like this,

1 2 3 4456
a bb c d 3 f e
1 k 32 d m f e
123 m 2 k


every line contains 3 or more columns, all the columns are separated by space, and every column includes 1 to 3 character.

what I wanna do is deleting the first three columns, and keep the rest no matter how long the rest will be, is there a fast way to do this?
# 2  
Old 09-29-2006
try this

Code:
awk ' 
{ 
for ( i = 4 ; i < NF ; ++i ) 
        printf( "%s " , $i );
printf( "%s\n" , $NF )
}' file

# 3  
Old 09-29-2006
Hammer & Screwdriver
hmm, thank you anbu23,

I am just wondering if there is a magic method to do this....Smilie
# 4  
Old 09-29-2006
Use cut:
Code:
cut -d" " -f 4- filename

# 5  
Old 09-29-2006
you can also use cut to do this

Code:
cut -d" " -f4-

# 6  
Old 09-29-2006
MySQL
amazing!

Glenn Arndt and anbu23, you guys are really smart!

so the "-" after 4 means "to the end"? I check the manpage of cut, did not find answer for this at first glance.
# 7  
Old 09-29-2006
Yes. Similarly, you can also do -4 to get all the fields up to and including the 4th.
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