nixCraft

ricc · #1 (**permalink**) 08-18-2005, 06:27 PM

Hi Everyone,
I am just unable to cut the 1st field. I require to cut the 1st field to work on that specific job-id, but I am just unable to do it.

I think there is something wrong in the o/p file generated.

Code:

job-ID  prior   name       user         state submit/start at     queue     slots	 ja-task-ID 
-----------------------------------------------------------------------------------------------------------------
    466 0.55500 runit38    user1         r     08/16/2005 10:22:25 comp1-3@comp1-3.cha     1        
    467 0.55500 runit39    user1         r     08/16/2005 10:22:25 comp1-3@comp1-3.cha     1        
    468 0.55500 runit40    user1         r     08/16/2005 10:22:30 comp1-4@comp1-4.cha     1        
    469 0.55500 runit41    user1         r     08/16/2005 10:22:30 comp1-4@comp1-4.cha     1        
    470 0.55500 runit42    user1         r     08/16/2005 10:22:35 comp1-5@comp1-5.cha     1        
    471 0.55500 runit43    user1         r     08/16/2005 10:22:35 comp1-5@comp1-5.cha     1        
    465 0.55500 runit37    user1         r     08/15/2005 18:17:35 comp1-3@comp1-3.cha     1        
    472 0.55500 runit44    user1         r     08/16/2005 10:22:35 comp1-4@comp1-4.cha     1        
    473 0.55500 runit45    user1         r     08/16/2005 10:22:40 comp1-4@comp1-4.cha     1

If I pipe the above o/p to cut -f1 -d" " . It displays only

Code:

job-ID 
------------------------------------------------------------------------------------------------------

and doesnot show anything below the line

Can anyone pls see what could be wrong with the out put or is there anything else to do with the options of cut.

Thanks

nixcraft · #2 (**permalink**) 08-18-2005, 06:39 PM

When output filed has more blank spaces or it change location then it is better to use awk which is pattern-directed scanning and processing language. For example print username from /etc/passwd using : as field separator

Code:

awk -F: '{ print $1 }' /etc/passwd

Coming to your specific example, use awk as follows:

Code:

awk '{ print $1 }' filename.txt
cat filename.txt | awk '{ print $1 }'

ricc · #3 (**permalink**) 08-19-2005, 12:06 PM

Thank you Nixcraft.

It worked. Pls don't mind if I ask too many things you all think are actually trivial.

I am new to this all and believe me, I am very happy that I get help from the members of this forum. As for now, I am still learning and hope that one day I can surely help someone else.

Thanks again for the help.

nixcraft · #4 (**permalink**) 08-19-2005, 04:31 PM

Noop we don't mind qestions... so keep posting all your questions (read my sig)

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nixCraft

unable to cut required field 1 from this output

unable to cut required field 1 from this output

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