extract a field by logic Post: 302280726

7 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

logic needed to extract lines

Hi All, Are there any logic to extract the only lines between first two *TM* (which is marked in blue)? VOL1HST99 0 HDR1A999999S 999999HST99 HDR2F001200012001 UHL1 0729609000001 000000 *TM*^^^^^^^^^^^^^^^^^^^^^^ 01012610252171017301805000...

2. Shell Programming and Scripting

how to extract last occurence of the field

path = /first/second/third/fourth. i want to extract /first/second/third from path.my program something like this .... path=/first/second/third/fourth noc=`echo $path|tr '/' '\n'|wc -w` var='echo $noc|cut -d'/' -f 1-$noc --> is giving error. why $noc is not working here.any other...

3. UNIX Desktop Questions & Answers

Extract third field of third line

Hi, how do I extract the third field of the first line? I know how to get the first line or the third field of a file, but I can't get the single entry. awk 'NR==1' file.txt awk '{print $3}' file.txt Please tell me how to combine these. And how do I set this value into a variable? ...

4. UNIX for Dummies Questions & Answers

Extract a certain field from a CSV?

EDIT: This problem has been solved thanks to the help of scottn. Okay, so I have a CSV. Let's say it has the following entries in it: Jackie Chan,1954,M Chuck Norris,1930,M Bruce Lee,1940,M How would I, for example, extract the gender out of a certain person, maybe based on the year of...

5. Shell Programming and Scripting

Extract Field from a file

6. Shell Programming and Scripting

Extract lines whose third field is 0

Hi, I have a file with colon separated values like below. How can i get those lines whose third field is 0 (zero). In the below example, lines starting with stapler and tempo has its third field as 0 $ cat list.txt galaxy:b:5:world stapler:a:0:hello abc:a:4:stomper kepler:uic:5:jam...

7. UNIX for Dummies Questions & Answers

Ps output field extract

This is the output from ps -ef cmd . I have to extract the fourth (C) and the seventh (TIME) field root 3932344 3801216 Apr 08 - 0:00 /usr/sbin/rsct/bin/ERrmd root 3997836 1 0 Apr 08 - 0:00 /usr/sbin/uprintfd root 4128894 3801216 0 Apr 08 - 0:09...

LEARN ABOUT FREEBSD

column

COLUMN(1)						    BSD General Commands Manual 						 COLUMN(1)

NAME

     column -- columnate lists

SYNOPSIS

     column [-tx] [-c columns] [-s sep] [file ...]

DESCRIPTION

     The column utility formats its input into multiple columns.  Rows are filled before columns.  Input is taken from file operands, or, by
     default, from the standard input.	Empty lines are ignored.

     The options are as follows:

     -c      Output is formatted for a display columns wide.

     -s      Specify a set of characters to be used to delimit columns for the -t option.

     -t      Determine the number of columns the input contains and create a table.  Columns are delimited with whitespace, by default, or with
	     the characters supplied using the -s option.  Useful for pretty-printing displays.

     -x      Fill columns before filling rows.

ENVIRONMENT

     The COLUMNS, LANG, LC_ALL and LC_CTYPE environment variables affect the execution of column as described in environ(7).

EXIT STATUS

     The column utility exits 0 on success, and >0 if an error occurs.

EXAMPLES

	   (printf "PERM LINKS OWNER GROUP SIZE MONTH DAY " ; 
	   printf "HH:MM/YEAR NAME
" ; 
	   ls -l | sed 1d) | column -t

SEE ALSO

     colrm(1), ls(1), paste(1), sort(1)

HISTORY

     The column command appeared in 4.3BSD-Reno.

BUGS

     Input lines are limited to LINE_MAX (2048) bytes in length.

BSD
								   July 29, 2004							       BSD