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Top Forums Shell Programming and Scripting How to cut a file using " ", but fields can be separated with more than one " " Post 302280294 by joeyg on Monday 26th of January 2009 12:38:27 PM
Old 01-26-2009
Hammer & Screwdriver

Code:
> cat file146
val1 val2 val3
val4  val5 val6
val7   val8  val9

> tr -s " " <file146 | cut -d" " -f2
val2
val5
val8

> tr -s " " <file146 | cut -d" " -f2 >file146.out
> cat file146.out
val2
val5
val8

OR....

Code:
> mylist=`tr -s " " <file146 | cut -d" " -f2`
> echo ${mylist}
val2 val5 val8

 

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CUT(1)							      General Commands Manual							    CUT(1)

NAME
cut - select out columns of a file SYNOPSIS
cut [ -b | -c] list [file...] cut -f list [-d delim] [ -s] OPTIONS
-b Cut specified bytes -c Select out specific characters -d Change the column delimiter to delim -f Select out specific fields that are separated by the -i Runs of delimiters count as one -s Suppres lines with no delimiter characters, when used EXAMPLES
cut -f 2 file # Extract field 2 cut -c 1-2,5 file # Extract character columns 1, 2, and 5 cut -c 1-5,7- file # Extract all columns except 6 DESCRIPTION
[file...]" delimiter character ( see delim)" with the -f option. Lines with no delimiters are passwd through untouched" Cut extracts one or more fields or columns from a file and writes them on standard output. If the -f flag is used, the fields are sepa- rated by a delimiter character, normally a tab, but can be changed using the -d flag. If the -c flag is used, specific columns can be specified. The list can be comma or BLANK separated. The -f and -c flags are mutually exclusive. Note: The POSIX1003.2 standard requires the option -b to cut out specific bytes in a file. It is intended for systems with multi byte characters (e.g. kanji), since MINIX uses only one byte characters, this option is equivalent to -c. For the same reason, the option -n has no effect and is not listed in this man- ual page. SEE ALSO
sed(1), awk(9). CUT(1)
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