Split column into two on first occurence of any number Post: 302949130

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Top Forums Shell Programming and Scripting Split column into two on first occurence of any number Post 302949130 by drl on Tuesday 7th of July 2015 12:12:44 PM

07-07-2015

Registered User

Hi.

The sed utility has a useful construct for what was matched, the ampersand, "&":

Code:

#!/usr/bin/env bash

# @(#) s1	Demonstrate augmented replacement, sed.

# Infrastructure, functions, debugging, printing.
LC_ALL=C ; LANG=C ; export LC_ALL LANG
pe() { for _i;do printf "%s" "$_i";done; printf "\n"; }
pl() { pe;pe "-----" ;pe "$*"; }
db() { ( printf " db, ";for _i;do printf "%s" "$_i";done;printf "\n" ) >&2 ; }
db() { : ; }
C=$HOME/bin/context && [ -f $C ] && $C sed

FILE=${1-data1}

pl " Input file $FILE:"
cat $FILE

pl " Results:"
sed 's/[0-9][0-9]*/|&/' $FILE

exit 0

producing:

Code:

$ ./s1

Environment: LC_ALL = C, LANG = C
(Versions displayed with local utility "version")
OS, ker|rel, machine: Linux, 2.6.26-2-amd64, x86_64
Distribution        : Debian 5.0.8 (lenny, workstation) 
bash GNU bash 3.2.39
sed GNU sed version 4.1.5

-----
 Input file data1:
abc def 1 xyz zzz
bca cde 2 yyy xxx
ghi jkl 99999 pqr stu

-----
 Results:
abc def |1 xyz zzz
bca cde |2 yyy xxx
ghi jkl |99999 pqr stu

Best wishes ... cheers, drl

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LEARN ABOUT LINUX

column

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

NAME

     column -- columnate lists

SYNOPSIS

     column [-ntx] [-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.

     -n      By default, the column command will merge multiple adjacent delimiters into a single delimiter when using the -t option; this option
	     disables that behavior. This option is a Debian GNU/Linux extension.

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