Shell Programming and Scripting

Name                  FirstName            Lastname
------               ---------            ----------
 Name1            Balaji                 NandaKishore  
Name123            Vijaya                  krsihna

  Name            FirstName             Lastname
 -------           --------             ----------
Name1             Balaji                  NandaKishore  
Name123          Vijaya                  krsihna

$ nawk '{ printf "%-8s %-12s %-8s \n" ,$1,$2,$3 }' infile
Name     FirstName    Lastname
------   ---------    ----------
Name1    Balaji       NandaKishore
Name123  Vijaya       krsihna
$

#!/usr/bin/env bash

# @(#) s1	Demonstrate automatic alignment, align.
# http://freecode.com/projects/align

# Utility functions: print-as-echo, print-line-with-visual-space, debug.
# export PATH="/usr/local/bin:/usr/bin:/bin"
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 align

FILE=${1-data1}

pl " Input data file $FILE:"
cat $FILE

pl " Results:"
align $FILE

exit 0

% ./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 GNU/Linux 5.0.8 (lenny) 
GNU bash 3.2.39
align 1.7.0

-----
 Input data file data1:
Name                  FirstName            Lastname
------               ---------            ----------
Name1            Balaji                 NandaKishore  
Name123            Vijaya                  krsihna


-----
 Results:
Name    FirstName Lastname
------  --------- ----------
Name1   Balaji    NandaKishore
Name123 Vijaya    krsihna

$ sed 's/  */\t/g' infile | expand -t 12
 
Name        FirstName   Lastname
------      ---------   ----------
Name1       Balaji      NandaKishore            
Name123     Vijaya      krsihna