Script utility to read a file line line and separate line in fields
Posted in File-management
Script utility to read a file line line version 2. This is simpler version of readline script, it also demonstrate how to process text data file line by line and then separate line in fields, so that you can process it according to your need.
#!/bin/bash # # Shell script utility to read a file line line version 2 # This is simpler version of readline script # This script also demonstrate how to process data file # line by line and then separate line in fields, so that # you can process it according to your need. # # You can call script as follows # ./readline2 # ----------------------------------------------- # Copyright (c) 2005 nixCraft <http://cyberciti.biz/fb/> # This script is licensed under GNU GPL version 2.0 or above # ------------------------------------------------------------------------- # This script is part of nixCraft shell script collection (NSSC) # Visit http://bash.cyberciti.biz/ for more information. # ------------------------------------------------------------------------- ### Main script stars here ### # Store file name here FILE="/etc/passwd" # field seprator, default is :, you can use blank space or # other character, if you have more than one blak space in # input line then use awk utility and not the cut :) FS=":" while read line do # store field 1 F1=$(echo $line|cut -d$FS -f1) # store field 2 F2=$(echo $line|cut -d$FS -f6) # store field F3=$(echo $line|cut -d$FS -f7) echo "User \"$F1\" home directory is $F2 and login shell is $F3" done < $FILE
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Tags: bash shell script, blank space, echo line, f1 store, f6, f7, gnu gpl version, home directory, input line, login shell, loop method, script collection, while loop ~ Last updated on: April 9, 2008
you can use IFS
IFS=":"
while read a b c d e f g
do
echo $a $b #and so on
done < /etc/passwd