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Full Discussion: Redirect output of command line to for loop
Top Forums Shell Programming and Scripting Redirect output of command line to for loop Post 302753249 by tapia on Tuesday 8th of January 2013 10:03:02 AM
Old 01-08-2013
Redirect output of command line to for loop
I would like to redirect output of command line in for loop as $line.

Output should be processed as line but instead it throw whole output.

Could somebody help me on how to redirect output of command line and process it line by line without sending output to any file.

below is my code
Code:
result=`${HOME}/sqlplus << EOF
command
select * from xyz;
exit
EOF`
###############################
for line in ${result}
do
echo $line
echo ${result} | grep xxx

Now
Code:
${HOME}/sqlplus << EOF
command
select * from xyz;
exit

produce output like below .
Code:
xxx   yyyy 11111   22222
xxx   yyyy 33333   44444
aaa  bbbb  5555    66666
aaa  bbbb  7777    99999

 

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LEARN ABOUT REDHAT

line

line(1)                                                            User Commands                                                           line(1)

NAME

       line - read one line

SYNOPSIS

       line

DESCRIPTION

       The  line utility copies one line (up to and including a new-line) from the standard input and writes it on the standard output. It returns
       an exit status of 1 on EOF and always prints at least a new-line. It is often used within shell files to read from the user's terminal.

EXIT STATUS

       Exit status is:

       0        Successful completion

       >0       End-of-file on input.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE         |      ATTRIBUTE VALUE        |
       +-----------------------------+-----------------------------+
       |Availability                 |SUNWcsu                      |
       +-----------------------------+-----------------------------+

SEE ALSO

       sh(1), read(2), attributes(5)

SunOS 5.10                                                          1 Feb 1995                                                             line(1)
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