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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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continue(3tcl)						       Tcl Built-In Commands						    continue(3tcl)

__________________________________________________________________________________________________________________________________________________

NAME
continue - Skip to the next iteration of a loop SYNOPSIS
continue _________________________________________________________________ DESCRIPTION
This command is typically invoked inside the body of a looping command such as for or foreach or while. It returns a TCL_CONTINUE code, which causes a continue exception to occur. The exception causes the current script to be aborted out to the innermost containing loop command, which then continues with the next iteration of the loop. Catch exceptions are also handled in a few other situations, such as the catch command and the outermost scripts of procedure bodies. EXAMPLE
Print a line for each of the integers from 0 to 10 except 5: for {set x 0} {$x<10} {incr x} { if {$x == 5} { continue } puts "x is $x" } SEE ALSO
break(3tcl), for(3tcl), foreach(3tcl), return(3tcl), while(3tcl) KEYWORDS
continue, iteration, loop Tcl continue(3tcl)
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