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Full Discussion: Problem with while loop reading every line of a text file
Top Forums Shell Programming and Scripting Problem with while loop reading every line of a text file Post 302949222 by neutronscott on Wednesday 8th of July 2015 09:12:43 AM
Old 07-08-2015
both of these read operations work on the same stdin. you need to assign to a different fd and use that for one of them. the easiest way to do this is to ditch the useless use of cat (uuoc award).

Code:
while read line <&9; do
  echo "$line"
  echo "press enter key"
  read
done 9<passwd_sample

Now we redirect passwd_sample into fd 9 for the entire while block, yet only the first read operation operates on fd 9. in this way, we'll keep our position in the file with each iteration and read line-by-line but not interfere with the read that wants input from the terminal.

if you're using bash, you can use read -s -N 1 for grabbing a single key. otherwise you'll need to press enter rather than "any" key.
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LEARN ABOUT OSX

httppower

httppower(8)							     powerman							      httppower(8)

NAME

       httppower - communicate with HTTP based power distribution units

SYNOPSIS

       httppower [--url URL]

DESCRIPTION

       httppower  is  a  helper program for powerman which enables it to communicate with HTTP based power distribution units.	It is run interac-
       tively by the powerman daemon.

OPTIONS

       -u, --url URL
	      Set the base URL.

INTERACTIVE COMMANDS

       The following commands are accepted at the httppower> prompt:

       auth user:pass
	      Authenticate to the base URL with specified user and password, using ``basic'' HTTP authentication which sends the user and password
	      over the network in plain text.

       seturl URL
	      Set the base URL.  Overrides the command line option.

       get [URL-suffix]
	      Send an HTTP GET to the base URL with the optional URL-suffix appended.

       post [URL-suffix] key=val[&key=val]...
	      Send an HTTP POST to the base URL with the optional URL-suffix appended, and key-value pairs as argument.

FILES

       /usr/sbin/httppower
       /etc/powerman/powerman.conf

ORIGIN

       PowerMan was originally developed by Andrew Uselton on LLNL's Linux clusters.  This software is open source and distributed under the terms
       of the GNU GPL.

SEE ALSO

       powerman(1), powermand(8), httppower(8), plmpower(8), vpcd(8), powerman.conf(5), powerman.dev(5), powerman-devices(7).

       http://sourceforge.net/projects/powerman

powerman-2.3.5							    2009-02-09							      httppower(8)
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