Read pipe data Post: 302742689

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I use read often in scripts to filter the right part into a variable like: $ print "abc cde efg" | read k l ; print "k=$k, l=$l" k=, l= This works on linux and unix versions I work with. On OSX 10.4 this doesn't work. I found a workaround but would like to know why the original line...

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No process to read data written to a pipe on AIX

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UNIX Pipe -Exit when there are no bytes to read

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LEARN ABOUT OSF1

from

from(1) 						      General Commands Manual							   from(1)

NAME

       from - Shows whom mail messages are from

SYNOPSIS

       from [-s sender] [user]

       The from command prints out the mail header lines in your mailbox file.

OPTIONS

       Prints headers for mail sent by sender.	Specifies a mail spool directory.

	      Use this flag if you want to examine a mailbox in a directory other than /usr/spool/mail, which is the system default.

DESCRIPTION

       If user is specified, then user's mailbox is examined instead of your own.

EXAMPLES

       To display the message headings in your mailbox, enter: from

	      The  names  of  the  senders and the message dates are displayed.  To display the message headings for mail sent by a specific user,
	      enter: from -s dale

	      Displays only the message headings of the messages sent from user dale.  To display the message headings in a specific user's  mail-
	      box, enter: from dawn

	      The message headings from user dawn's mailbox are displayed, provided you have read permission for dawn's mailbox.

FILES

       User mailbox files.

SEE ALSO

       Commands:  biff(1), mail(1), mailx(1)

																	   from(1)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

read after pipe problem OSX10.4

Discussion started by: relyveld

2. Programming

Problem in read() from a pipe

Discussion started by: JDS

3. Programming

pipe read and write with many forked children

Discussion started by: steveneliuk

4. UNIX for Advanced & Expert Users

AIX 5.3 - There is no process to read data written to a pipe

Discussion started by: vigsgb