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Top Forums Shell Programming and Scripting Purpose of "read" and "$END$" in ksh ? Post 302535723 by kshji on Friday 1st of July 2011 01:00:35 PM
Old 07-01-2011
It looks that your ksh is not ksh. If your ksh is ksh then output is 12.2L01. Also zsh give result 12.2L01. But all other about posix shell give nothing.
Code:
echo Application Release 12.2L01 as of Fri Nov 2 22:11:46 EDT 2007 | read a b verno d
DBVer=$(/usr/bin/printf "%7s" $verno)
echo $DBVer   # echo 12.2L01

What to do ?
Download ksh.

How about
Code:
printf "%(%Y-%m-%d+%H:%M:%S)T\n" now

What is output ? If you have ksh93 then output is date.
You can do same always using method which works in all about posix shells.
Code:
read a b verno d <<EOF
$(cat  $AMS/version)
EOF
echo "verno:$verno"

read from pipe is nice but works only in ksh and zsh.

In some environment you need to look
Code:
cd /usr/bin
ls -l  ksh* dash* bash* sh*

and to look which are linked - maybe not real some shell, only about - linked.

Last edited by kshji; 07-02-2011 at 02:23 AM.. Reason: $( ) ...
 

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print(1)							   User Commands							  print(1)

NAME
print - shell built-in function to output characters to the screen or window SYNOPSIS
ksh print [ -Rnprsu [n]] [arg...] DESCRIPTION
ksh The shell output mechanism. With no flags or with flag - or -, the arguments are printed on standard output as described by echo(1). OPTIONS
The following options are supported: -n suppresses new-line from being added to the output. -R -r (raw mode) ignore the escape conventions of echo. The -R option will print all subsequent arguments and options other than -n. -p causes the arguments to be written onto the pipe of the process spawned with |& instead of standard output. -s causes the arguments to be written onto the history file instead of standard output. -u [ n ] flag can be used to specify a one digit file descriptor unit number n on which the output will be placed. The default is 1. EXIT STATUS
The following exit values are returned: 0 Successful operation. >0 Output file is not open for writing. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ SEE ALSO
echo(1), ksh(1), attributes(5) SunOS 5.10 15 Apr 1994 print(1)
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