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Shell Programming and Scripting
How to enter a return key in bash script?
Post 302424571 by duker61 on Tuesday 25th of May 2010 05:42:48 PM
05-25-2010
How to enter a return key in bash script?
Hi,
I'm porting an install script from AIX to Red Hat (2.6.18-164.el5 #1 SMP)
I have this script working in both AIX and HP-UX.
The script is a wrapper for a Micro Focus Server Express install program. It responds to the install program questions with a here-now list. Responses includes y, n, strings and a return. It looks to see if the software has already been installed and uses 2 different sets of responses.
The code for the here-now:
When I run this in Red Hat it fails. It seems to confuse the shell when it sees a blank line as it seems to dump the rest of the list and loops on a missing response.
Here is the failure point.
It responds correctly to the first 2 "y"s in the list. When it hits the blank line (return) is seems to accept a return but it grabs the remaining list of responses so the install program loops waiting for a response.
I've tried a blank line, multiple blank lines, a line with a blank character, /n and /r. Nothing seems to work.
Any help would be appreciated.
Mike
I'm porting an install script from AIX to Red Hat (2.6.18-164.el5 #1 SMP)
I have this script working in both AIX and HP-UX.
The script is a wrapper for a Micro Focus Server Express install program. It responds to the install program questions with a here-now list. Responses includes y, n, strings and a return. It looks to see if the software has already been installed and uses 2 different sets of responses.
The code for the here-now:
Quote:
if [[ -d /opt/lib/mflmf ]]; then
#
# perform install with no prompt to create /opt/lib/mflmf directory
#
print " - run install with existing /opt/lib/mflmf direc
tory"
sh ./install << EOF
y
y
y
n
y
n
y
64
n
n
EOF
else
#
# perform full install from scratch
print " - run install with no /opt/lib/mflmf directory"
sh ./install << EOF
y
y
y
n
y
/opt/lib/mflmf
y
n
y
64
n
n
EOF
fi
#
# perform install with no prompt to create /opt/lib/mflmf directory
#
print " - run install with existing /opt/lib/mflmf direc
tory"
sh ./install << EOF
y
y
y
n
y
n
y
64
n
n
EOF
else
#
# perform full install from scratch
print " - run install with no /opt/lib/mflmf directory"
sh ./install << EOF
y
y
y
n
y
/opt/lib/mflmf
y
n
y
64
n
n
EOF
fi
Here is the failure point.
| environment (and any compatibility environments). |
| Please press return when you are ready: |
| y |
| n |
| y |
| /opt/lib/mflmf |
| y |
| n |
| y |
| 64 |
| n |
| n |
| :::::::::::::: |
| docs/env.txt |
| :::::::::::::: |
It responds correctly to the first 2 "y"s in the list. When it hits the blank line (return) is seems to accept a return but it grabs the remaining list of responses so the install program loops waiting for a response.
I've tried a blank line, multiple blank lines, a line with a blank character, /n and /r. Nothing seems to work.
Any help would be appreciated.
Mike
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LEARN ABOUT CENTOS
osinfo-install-script
OSINFO-INSTALL-SCRIPT.C(1) Virtualization Support OSINFO-INSTALL-SCRIPT.C(1) NAME
osinfo-install-script - generate a script for automated installation SYNOPSIS
osinfo-install-script [OPTIONS...] OS-ID DESCRIPTION
Generate a script suitable for performing an automated installation of "OS-ID". "OS-ID" should be a URI identifying the operating system, or its short ID. By default a script will be generated for a "JEOS" style install. OPTIONS
--profile=NAME Choose the installation script profile. Defaults to "jeos", but can also be "desktop", or a site specific profile name --config=key=value Set the configuration parameter "key" to "value". CONFIGURATION KEYS
The following configuration keys are available "hardware-arch" The hardware architecture "l10n-timezone" The local timezone "l10n-keyboard" The local keyboard layout "l10n-language" The local language "admin-password" The administrator password "user-password" The user password "user-login" The user login name "user-realname" The user real name "user-autologin" Whether to automatically login the user "user-admin" Whether to give the user administrative privileges "reg-product-key" The software registration key "reg-login" The software registration user login "reg-password" The software registration user password EXAMPLE USAGE
The following usage generates a Fedora 16 kickstart script # osinfo-install-script --profile jeos --config l10n-timezone=GMT --config l10n-keyboard=uk --config l10n-language=en_GB --config admin-password=123456 --config user-login=berrange --config user-password=123456 --config user-realname="Daniel P Berrange" fedora16 EXIT STATUS
The exit status will be 0 if an install script is generated, or 1 on error AUTHORS
Daniel P. Berrange <berrange@redhat.com> COPYRIGHT
Copyright (C) 2012 Red Hat, Inc. LICENSE
"osinfo-install-script" is distributed under the termsof the GNU LGPL v2 license. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE libosinfo-0.2.7 2013-04-10 OSINFO-INSTALL-SCRIPT.C(1)