If a single prompt is issued, or if there are several prompts and they all require a "y" response, you can invoke it in a pipeline reading output from the yes utility.
so I tried the obvious
but that did not appear to work.
Ok, ...
I tried posting this in the beginner's forum, but maybe that wasnt the right place.
Does anyone know how to automate CDE X applications from boot? If I use the rc2 folder, the programs start in the background with no X window. I am stumped. any suggestions? (5 Replies)
During the boot-up process *nix runs scripts linked into the runlevel directories rc#.d. What I'm wondering is, how do I control the environment that those scripts see? I need to set a couple environment variables, and I can NOT do it from within the scripts because it poses a maintenance nightmare... (1 Reply)
Ok, a couple weeks ago I was fixing a cron report about perl not happy with 'locale' info (LANG and LC not set). As a result, I was experimenting with setting the correct 'locale' in several areas (like /etc/sysconfig/i18n and who knows where). Somehow after a reboot, as soon as the OS starts... (3 Replies)
Hi,
Is it possible to perform an luupgrade on the active boot environment in Solaris?
I want to perform this on BEAlpha - the disk that has BEOmega will be unavailable whilst performing the upgrade but I still want to install the patches using luupgrade.
Boot Environment Is... (4 Replies)
Hi all,
I'm fairly new to Solaris and am just getting to grips with using LU (Live Upgrade) for OS patching purposes.
worcester#uname -a
SunOS worcester 5.10 Generic_144488-12 sun4v sparc SUNW,SPARC-Enterprise-T5220I have successfully created and patched a new BE (boot environment) using the... (5 Replies)
My OS solarius 5.10 Generic_147148-2 i86
Error: please review new boots environments using options
1. Solution - show me the commands
Partition is full, try to remove some unneeded files,
then try to compress some other unneeded files.
man command creates a temp file under... (0 Replies)
TLDR: Patched a separate boot environment to 11.4. Activated and rebooted the system only to have it boot loop and show 11.3 on the patched boot environment.
Bootloop process: The system went down, came up showing 11.3 then spewed bunch of errors and resetted. SEE BELOW FOR THE FINAL MSG... (1 Reply)
Discussion started by: samthewildone
1 Replies
LEARN ABOUT CENTOS
shell-quote
SHELL-QUOTE(1) User Contributed Perl Documentation SHELL-QUOTE(1)NAME
shell-quote - quote arguments for safe use, unmodified in a shell command
SYNOPSIS
shell-quote [switch]... arg...
DESCRIPTION
shell-quote lets you pass arbitrary strings through the shell so that they won't be changed by the shell. This lets you process commands
or files with embedded white space or shell globbing characters safely. Here are a few examples.
EXAMPLES
ssh preserving args
When running a remote command with ssh, ssh doesn't preserve the separate arguments it receives. It just joins them with spaces and
passes them to "$SHELL -c". This doesn't work as intended:
ssh host touch 'hi there' # fails
It creates 2 files, hi and there. Instead, do this:
cmd=`shell-quote touch 'hi there'`
ssh host "$cmd"
This gives you just 1 file, hi there.
process find output
It's not ordinarily possible to process an arbitrary list of files output by find with a shell script. Anything you put in $IFS to
split up the output could legitimately be in a file's name. Here's how you can do it using shell-quote:
eval set -- `find -type f -print0 | xargs -0 shell-quote --`
debug shell scripts
shell-quote is better than echo for debugging shell scripts.
debug() {
[ -z "$debug" ] || shell-quote "debug:" "$@"
}
With echo you can't tell the difference between "debug 'foo bar'" and "debug foo bar", but with shell-quote you can.
save a command for later
shell-quote can be used to build up a shell command to run later. Say you want the user to be able to give you switches for a command
you're going to run. If you don't want the switches to be re-evaluated by the shell (which is usually a good idea, else there are
things the user can't pass through), you can do something like this:
user_switches=
while [ $# != 0 ]
do
case x$1 in
x--pass-through)
[ $# -gt 1 ] || die "need an argument for $1"
user_switches="$user_switches "`shell-quote -- "$2"`
shift;;
# process other switches
esac
shift
done
# later
eval "shell-quote some-command $user_switches my args"
OPTIONS --debug
Turn debugging on.
--help
Show the usage message and die.
--version
Show the version number and exit.
AVAILABILITY
The code is licensed under the GNU GPL. Check http://www.argon.org/~roderick/ or CPAN for updated versions.
AUTHOR
Roderick Schertler <roderick@argon.org>
perl v5.16.3 2010-06-11 SHELL-QUOTE(1)