Hi all,
why "vi" acts differently is single user mode?
Does anyone help ?
I am using "x" to delete and it keeps messing up.
Please help
Thanks (2 Replies)
Hi all,
Well back at work and back to crashing systems again :-)
Does anyone know where I can find some decent information on single user mode? I need to be able to fix a few things. Don't know if it's possible in single user mode but I need to fix the "etc/vfstab" mainly I re-wrote it to... (2 Replies)
Hi All,
I have AIX 5.1 & I forgot the root password. I find out the solution is to boot in single-mode and remove the root password from the /etc/passwd file. My question is how to boot in single-mode? Also is there any password required when booting in this mode? (9 Replies)
Hi All,
I used to have my suse linux(VM) server in graphic mode but not anymore since morning. I cant rolback since i loose somuch work. Any idea how to it back to normal. Thanks (6 Replies)
:confused:
when i tried to look the status of DNS-client, it is in maintenance mode.....
Please tell me how to bring it back to online mode...PLEASE TELL ME STEP BY STEP.... PLEASE...
:wall: (2 Replies)
Hi all
I am new on sun OS. I have have little experience on linux.
The Story start from this point:
I want to put some script on start-up the terminal, but I cant do that. my shell was sh and I tried so much to find way to do that. at last someone said to me change your shell to bash. I ask how... (4 Replies)
Dear All
I am trying to install my os as :
ok>boot cdrom - install
but receiving the following :
"IDprom checksum error
getexecname() failed
/sbin/rcS /etc/vfstab cannot create
INIT:failed write utmpx enrty
INIT:single user mode
INIT:execle of /etc/sulogin failed
Enter run level"
Can you... (6 Replies)
is there a way for my C++ application to find out which mode the hpux OS is running in?
standard mode or trusted mode. (3 Replies)
Discussion started by: einsteinBrain
3 Replies
LEARN ABOUT DEBIAN
shell-quote
SHELL-QUOTE(1p) User Contributed Perl Documentation SHELL-QUOTE(1p)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 v5.8.4 2005-05-03 SHELL-QUOTE(1p)