>> uses an existing file if one is available, it does not clear out old data in the file like > does.
If the dates are precisely the same down to the second then I do not see why. If you rerun your code then the first, older, timestamp should be at least a few seconds in the past.
I forgot that it is sending date both before and after computer suspension.
i'm trying to set up my internet connection and i was told i need to edit the file
/etc/ppp/pap-secrets
but i get a permission denied message...why?? (6 Replies)
I just started computer science at UW Milwaukee. When I access the university Solaris system from PuTTY, I get permission denied when I try to access the file I wrote. Now I really have no idea what I'm doing, I just don't understand why I get permission denied in my won directory. Thank You
... (0 Replies)
Hi,
I can not execute a .env file
$ . /Data/oracle/d03/mydbora/8.0.6/MYDB.env
-bash: /Data/oracle/d03/mydbora/8.0.6/MYDB.env: Permission denied
Even if :
-rwxrwxrwx 1 oracle dba 2903 Mar 5 2007 /Data/oracle/d03/mydbora/8.0.6/MYDB.env
Please help.
Many thanks. (1 Reply)
I'll start off by saying that I know very little about Unix - however, I do know that I have a .profile file in my home directory, and that I should be able to invoke it by typing . profile. However, when I do this for ANY .filename, I get ".: Permission denied". I'm pretty sure that there is... (12 Replies)
I would like to copy data from local mechine to cluster. Basically, I typed
scp -r DVD/ acount@cluster:/
it shows Permission denied.
Could anyone please give me a clue to write permission on cluster, please?
The poperty of where on cluster I'd like to put is drwxr-xr-x
Any idea would... (1 Reply)
Hi guys im new to this db
i have a small prob while installing websphereportal6.1i think i was installed succesfully
but the error im getting is while starting server.
check this out
# ./serverStatus.sh -all
Error loading: /usr/wps61/AppServer/java/jre/bin/classic/libjvm.so: cannot... (1 Reply)
I created a user so that when he logs in he will be directed to a menu
/etc/passwd
user1:x:115:1:Support -SysAd:/export/home/user1:/export/home/suppotrmenu/script.sh
However when I logged in remotely from another server by ssh user1@1.1.1.1 , it saysexport/home/suppotrmenu/script.sh:... (4 Replies)
I am using korn shell
When I type in Telnet on cmd line, I get message
"cannot execute"
How can I get permission to execute command ? In which dir is telnet located ? I looked in /usr/bin dir. but its not there
Thanks (1 Reply)
when i run echo "User” > /dev/tty5 why do i get permission denied? :confused: (2 Replies)
Discussion started by: chinababy
2 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)