04-10-2015
The only situation I can think of where this might be useful is a shared webhosting environment with ssh access. In this case the admins might want you not to execute any stuff not provided by the hoster.
But to make this work, there must not be one single place on any not noexec'd filesystem where the user has write access, or he can run his programs from there.
Also, as Peasant pointed out, for shell scripts there is a trivial workaround.
This User Gave Thanks to hergp For This Post:
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
#!/bin/ksh
while read line < elig_jobs.txt
do
#Gets the field from the elig_jobs.txt file that has the input location path.
INPUTD=`echo "$line" | cut -c240-289` (ex: $HOME/2005)
echo inputdirectory: $INPUTD (this prints $HOME/2005)
I want it to print /data/user/2005... (4 Replies)
Discussion started by: radhika
4 Replies
2. Solaris
Hi All,
I have this script for linux on cleaning up orphaned folder. But I need to use this on solaris 8/9/10
for user in $(ls | grep -v lost+found) ; do
id $user >/dev/null 2>&1
if ]
then
ls -ld $user
grep $user /etc/passwd
fi
done
Can someone please convert this script? ... (1 Reply)
Discussion started by: itik
1 Replies
3. Shell Programming and Scripting
hello
i want shell script.
as root , i want to untar specific.tar.gz to all home user directory
and after untar , there is 1.txt 2.txt ~~ 26.txt in/public_html/test1/
i want randomly selected 6 text files in 1.txt 2.txt ~26.txt to be renamed
newword1.word , newword2.word , ~~... (8 Replies)
Discussion started by: topic32428285
8 Replies
4. High Performance Computing
Isn't it annoying to leave work hanging to the next day because the regular home pc will never have the grunt of your HPC system at work.
CRAY have answered someone's prayers ..... Cray Inc., The Supercomputer Company - CX1 Deskside Personal Supercomputer
Cheers, Cam :) (3 Replies)
Discussion started by: Cameron
3 Replies
5. Programming
Hi
I need to get the home directory of current user who is running the program, also i need to store the value in a particular variable and pass to the function.
thanks in advance (4 Replies)
Discussion started by: cutechaps
4 Replies
6. Programming
I'm trying to make use of mkdir(char *pathname, S_IRWXU) to create the directories.
but it only creates one directory at a time. so I have to separate the tokens for "/home/blah1/blah2/blah3" as "home blah1 blah2 blah3" using delimiter "/", but it is again hectic to create such directory... (8 Replies)
Discussion started by: platinumedge
8 Replies
7. Solaris
Hi all
i am using solaris 10, i am creating user with
useradd -d/home/user -m -s /bin/sh user
user is created with in the following path
/export/home/user (auto mount)
i need the user to be created like this
(/home as default home directory )
useradd -d /home/user -m -s /bin/sh... (2 Replies)
Discussion started by: kalyankalyan
2 Replies
8. Shell Programming and Scripting
:(
---------- Post updated at 01:51 AM ---------- Previous update was at 01:50 AM ----------
Not working
---------- Post updated at 02:04 AM ---------- Previous update was at 01:51 AM ----------
cp -p /home/* home/exp/*.`date`
i am using this (4 Replies)
Discussion started by: rishiraaz
4 Replies
9. Red Hat
I would like mimic "noexec” and “nosuid” on /tmp security when its a seperate file system BUT I would like to hang /tmp directly off of / "root". Any suggestions would be helpful. (1 Reply)
Discussion started by: trscam
1 Replies
10. Shell Programming and Scripting
Newbie question. I cannot get "set -n" or "set -noexec on" to work on Linux or AIX! According to the man page and what I read online, it should inform me of syntax errors without executing commands in your script.
So, can someone PLEASE explain why this does not work?
... (2 Replies)
Discussion started by: fgoyti
2 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)