Hello, I have been working on a what I thought was a fairly simple script for installing a software kit on Linux and Unix
I am not new to scripting but am far from being fluent in sh scripting.
any assistance would be appreciated.
I have an odd bug occuring when executing the script.
When... (2 Replies)
Hi, We have some troubles with our HP server (rx4640) running HP-UX 11.31. The server is attached to a JBod cabinet. If the JBod cabinet is powered on and we power on the server after then HP-UX can't find the devices (disks) at the cabinet. Does not help to run an ioscan -fnC disk. But if I power... (3 Replies)
If an executalbe file has several parameters, gdb can not pass parameters correctly. Let us see:
run:
./executablefile1 agr1 arg2 arg3
debug:
gdb executablefile1
run executalbefile1 arg1 arg2 arg3
then argv : executablefile1
argv : executablefile
argv : arg1
... (3 Replies)
I created one file (test.cpp)and complied it and get the executable file(test) and run it.It is giving the out put but when I am trying to debug that executable.I am getting the error --
please tell me the solutions??
Thanks in advance ..... (2 Replies)
Hi all,
(gdb) target remote 192.168.185.196:1389
Remote debugging using 192.168.185.196:1389
warning: Unable to find dynamic linker breakpoint function.
GDB will be unable to debug shared library initializers
and track explicitly loaded dynamic code.
0x2fbd0800 in ?? ()
(gdb) l
1 ... (0 Replies)
Hi All
I know How to attach a process to beubg it .But for my application I am using client as well server.Both are two separate process .Suppose I need to debug both .How to attach both of them together .Or I have to attach them separetly .
Suppose client process id is 1325 and server is... (2 Replies)
I'm sorry if the title is really criptic, but I don't know how to phrase my problem.
I know I can't really ask for a solution, and I normally wouldn't but this is really escaping my abilities.
Antefacts.
I developed a program using the zeromq messaging library.
I got to a point where the... (11 Replies)
Hi Folks,
Before I go off and start checking I'm just wondering if anyone has seen this behaviour before.
# passwd e825390
Changing password for user e825390.
New password:
Retype new password:
Retype new password:
passwd: all authentication tokens updated successfully.
As you can... (2 Replies)
Discussion started by: gull04
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)