05-19-2006
9 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
once I run the debug command for a program, I can't get back to the prompt afterwards. I'm sure there is some escape sequence that will get me back there, but I don't know what it is. Anyone know?--thanks--AJ (3 Replies)
Discussion started by: AJA
3 Replies
2. UNIX for Dummies Questions & Answers
How to write perl substitute command in shell script without invoking a perl script file seperately.
for ex:
shell script to relace IT with CSC in a file using perl substitute command. (3 Replies)
Discussion started by: param_it
3 Replies
3. Shell Programming and Scripting
I installed Net::sftp on a solaris 8 server and I am able to successfully transfer files to the remote server. I am running the command out of a script with debug=1 on so I can see the verbose output.
The last two lines of the debug output show it couldn't fsetstat, but I don't know what that... (2 Replies)
Discussion started by: csgonan
2 Replies
4. Shell Programming and Scripting
HI All,
NET::FTP->new($server, DEBUG=>1);
I need to get all the Debug Messages in an array or a file....
Please suggest!! (0 Replies)
Discussion started by: angad.makkar
0 Replies
5. Windows & DOS: Issues & Discussions
I originally posted this to a different forum (I am a new Perl user) and realized the error so I will ask here.
I am on a WindowsXP machine trying to run perl and gawk scripts from the command line. I have perl and gawk installed and environment set to C:\perl\bin and cannot get a script to... (2 Replies)
Discussion started by: 10000springs
2 Replies
6. Shell Programming and Scripting
Is there a way to see or print a sub code?
Sometime a sub could be already defined, but in the debug mode (so, interactively) it could be already out of screen.
So, I would think about a way to check if the sub is defined (just 'defined' is not a problem) and how it is defined.
Also, if... (4 Replies)
Discussion started by: alex_5161
4 Replies
7. Shell Programming and Scripting
I have a shell program which calls a perl program.
I am running the shell program with command;
$ ksh -x <prog_name>
Inside the shell program, I am calling perl with warnings.
I want to capture the entire output as it comes on screen.
The command I tried is:
$ ksh -x... (1 Reply)
Discussion started by: som.nitk
1 Replies
8. Shell Programming and Scripting
Hi,
I am trying to get squid up and running using a redirector process, and every time I try to load a web page, squid fails miserably.
Can some one with perl and squid knowledge take a look at these codes and tell if something is wrong here.
#!/usr/bin/perl
#
$| = 1;
@endings = qw/... (0 Replies)
Discussion started by: jamie_123
0 Replies
9. Shell Programming and Scripting
I am new to perl and want to get a little better understanding of debugging code in perl. I have a perl script that has questions to be answered like:
he following PERL modules are recommended:
Crypt::DES
Crypt::PasswdMD5
IO::Pty
Net::Write::Layer2
String::CRC32
Attempt to install... (0 Replies)
Discussion started by: metallica1973
0 Replies
LEARN ABOUT DEBIAN
shell-quote
SHELL-QUOTE(1p) User Contributed Perl Documentation SHELL-QUOTE(1p)
NAME
shell-quote - quote arguments for safe use, unmodified in a shell command
SYNOPSIS
shell-quote [switch]... arg...
DESCRIPTION
shell-quote lets you pass arbitrary strings through the shell so that they won't be changed by the shell. This lets you process commands
or files with embedded white space or shell globbing characters safely. Here are a few examples.
EXAMPLES
ssh preserving args
When running a remote command with ssh, ssh doesn't preserve the separate arguments it receives. It just joins them with spaces and
passes them to "$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)