Hello,every one!I'm a new comer,and I'm form China.I have learnd UNIX only one year,so don't hesitate to point my error.Thank you…….! :p :p :p (4 Replies)
Hi,
i willbe very much grateful to u if u help me out..
if i simply connect pbx machine to printer by serial port RS232 then we find this view:
But i want to capture this data into database automatically when the pbx is running.The table in database will contain similar to this view inthe... (1 Reply)
helo my sysem is running on redhat 9.
now i want to take data from redhat 9 pc to pen drive.
but when i plug it it is not detected.
can u tell me how to mount pendrive on redhat9.
amit (1 Reply)
Hi,
Could anyone help me in changing a tabular format output to comma seperated file pls in K-sh. Its very urgent.
E.g : username empid
------------------------
sri 123
to
username,empid
sri,123
Thanks,
Hema:confused: (2 Replies)
helo I m creating new user and assigning them to group
using my own binary.
the entry for /etc/passwd file
bhavin:x:2014:109:test:/home/pds_RBAC:/bin/false
now when i access that user using sftp from the another linux pc
for e.g
sftp bhavin@148.147.165.46
passwd:- ******
but... (1 Reply)
I'm trying to change the helo sent from one of my sendmail servers. It is sending out localhost.localdomain and i need it to send , Every time i change it, my sendmail blows up. It wont send new mail and it gives me the error of
Apr 13 17:19:03 localhost sendmail: o3E0J3F2012758: from=root,... (0 Replies)
Hi All,
I was wondering how I can convert each line in an input file where fields are separated by variable width spaces into a CSV file. Below is the scenario what I am looking for.
My Input data in inputfile.txt
19 15657 15685 Sr2dReader 107.88 105.51... (4 Replies)
Hi folks
I have a script I wrote that basically parses a bunch of config and xml files works out were to add in the new content then spits out the data into a new file.
It all works - apart from the xml and config file format in the new file
with XML files the original XML (that ends up in... (2 Replies)
Hi!
I have a pretty complex job - at least for me!
i have two csv-files with meassurement-data:
fileA
...... (2 Replies)
Discussion started by: IMPe
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)