If nothing's sorted and it has to produce output in arbitrary order, there's no efficient solution, since there's no way but sheer brute force for finding the records.
Last edited by Corona688; 12-02-2010 at 01:11 PM..
Reason: ${1} should be ${N}
I have a script I use on my web server (Apache2). I am changing to Lighttpd and need to make a few changes.
This is what I use on my apache server
#!/bin/bash
# accepts 3 parameters: <domain name> <user name> <XXXXXXXX>
# domain name is without www (just domain.com)
# username would be... (3 Replies)
I am completely new to bash scripting and now need to write a bash script that would parse a XML file and take out values from specific tags.
I tried using xsltproc, xml_grep commands. But the issue is that the XML i am trying to parse is not UTF 8. so those commands are unable to parse my XML's... (4 Replies)
Hi Guys,
I am new to unix scripting and I am tasked to parse through a CSV file delimited by #.
Sample:
sample.csv
H#A#B#C
D#A#B#C
T#A#B#C
H = Header
D = Detail Record
T = Tail
What I need is to read the file and parse through it to get the columns.
I have no idea on how... (8 Replies)
Raw Results:
results|192.168.2|192.168.2.1|general/udp|10287|Security Note|For your information, here is the traceroute from 192.168.2.24 to 192.168.2.1 : \n192.168.2.24\n192.168.2.1\n\n
results|192.168.2|192.168.2.1|ssh (22/tcp)|22964|Security Note|An SSH server is running on this port.\n... (2 Replies)
hi to all.
im a newbie in unix shell scripts. i want to make a simple unix shell script using the bash shell that asks a user to press any key after a series of commands, or an x if he wishes to exit. here's a sample script that i made:
#!/usr/bin/bash
pause(){
/usr/bin/echo "\t\t Press... (3 Replies)
I would create a bash script than parse like this:
test.sh -p (protocol) -i (address) -d (directory)
I need retrive the value after -p for example...
understand???
I hope...
thanks (6 Replies)
Hi All,
Hope all you are doing good! Need your help. I have an XML file which needs to be converted CSV file. I am not an expert of awk/sed so your help is highly appreciated!!
XML file looks like this:
<l:event dateTime="2013-03-13 07:15:54.713" layerName="OSB" processName="ABC"... (2 Replies)
All,
Have a weird issue where i need to generate a report from GitHub monthly detailing user accounts and the last time they logged in. I'm using a windows box to do this (work issued) and would like to know if anyone has any experience scripting for GitAPI using windows / cygwin / powershell?... (9 Replies)
Hi All,
I need to write a bash script that will parse some perforce log files, the log files will contain user login information, the script would need to pare the log, and check who logs in, and if the user is a superadmin, then the script will check the ip address to see which server the... (4 Replies)
OK,
I know function has to be defined first - in sequence - before it can be used.
So the script has to be build "bottoms -up style, if you pardon my expression.
I am running into a problem reusing function and breaking the sequence.
It would be nice to be able to see the function... (10 Replies)
Discussion started by: annacreek
10 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)