Just hoping someone can help me out. I am looking for what should be simple commands to enter for this information:
List of all Unix users (is this etc/passwd?)
List of all users' access capabilities (is this etc/group?)
Password settings (e.g., password expiration interval, minimum password... (2 Replies)
Hi all,
I have PLESK to manage my virtual dedicated server. The most recent version left a favicon.ico file in all my domains and subdomains. I want to delete them without having to go into each individual folder.
So I'd like to remove favicon.ico from every subfolder of /var/www/vhosts/
... (4 Replies)
Building software in most languages is a pain. Remember ant build.xml, maven2 pom files, and multi-level makefiles?
Python has a simple solution for building modules, applications, and extensions called distutils. Disutils comes as part of the Python distribution so there are no other packages... (0 Replies)
how can i merge follwoing process to one...
tail +5 rawdata_AAA_1.txt_$$ | grep -v "^$" >> rawdata_AAA_2.txt_$$ For discarding first 5 rows and deleting null rows
awk '!/^ /{if(a) print a; a=$0}/^ /{print a}' rawdata_AAA_2.txt >> rawdata_AAA_3.txt For merging record if it split into 2 rows... (8 Replies)
i am at home with a windows xp home, and i am using putty terminal to access my linux mathlab account, my task is to compile and run a C program, called a.c,
i used
gcc -Wall -g -o mycode a.c
to compile it into a mycode file
now when i want to run it, i was told i had to use
$... (2 Replies)
I have input like
Unload: 2610000
225 2198
374 315
420 1149
57 2611
595 662
374 820
130 2938
486 2483
397 760
using these values, i need to divide first number with second number, means 225/2198, and using the value i'm trying to sort it. After sort i need first and "Unload" values,... (2 Replies)
Hey guys, I need help with simple unix commands. I'm a newbie to Unix and don't know these commands. Any help is appreciated.
1. Logon to Linux.
2. Create a directory "Unix" under your home directory.
Command(s): ………………………………………….
3. Create four... (1 Reply)
Hey guys, I need help with simple unix commands. I'm a newbie to Unix and don't know these commands. Any help is appreciated.
1. Logon to Linux.
2. Create a directory "Unix" under your home directory.
Command(s): ………………………………………….
3. Create four... (1 Reply)
I am extracting two pieces of information from the following file: /proc/cpuinfo, that I need to merge into one report.
The first command:
grep -i processor /proc/cpuinfo | awk '{print $1$2,$3}'
yields:
processor: 0
processor: 1
processor: 2
processor: 3
The second command:
grep -i... (4 Replies)
Discussion started by: jamarsh
4 Replies
LEARN ABOUT DEBIAN
shell-quote
SHELL-QUOTE(1p) User Contributed Perl Documentation SHELL-QUOTE(1p)NAME
shell-quote - quote arguments for safe use, unmodified in a shell command
SYNOPSIS
shell-quote [switch]... arg...
DESCRIPTION
shell-quote lets you pass arbitrary strings through the shell so that they won't be changed by the shell. This lets you process commands
or files with embedded white space or shell globbing characters safely. Here are a few examples.
EXAMPLES
ssh preserving args
When running a remote command with ssh, ssh doesn't preserve the separate arguments it receives. It just joins them with spaces and
passes them to "$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)