01-21-2013
Quote:
print in=$1'. Then to get percentage left=in/leftmax.
Pardon?
Show the input you have, and the output you want.
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi there. Linux newbie and I'm trying to find commands to:
Display number of executable files in a directory that i supply and list them in alphabetical order
Back up all the files in the current irectory to a directory i supply, creating that directory if it's not allready there
Cound... (5 Replies)
Discussion started by: indigoecho
5 Replies
2. Shell Programming and Scripting
Hello,
I used the command
osascript -e 'tell app "Finder" to display dialog "Hey!"'
to display a dialog box..it works fine, it displays a dialog box with 'OK' and 'CANCEL' buttons..i want to get the button returned value how can i do that using terminal command?
is there any command to get... (1 Reply)
Discussion started by: keshav.murthy@r
1 Replies
3. Cybersecurity
Can any one help me with a script, which runs in background and mails me all the commands entered by root on any terminal for every hour. We have multiple people having root access on the server and creating a mess,i just wanted to monitor all the activity of the root. (13 Replies)
Discussion started by: vishnu787
13 Replies
4. Shell Programming and Scripting
hi..
I have a small question...if I have a textfile..let say apple.txt and I want to
1. search for all strings that's 6 characters long, and contains the letters a,b,c,d.
2. search for all words that that begins with "sUn" and ends with "flower"
3. search for all the words beginning with the... (3 Replies)
Discussion started by: Oregano
3 Replies
5. UNIX for Dummies Questions & Answers
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)
Discussion started by: omega666
2 Replies
6. UNIX Desktop Questions & Answers
I'm hoping someone here can help me. I'm computer literate but by no means an expert! I'm simply trying to recover data from my DLink DNS343 NAS mounted on my X86 iMac using SMB. Somehow, in moving to a new computer, I have lost access to some files on the NAS. Just some files are access denied.
... (0 Replies)
Discussion started by: Quantaa
0 Replies
7. Shell Programming and Scripting
Hi,
I am using putty client to connect to my remote Linux server box, and I am connecting through ssh. That system runs bash shell. So, if I use multiple putty terminal, how can I replicate those commands that I ran in other terminals to be available/shared in the current terminal window (i.e)... (1 Reply)
Discussion started by: royalibrahim
1 Replies
8. OS X (Apple)
How do I make terminal autorun commands at start up? For example, I have several windows of terminal, I want one to automatically run 'top' and a couple others autorun 'man' pages.
Is there any way I can do this? (1 Reply)
Discussion started by: randomtypos
1 Replies
9. Shell Programming and Scripting
I frequently use some commands, which I want to save in some file say myregularshell.shthese are the commands I use, I tried saving and executing, but couldn't get the preview of execution, and result is also not coming if I copy same commands and paste it on terminal result is coming
cd go... (2 Replies)
Discussion started by: Akshay Hegde
2 Replies
10. Ubuntu
I've written a program in C, called count_0.1 which is essentially a word count program.
I want to be able to use it as a command in the terminal (by typing in count), like when you type in ls, you don't have to go to a directory, find an executable and type in: ./ls
I've tried:
Adding... (1 Reply)
Discussion started by: usernamer
1 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)