thank you i will try this tomorrow when i have access to my workstation again.
but to make this clear, i need the single quotes in the gnuplot command because the flag -e expects a list of "commands" seperated by ";" within quotes (' ')
You've missed the point, not to mention seem confused about how quoting works.
The quotes are for the shell, not gnuplot. They tell a string not to split. GNUplot doesn't care about them. GNUplot doesn't see them, and shouldn't see them.
If you're feeling masochistic, you can do this completely without quotes just by escaping everything:
...and gnuplot will swallow it happily as long as $1 contains no spaces. GNUplot doesn't care. It gets the exact same string once the shell's through with it.
Last edited by Corona688; 10-25-2012 at 12:28 PM..
When trying to escape special character * - it doesn't seem to work. In korn shell trying to store a local variable as follows
sample=test*
echo $sample - gets all the file names starting with test* , instead i want to literally store the value test* into a variable. I tried escaping with \, with... (1 Reply)
When trying to escape special character * - it doesn't seem to work. In korn shell trying to store a local variable as follows
sample=test*
echo $sample - gets all the file names starting with test* , instead i want to literally store the value test* into a variable. I tried escaping with \, with... (3 Replies)
hi there. i have a simple bash script that reads a word from a text file
one at a time, and if a '*' character is encountered, it prints a message.
however it doesn't work as i expected. :o what am i doing wrong here?
thanks very much for the help :)
for word in `cat $DOC`
do
if... (18 Replies)
Hi,
I am using the KSH shell. I am facing a problem of escaping apostrophe('), that is occuring in a variable.
I used the following command, but in vain
item=`echo $item|sed 's/'/\'/g'`
this code replaces the occurance of ' in an xml file to apostrophe(') symbol.
The output of... (2 Replies)
Hi,
I did the below.
$ print "\\n"
$
I am curious, why does \\n give two new lines? I would have thought that the first \ would escape the second \, and so we'd get \n printed. But we didn't.
Any ideas?
Thanks. (7 Replies)
I'm having a strange problem with escaping double-quotes. I have a script that looks like this:
#!/bin/bash
for HOST in `cat $INFILE | grep -v ^#`
do
for VFILER in `some_command`
do
echo " "
echo -e '\E
The problem with ssh command... (3 Replies)
hi,,
i have perl scipt with line :
system('./try.sh $t $d $m');
in shell scipt try.sh i have the line:
echo $1
its not printing value of $t that i hav passed..y is it so..i am running it from apache web server (2 Replies)
Hi folks,
I've list of LDAP records in this format:
cat cmmac.export.tmp2
dn: deviceId=0a92746a54tbmd34b05758900131136a506,ou=devices,ou=customer,ou=nl,o=upc
cmmac: 00:13:11:36:a5:06
dn: deviceId=0a92746a62pbms4662299650015961cfa23,ou=devices,ou=customer,ou=nl,o=upc
cmmac:... (4 Replies)
I have a file which contains a list of paths separated by a new line character.
e.g
/some/path/to/a/file.png
/some/path to/another/file.jpeg
/some path/to yet/another/file
Notice that these paths may contain metacharacters, the spaces for example are also not escaped.
If I wanted... (5 Replies)
Hello,
Ubuntu server 11.10
can anybody help what is problem with my shell script?
#!/bin/bash
#script to find out currently logged on user is root or not.
if ]
then
echo "You are super"
else
echo "You are awesome!"
fi
When I run script, I get following output
./uid: line 3:
I... (4 Replies)
Discussion started by: kaustubh
4 Replies
LEARN ABOUT CENTOS
string::shellquote
ShellQuote(3) User Contributed Perl Documentation ShellQuote(3)NAME
String::ShellQuote - quote strings for passing through the shell
SYNOPSIS
$string = shell_quote @list;
$string = shell_quote_best_effort @list;
$string = shell_comment_quote $string;
DESCRIPTION
This module contains some functions which are useful for quoting strings which are going to pass through the shell or a shell-like object.
shell_quote [string]...
shell_quote quotes strings so they can be passed through the shell. Each string is quoted so that the shell will pass it along as a
single argument and without further interpretation. If no strings are given an empty string is returned.
If any string can't be safely quoted shell_quote will croak.
shell_quote_best_effort [string]...
This is like shell_quote, excpet if the string can't be safely quoted it does the best it can and returns the result, instead of dying.
shell_comment_quote [string]
shell_comment_quote quotes the string so that it can safely be included in a shell-style comment (the current algorithm is that a sharp
character is placed after any newlines in the string).
This routine might be changed to accept multiple string arguments in the future. I haven't done this yet because I'm not sure if the
strings should be joined with blanks ($") or nothing ($,). Cast your vote today! Be sure to justify your answer.
EXAMPLES
$cmd = 'fuser 2>/dev/null ' . shell_quote @files;
@pids = split ' ', `$cmd`;
print CFG "# Configured by: ",
shell_comment_quote($ENV{LOGNAME}), "
";
BUGS
Only Bourne shell quoting is supported. I'd like to add other shells (particularly cmd.exe), but I'm not familiar with them. It would be
a big help if somebody supplied the details.
AUTHOR
Roderick Schertler <roderick@argon.org>
SEE ALSO perl(1).
perl v5.16.3 2010-06-11 ShellQuote(3)