|
|
Sponsored Content
Top Forums
Shell Programming and Scripting
Backticks within backticks?
Post 302124778 by Shell_Life on Monday 2nd of July 2007 02:07:50 PM
07-02-2007
|
|
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Can someone explain the difference between backticks and system when
evaluated in these if statements:
sub getDate {
print "start date\n";
if ( system("/bin/date") ) {
print "can't get date\n";
exit(2);
}
print "finish date\n";
}
Returns the following:
start date
Thu... (5 Replies)
Discussion started by: gjkeenan
5 Replies
2. UNIX for Dummies Questions & Answers
Hi,
I would like to change some lines in my mysql-dump, because there a syntax problems with some version of mysql.
I 'd like to change
USE ´someDatabase´;
to
USE someDatabase;
(without backticks) using the sed command in the shell
Thanks & best regards
Bernd (5 Replies)
Discussion started by: bjb
5 Replies
3. Shell Programming and Scripting
I'm always concerned I might be abusing backticks within my scripts. A current script I'm writing has this for example:
stripscriptname=`echo $scriptname | sed 's/\(.*\)\..*/\1/'`
stripsearch=`echo $searchpattern | tr -d ' ,/'`
Both of these variables are set inside the script (in fact,... (2 Replies)
Discussion started by: mglenney
2 Replies
4. Shell Programming and Scripting
Hey all. Just a fast question, what is the technical difference between using back ticks and using xargs to perform a command?
Here's an example
Find /mydir -name *.conf |xargs rm
Vs
Rm 'find /mydir -name *.conf'
Is there a performance hit? I know they do the same thing but which is... (1 Reply)
Discussion started by: msarro
1 Replies
5. Red Hat
Hi everyone. This is a bit of a perl/linux mixed question. I am trying to redirect STDOUT of chsh by using the following line of perl code.
system ("chsh -s /sbin/nologin $testing 1>/dev/null");
This should redirect STDOUT to /dev/null but it won't do that for some odd reason. Any ideas or... (6 Replies)
Discussion started by: austinharris43
6 Replies
6. Shell Programming and Scripting
Input file:
'data_1'
'data_10'
'data1311'
'235data_13'
Desired output:
data_1
data_10
data1311
235data_13
Can I know how to remove back tick"'" in a file?
Many thanks for advice. (3 Replies)
Discussion started by: perl_beginner
3 Replies
7. Shell Programming and Scripting
Hi all,
Here is my code:
my $x = `bash -c \" ls -l filename | awk '{print \$5}'\"`;
print "$x\n";
This will run the first part of the bash script but not the awk command. It therefore gives output of:
-rw-r--r-- 1 root root 13619200 2012-04-25 08:16 filename
I am actually trying to... (0 Replies)
Discussion started by: free2rhyme2k
0 Replies
8. Shell Programming and Scripting
I have been testing a new script and cannot figure out why my `cat spath` will not execute on the remote machine?
sudo ssh -p 22344 -o "PasswordAuthentication no" -o "HostbasedAuthentication yes" -l testuser 192.168.1.6 "find `cat spath` -depth"
cat: spath: No such file or directory
but... (0 Replies)
Discussion started by: metallica1973
0 Replies
9. Shell Programming and Scripting
I'm trying to make a dialog window that prints the output of grep that takes the output of find. Unfortunately my nested backticks don't work.
Here is the dialog window:
dialog --stdout --title "test" --backtitle "test" --msgbox "Test:\n `grep -l "${tablica}" `find $string``" 16 60I think I... (2 Replies)
Discussion started by: Starting_Leaf
2 Replies
10. UNIX for Advanced & Expert Users
But I love my back-ticks - I know exactly how to escape them (after too many years) - I always seem to end unbalanced with ().
However, I shall take the hint. (One more trick for this dog... aka - not too old yet!) :);) (17 Replies)
Discussion started by: MichaelFelt
17 Replies
LEARN ABOUT REDHAT
gldeletelists
GLDELETELISTS(3G) GLDELETELISTS(3G) NAME
glDeleteLists - delete a contiguous group of display lists C SPECIFICATION
void glDeleteLists( GLuint list, GLsizei range ) PARAMETERS
list Specifies the integer name of the first display list to delete. range Specifies the number of display lists to delete. DESCRIPTION
glDeleteLists causes a contiguous group of display lists to be deleted. list is the name of the first display list to be deleted, and range is the number of display lists to delete. All display lists d with list <= d <= list + range - 1 are deleted. All storage locations allocated to the specified display lists are freed, and the names are available for reuse at a later time. Names within the range that do not have an associated display list are ignored. If range is 0, nothing happens. ERRORS
GL_INVALID_VALUE is generated if range is negative. GL_INVALID_OPERATION is generated if glDeleteLists is executed between the execution of glBegin and the corresponding execution of glEnd. SEE ALSO
glCallList(3G), glCallLists(3G), glGenLists(3G), glIsList(3G), glNewList(3G) GLDELETELISTS(3G)