12-07-2005
AFAIK perl always creates a child.
Is there a reason you can't read the other script and do what it does in the context of the current process? ie., find the chdir and then do what it does in your perl script?
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi all
Recently i had finished a perl script. When i run manually, the script work fine.
But when i wanted to put the script in cron, it didn't get the same output as it run manually. I felt that it only execute the script until certain line then it stop as i see most of the related files didn't... (6 Replies)
Discussion started by: AirWalker83
6 Replies
2. Shell Programming and Scripting
Hi,
I have more than 1 files in the directory. In bash, I can use
cd /work
for x in `ls`
do
:
:
done
to run for each file in the directory.
How about in perl script?
filepath="ABC1"
open(FILE, $filepath) or die "$filepath cannot be opened.";
while(<FILE>) {
: (1 Reply)
Discussion started by: natalie23
1 Replies
3. UNIX for Dummies Questions & Answers
Hi Experts,
I have written simple perl script, which assign the value to variable and print it. Following is the script:
$ cat 3.pl
#!/usr/bin/env ksh
#!/usr/bin/perl
print "Hello World";
$iputlne = 34;
print $iputlne;
The error output is:
$ /usr/bin/env perl 3.pl
Hello World... (9 Replies)
Discussion started by: Amey Joshi
9 Replies
4. Shell Programming and Scripting
Hi,
I have a query about processing and running Perl program at the background.
I have HTML file called Userform.html which accepts input from the user. As soon as input is given the contol goes to get.cgi (get.cgi does some processing and computing tasks).
Actually get .cgi takes more... (0 Replies)
Discussion started by: vanitham
0 Replies
5. Shell Programming and Scripting
Hello,
If I run this command on the server it works.
# dbc "update config set radio_enabled = 0;"
how can I execute the same command in perl. I have defined the dbc path. Can any one please correct the last line.
#!/usr/bin/perl
#database path
$dbc='/opt/bin/psql -Userver... (0 Replies)
Discussion started by: sureshcisco
0 Replies
6. Shell Programming and Scripting
Hello
i want create perl script to connect remotely to another machine and run perl script
please note that the remote script check for different variables remotely and not located on local machine
also i want to know how to send interactive variables
i am trying to make script to... (2 Replies)
Discussion started by: mogabr
2 Replies
7. Shell Programming and Scripting
I have a requirement as follows.
when i pass a date to the perl script, it has to calculate the current date - 8 months and output the date back to the shell script in date format (YYYY-MM-DD).
Current date - 8 months is not constant.. because leap year, and the months jan, mar, may,.... has... (4 Replies)
Discussion started by: kmanivan82
4 Replies
8. Shell Programming and Scripting
Hello,
I'm trying to run "csso" (minify css) in a CGI script from the web panel.
That is not working: Returns error 0;
my $cmd = qq`csso stylesheet.css > stylesheet.min.css`;
system($cmd);
But that is working:
my $cmd = qq`echo 'blabla' > stylesheet.min.css`;
system($cmd);
I'm... (12 Replies)
Discussion started by: madispuk
12 Replies
9. Programming
I have reviewed many examples on-line about running another process (either PERL or shell command or a program), but do not find any usefull for my needs way. (Reviewed and not useful the system(), 'back ticks', exec() and open())
I would like to run another PERL-script from first one, not... (1 Reply)
Discussion started by: alex_5161
1 Replies
10. Shell Programming and Scripting
Linux System having all Perl, Python, PHP (and Ruby) installed
From a Shell script, can call a Perl, Python, PHP (or Ruby ?) file
eg
eg
a Shell script run in a case statement call to run a php file, also Perl or/and Python file???
Like
#!/usr/bin/bash
....
....
case $INPUT_STRING... (1 Reply)
Discussion started by: hoyanet
1 Replies
LEARN ABOUT DEBIAN
bup-margin
bup-margin(1) General Commands Manual bup-margin(1)
NAME
bup-margin - figure out your deduplication safety margin
SYNOPSIS
bup margin [options...]
DESCRIPTION
bup margin iterates through all objects in your bup repository, calculating the largest number of prefix bits shared between any two
entries. This number, n, identifies the longest subset of SHA-1 you could use and still encounter a collision between your object ids.
For example, one system that was tested had a collection of 11 million objects (70 GB), and bup margin returned 45. That means a 46-bit
hash would be sufficient to avoid all collisions among that set of objects; each object in that repository could be uniquely identified by
its first 46 bits.
The number of bits needed seems to increase by about 1 or 2 for every doubling of the number of objects. Since SHA-1 hashes have 160 bits,
that leaves 115 bits of margin. Of course, because SHA-1 hashes are essentially random, it's theoretically possible to use many more bits
with far fewer objects.
If you're paranoid about the possibility of SHA-1 collisions, you can monitor your repository by running bup margin occasionally to see if
you're getting dangerously close to 160 bits.
OPTIONS
--predict
Guess the offset into each index file where a particular object will appear, and report the maximum deviation of the correct answer
from the guess. This is potentially useful for tuning an interpolation search algorithm.
--ignore-midx
don't use .midx files, use only .idx files. This is only really useful when used with --predict.
EXAMPLE
$ bup margin
Reading indexes: 100.00% (1612581/1612581), done.
40
40 matching prefix bits
1.94 bits per doubling
120 bits (61.86 doublings) remaining
4.19338e+18 times larger is possible
Everyone on earth could have 625878182 data sets
like yours, all in one repository, and we would
expect 1 object collision.
$ bup margin --predict
PackIdxList: using 1 index.
Reading indexes: 100.00% (1612581/1612581), done.
915 of 1612581 (0.057%)
SEE ALSO
bup-midx(1), bup-save(1)
BUP
Part of the bup(1) suite.
AUTHORS
Avery Pennarun <apenwarr@gmail.com>.
Bup unknown- bup-margin(1)