02-08-2012
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I'm using sed for Windows at a WinNT command prompt. Wrapping the expressions with single quotes doesn't work. I have to use double quotes. Is this the norm for the Windows implementation? (2 Replies)
Discussion started by: daddydojo
2 Replies
2. UNIX for Dummies Questions & Answers
Hi All,
could any expert tell me about writing a parallel processing program using AWK program is possible or not? Any example would be much appreciated...
With Regards / Mysore Ganapati :confused: (5 Replies)
Discussion started by: ganapati
5 Replies
3. UNIX for Dummies Questions & Answers
Hello,
I'm working on unix with grep (GNU grep) 2.5.1. I'm going through some of the newer regex syntax using Regular Expression Reference - Advanced Syntax a guide.
ls -aLl /bin | grep "\(x\)"
Which works, just highlights 'x' where ever, when ever.
I'm trying to to get (?:) to work but... (4 Replies)
Discussion started by: MykC
4 Replies
4. Shell Programming and Scripting
i want to print the statement below using awk,but i am unable to get the quotes
("22345",1,"Thank you");
How can i do this (5 Replies)
Discussion started by: tomjones
5 Replies
5. Shell Programming and Scripting
i'm trying to write a bash script that executes a mysql statement
mysql -sN -e INSERT INTO "$database"."$tableprefix"users (var1, var2,var3) VALUES (123, '1','')
i don't know where to put the quotes
it doesnt work with this one: `
it seems i can only put double quotes around the... (0 Replies)
Discussion started by: vanessafan99
0 Replies
6. Shell Programming and Scripting
I want to execute awk command without quotes.
who am i | awk {'print $2'}
above code should be something like:
who am i | awk {print $2}
Why such weird requirement?
Im assigning command to a variable, hence i need to escape the quotes.
e.g:
x='who am i | awk {\'print $2\'}'
I want... (11 Replies)
Discussion started by: Arun_Linux
11 Replies
7. Shell Programming and Scripting
Original script written on CentOS 6.3 with GNU bash 4.1.2
Destination system is Solaris 9 with GNU bash 2.05 (not changeable by me)
I have a script written on the linux side but now we need to provide a version to another site that "doesn't like linux". I've been going through changing the ] or... (13 Replies)
Discussion started by: oly_r
13 Replies
8. Shell Programming and Scripting
Hi All,
I have input data like follows:
"1234"|"ABC"
"1234"|"CBA"
"1222"|"ZZZ"
I am trying to awk print all records where Col1 = "1234".
Below is the code I have so far:
Var1=1
Var2=1234
awk -F "|" "$ ${Var1} == "\"${Var2}\"" { print; }' inputfile
However when the AWK... (2 Replies)
Discussion started by: RichZR
2 Replies
9. Shell Programming and Scripting
Hello, i had a problem running a script , and after investigation found its all to do with the quotes:
cat file1
line1
val1
val2
line2
val1
val2
line3
val1
val2
awk 'BEGIN {RS="\n\n"; FS="\n";} {print $1 $2}' file1
This gives me the wrong output: (5 Replies)
Discussion started by: andy391791
5 Replies
10. Shell Programming and Scripting
Hello,
I have a 4 core machine.
Here is my initial script
cd /work/
python script.py input.txt output.txt 1 2 3
This script runs for 1.5hrs.
So I read across the web and figured out that you can use GNU parallel to submit multiple jobs using parallel. But I am not sure if I can run... (4 Replies)
Discussion started by: jacobs.smith
4 Replies
LEARN ABOUT DEBIAN
parallel-slurp
PARALLEL-SLURP(1) PARALLEL-SLURP(1)
NAME
parallel-slurp - copy files from listed hosts
SYNOPSIS
parallel-slurp [OPTIONS] -h hosts.txt -L destdir remote local
DESCRIPTION
pssh provides a number of commands for executing against a group of computers, using SSH. It's most useful for operating on clusters of
homogenously-configured hosts.
parallel-slurp gathers specified files from hosts you listed.
OPTIONS
-r --recursive
recusively copy directories (OPTIONAL)
-L --localdir
output directory for remote file copies
-h --hosts
hosts file (each line "host[:port] [user]")
-l --user
username (OPTIONAL)
-p --par
max number of parallel threads (OPTIONAL)
-o --outdir
output directory for stdout files (OPTIONAL)
-e --errdir
output directory for stderr files (OPTIONAL)
-t --timeout
timeout (secs) (-1 = no timeout) per host (OPTIONAL)
-O --options
SSH options (OPTIONAL)
-v --verbose
turn on warning and diagnostic messages (OPTIONAL)
EXAMPLE
An example to copy /home/irb2/foo.txt from each host. Files gathered will be stored in /tmp/outdir/hostname/foo.txt.
# prallel-slurp -h hosts.txt -L /tmp/outdir -l irb2
/home/irb2/foo.txt foo.txt
ENVIRONMENT
All four programs take similar sets of options. All of these options can be set using the following environment variables:
o PSSH_HOSTS
o PSSH_USER
o PSSH_PAR
o PSSH_OUTDIR
o PSSH_VERBOSE
o PSSH_OPTIONS
SEE ALSO
parallel-ssh(1), parallel-scp(1), parallel-nuke(1), parallel-rsync(1), ssh(1)
AUTHOR
Brent N. Chun <bnc@theether.org>
COPYING
Copyright: 2003, 2004, 2005, 2006, 2007 Brent N. Chun
NOTES
1. bnc@theether.org
mailto:bnc@theether.org
03/30/2009 PARALLEL-SLURP(1)