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Full Discussion: parse a file and fill an array with it
Top Forums Shell Programming and Scripting parse a file and fill an array with it Post 302192623 by jbmukund on Wednesday 7th of May 2008 12:51:52 PM
Old 05-07-2008
RE: parse a file and fill an array with it
Hi Franklin,

Thanks you, I got it working.
But, I want these details in a array with extra spaces removed.

However, I tried by adding a ssh command to it and does not work
When I do this the loop gets restricted to a single iteration. ?I did not see the second iteration happening. and it happens only the case of ssh.

Instead local commands works fine.

awk '{for(i=2;i<=NF;i++){print $i}}' "a" |
while read mach; do
#do your stuff here
echo "hello $mach"
ssh root@rna4 uname -n # <----
echo $?
done

Regards,
Mukund Jampala


Quote:
Originally Posted by Franklin52
Like Annihilannic mentioned, I had a typo in the code, and the loop begins with the second field after the "=" so I assume this is the first machine name. Maybe it should begins with the 3th field, try it out.

Code:
awk '{for(i=2;i<=NF;i++){print $i}}' "config.file" |
while read mach; do
  #do your stuff here
  echo "$mach"
done

Regards
 

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LEARN ABOUT DEBIAN

go-show-paths-to-root

GO-SHOW-PATHS-TO-ROOT(1p)				User Contributed Perl Documentation				 GO-SHOW-PATHS-TO-ROOT(1p)

NAME

       go-show-paths-to-root.pl - shows all possible paths from a term to the top

SYNOPSIS

	 go-show-paths-to-root.pl -id GO:0008021 ontology/gene_ontology.obo
	 go-show-paths-to-root.pl -names -id GO:0008021 ontology/gene_ontology.obo

DESCRIPTION

       traverses DAG showing all paths (terms and intervening relationships) to the root

       This script is purely file based; it needs to parse the ontology each time

       Subsequent parses can be speeded up using the use_cache option

       If you wish to use the GO MySQL db, see the script go-db-show-paths-to-root.pl in the go-db-perl distribution

ARGUMENTS

       -e ERRFILE

       writes parse errors in XML - defaults to STDERR (there should be no parse errors in well formed files)

       -p FORMAT

       determines which parser to use; if left unspecified, will make a guess based on file suffix. See below for formats

   -use_cache
       If this switch is specified, then caching mode is turned on.

       With caching mode, the first time you parse a file, then an additional file will be exported in a special format that is fast to parse.
       This file will have the same filename as the original file, except it will have the ".cache" suffix.

       The next time you parse the file, this program will automatically check for the existence of the ".cache" file. If it exists, and is more
       recent than the file you specified, this is parsed instead. If it does not exist, it is rebuilt.

   DOCUMENTATION
       <http://www.godatabase.org/dev>

perl v5.14.2							    2010-05-12						 GO-SHOW-PATHS-TO-ROOT(1p)
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