Re: [BASH] Tester l'ouverture d'un fichier

[Jean-Baptiste Lièvremont <mithfindel@free.fr>]

Georges Favre a écrit :

> Le Vendredi 19 Août 2005 20:56, Jean-Baptiste Lièvremont a écrit :
>  
>
> > PeterPan31 a écrit :
> >
> >    
>
>  
>
> > > Comment faire pour savoir si un fichier est ouvert ou pas...
> > >
> > >      
>
>  
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> > J'utiliserais lsof personnellement.
> >
> > --
> > mith/J.B
> >
> >    
>
> A titre indicatif chez moi lsof donne :
> 3297 lignes sous root et 
> 2824 lignes sous mon compte ordinaire
>
> il serait judicieux de le piper vers une instruction permettant 
> au minimum d'encadrer le nom du fichier cherché.
>
> A+
>
> --
> Georges Favre
>
>
>
> --------------------------------------------------------------------
> Les listes de diffusion occultes: <URL:http://www.CULTe.org/listes/>
>
>  
Heureusement lsof est pourvu de plein d'options permettant d'affiner - 
et ce même très finement - la recherche:

man lsof:

SYNOPSIS
      lsof  [  -?abChlnNOPRstUvVX  ]  [ -A A ] [ -c c ] [ +c c ] [ +|-d 
d ] [
      +|-D D ] [ +|-f [cfgGn] ] [ -F [f] ] [ -g [s] ] [ -i [i] ] [ -k 
k  ]  [
      +|-L  [l]  ]  [ +|-m m ] [ +|-M ] [ -o [o] ] [ -p s ] [ +|-r [t] 
] [ -S
      [t] ] [ -T [t] ] [ -u s ] [ +|-w ] [ -x [fl] ]  [  -z  [z]  ]  [  
--  ]
      [names]

      +d s     This option causes lsof to search for all  open  
instances  of
               directory  s  and the files and directories it contains 
at its
               top level.  This option does NOT descend the  directory  
tree,
               rooted  at  s.   The  +D  D  option  may  be used to 
request a
               full-descent directory tree search, rooted at directory D.

               Processing of the +d option does  not  follow  symbolic  
links
               within s unless the -x or -x  l option is also 
specified.  Nor
               does it search for open files on file system mount  
points  on
               subdirectories  of  s  unless  the  -x or -x  f option 
is also
               specified.

               Note: the authority of the user of this option  limits  
it  to
               searching  for  files  that the user has permission to 
examine
               with the system stat(2) function.
[snip]
      -u s     This  option  selects  the listing of files for the user 
whose
               login names or user ID numbers are in the 
comma-separated  set
               s  -  e.g.,  ``abe'',  or  ``548,root''.   (There should 
be no
               spaces in the set.)

               Multiple login names or user ID numbers are joined in a 
single
               ORed set before participating in AND option selection.

               If  a login name or user ID is preceded by a `^', it 
becomes a
               negation - i.e., files of processes owned by the login 
name or
               user ID will never be listed.  A negated login name or 
user ID
               selection is neither ANDed nor ORed with other 
selections;  it
               is applied before all other selections and absolutely 
excludes
               the listing of the files of  the  process.   For  
example,  to
               direct  lsof to exclude the listing of files belonging 
to root
               processes, specify ``-u^root'' or ``-u^0''.
[snip]
      names    These  are  path  names  of  specific files to list.  
Symbolic
               links  are  resolved  before  use.   The  first  name  
may  be
               separated from the preceding options with the ``--'' option.


Si avec ça c'est pas possible de vérifier au fichier près je ne sais pas 
ce qu'il faut :)

--
mith/J.B

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