It appears on solaris 8 I have extended set here --> /usr/xpg4/bin/ls
These are the X/Open versions of some Unix programs, but the filename generation/globbing
is a shell feature, the ls program doesn't see the glob, it sees the expanded list of filenames.
Quote:
But I am not sure where in your reg.exp you are telling it to act only on folder names(column 9).
I'm just passing the filenames to the ls program, ls operates directly on filenames, no need to specify any column
(if I understand the question correctly ...)
Quote:
Also why can't we tell extended globber to understand something like
this -->
And you don't even need the -1 option in this context.
P.S. Actually, if you don't need the modification time info, you don't need the external commands ls and grep either, with ksh (or bash and extglob enabled) you could simply:
shopt -s extglob
ls -lt !(*[!1-9]*) # This is trying to list contents under the folders it is finding. I wanted only folder names
Code:
ls -lt <-> # This is trying to list contents under the folders it is finding. I wanted only folder names
Above commands would have listed only folders that are matching if it can get something like this working
Quote:
ls -lt | grep !(*[!1-9]*)
Regarding why I started using awk instead of egrep, I also needed to filter folders based on thier owner. Here is what I have so far working.. I am trying to delete lot of old folders under /var/tmp
Ideally I would want to use parameter for this also -->
Quote:
^[1-9]+$|sjs*|JCE*
. But I could not get it to work.
Code:
VAR_USERS='userA|userB|userC' # Folders owned by only these users.
VAR_FILTER='^[1-9]+$|sjs*|JCE*' # (Folders with only Numbers) OR (that start with 'sjs') OR (that start with 'JCE')
/usr/xpg4/bin/awk -v vUsers="$VAR_USERS" -v vFilter="$VAR_FILTER" '$3 ~ vUsers && $9 ~ vFilter {print $9}'
I am all for not using expensive awk,, instead get this done by printf or bash's extglob or egrep( but I want to use parameters for all my search strings,,).
Last edited by kchinnam; 09-02-2010 at 11:22 PM..
Reason: formatting
shopt -s extglob
ls -lt !(*[!1-9]*) # This is trying to list contents under the folders it is finding. I wanted only folder names
Code:
ls -lt <-> # This is trying to list contents under the folders it is finding. I wanted only folder names
Above commands would have listed only folders that are matching if it can get something like this working
So just add -d option to ls:
Code:
ls -ltd ...
Quote:
Regarding why I started using awk instead of egrep, I also needed to filter folders based on thier owner. Here is what I have so far working.. I am trying to delete lot of old folders under /var/tmp
Ideally I would want to use parameter for this also --> . But I could not get it to work.
Code:
VAR_USERS='userA|userB|userC' # Folders owned by only these users.
VAR_FILTER='^[1-9]+$|sjs*|JCE*' # (Folders with only Numbers) OR (that start with 'sjs') OR (that start with 'JCE')
/usr/xpg4/bin/awk -v vUsers="$VAR_USERS" -v vFilter="$VAR_FILTER" '$3 ~ vUsers && $9 ~ vFilter {print $9}'
I am all for not using expensive awk,, instead get this done by printf or bash's extglob or egrep
( but I want to use parameters for all my search strings,,).
Well, as it often happens, you begin with a simple question and you end up with a completely different requirement.
You do use parameters for all your search strings. Could you please elaborate further?
VAR_USERS='userA|userB|userC' # Folders owned by only these users.
/usr/xpg4/bin/awk -v vUsers="$VAR_USERS" '$3 ~ vUsers && $9 ~ /^[1-9]+$|sjs*|JCE*/ {print $9}'
This is not working -->
Code:
VAR_USERS='userA|userB|userC' # Folders owned by only these users.
VAR_FILTER='^[1-9]+$|sjs*|JCE*' # (Folders with only Numbers) OR (that start with 'sjs') OR (that start with 'JCE')
/usr/xpg4/bin/awk -v vUsers="$VAR_USERS" -v vFilter="$VAR_FILTER" '$3 ~ vUsers && $9 ~ vFilter {print $9}'
How can I pass regular expression as a parameter VAR_FILTER ?
Last edited by kchinnam; 09-03-2010 at 12:12 PM..
Reason: formatting
I'm having an issue with bash read input when using a case statement.
The script halts and doesn't read the input on the first loop. if I hit enter then the scripts starts to respond as expected. Need some help here.
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