Hi,
I have a log file which is constantly being written to by some process. I need to clear that log file on a daily basis.
The problem is that when I issue this command:
echo "" > logfile.log
the file gets filled with nulls thus increasing the size of the file.
Is there a way to... (2 Replies)
Hi all i hope someone can help me,
in gnome if you right click on trash, you get another menu appear 'Empty Trash'
what i want to do is be able to edit this command so that it secure deletes the trash, where is that command? so i can edit it. thanks in advance for any help,
Dave
(shred -z -u ) (0 Replies)
In our operating procedures, if a workstation has a space problem in the /var filesystem, one of the most frequent case we were told is the size of the /var/adm/wtmp file.
Someone once told me it is dangerous to do this. Is it ?
I cannot say for certain that whomever wrote that procedure is... (2 Replies)
I'm trying to write a script that will empty all contents in a set of files in a directory - without deleting the files themselves.
I know the command (at BASH prompt) is: > (filename)
I'm iterating over all files in the directory and calling the > command thus :
FILES=*.log
for f in... (6 Replies)
Hi
I tried to empty an existing file (bring the size of the file down to 0). When I used “> myFile” or “cat </dev/null >myFile”, when I do a “ls –la”, the file size shows as 0.
I then wrote 540 lines to the file, and then opened it using vi, I see something like this:
"myFile" 540 lines,... (3 Replies)
Hello every body,
Kindly inform me How Do i find out the time I executed a command previously on UNIX Solaris??
To be more specific and more clear about what i want to know is that I want a command the enables me to know the history and which command i run at this history/time.
FYI I used... (5 Replies)
Hi all,
My need is :
1. To know who , when , which command used.
2. Local user should not delete this information.
I mean , with an example , i can say
i have a user user1
i need to give all the following permissions to user1, :
a. A specific directory other than his home... (3 Replies)
Hi Friends
I am new to sed programming , i found that the below code can search for the $ToSearch and Replace it with $ToReplace ( $ToSearch and $ToReplace are my variables in my script )
sed "s/$ToSearch/$ToReplace/" $file > $output
mv $output $file
In testing the script i found that... (3 Replies)
Hi all,
My need is :
1. To know who , when , which command used.
2. Local user should not delete this information.
I mean , with an example , i can say
i have a user user1
i need to give all the following permissions to user1, :
a. A specific directory other than his home... (1 Reply)
I am pleased to announce this new video in 1080 HD for UNIX lovers honoring thirty years of UNIX history spanning from 1969 to 1999 presented in 150 seconds (two and a half minutes) in 1080 HD, celebrating the 50th anniversary of UNIX.
The Great History of UNIX (1969-1999) | 30 Years of UNIX... (8 Replies)
Discussion started by: Neo
8 Replies
LEARN ABOUT MOJAVE
tklib_history
history(n) Provides a history for Entry widgets history(n)
__________________________________________________________________________________________________________________________________________________NAME
history - Provides a history for Entry widgets
SYNOPSIS
package require Tcl 8.4
package require Tk 8.4
package require history ?0.1?
::history::init pathName ?length?
::history::remove pathName
::history::add pathName text
::history::get pathName
::history::clear pathName
::history::configure pathName option ?value?
bell
_________________________________________________________________DESCRIPTION
This package provides a convenient history mechanism for Entry widgets. The history may be accessed with the up and down arrow keys.
::history::init pathName ?length?
Arranges to remember the history of the named Entry widget. An optional length determines the number of history entries to keep.
This may be changed later with ::history::configure. History entries must be added with the ::history::add command before they can
be seen.
::history::remove pathName
Forgets all history entries for the Entry pathName and removes the history bindings.
::history::add pathName text
This command is used to add history entries to an Entry that has previously had ::history::init called on it. This command should be
called from your Entry handler with the contents of the entry (or whatever you wish to add to the history).
::history::get pathName
This command returns a list containing the history entries for the Entry pathName
::history::clear pathName
This command clears the history list for the named Entry.
::history::configure pathName option ?value?
This command queries or sets configuration options. Currently the options recognized are length and alert. Setting the length deter-
mines the number of history entries to keep for the named Entry. Alert specifies the command to run when the user reaches the end of
the history, it defaults to
bell
entry .e
bind .e <Return> [list ProcessEntry %W]
::history::init .e
pack .e
proc ProcessEntry {w} {
set text [$w get]
if {$text == ""} { return }
::history::add $w $text
puts $text
$w delete 0 end
}
KEYWORDS
entry, history
history 0.1 history(n)