some one ran rm -rf .bash_history on my Linux server(SUSE),I can see this command being run in current history, but I want the OLD history as well,can I recover the old history back.
Last edited by Ankit Bansal; 07-01-2013 at 08:53 AM..
Question for all sysadmins.
How do you keep track of what commands each user uses on his account. I thought an easy way is to monitor .bash_history, however those files can be "edited" by the user.
Is there a permission combination that will allow the shell to record to it but yet they can't edit... (12 Replies)
During the course of the session before I logout I see some of the commands listed from my previous session but not from my current session and after I logout and log back in I see the commands which I ran before logging out.
Does the .bash_history stay in the buffer or someplace else then?
... (2 Replies)
Dear All,
I am creating users on our servers. the .bash_history supposed to store all the commands entered by the user. My question is, how can I prevent the user himself from editing or viewing this file?
I have tried chaning the owner of the .bash_history to be the root user but... (5 Replies)
Hi Experts,
I know my question would be strange but i need to understand how the .bash_history file is logging user actions (the mechanism) and if possible modify it to include also the date/time of every action done by the user.
Sample file:
# more .bash_history
ssh <IP address> -l axadmin... (3 Replies)
Hi - user commands are written in . bash_history of that user when he logs out. my bash_history file shows. not sure what that number means
#1329618972
ls -la
#1329618978
ls
#1329618980
ls -la
my bash_profile looks like this
PATH=$PATH:$HOME/bin
export PATH
export... (3 Replies)
Hi would like to ask if there is anyway to display .bash_history with timestamp using shell script?
i know that you should use history command with HISTTIMEFORMAT="%d/%m/%y %T " to display it in terminal but it does not work when i use it on shell script. It seem that you can't run history... (1 Reply)
Consider a situation where in you have used rm command wrongly in a particular directory say
rm -r *
and we don't have any backup of those files which ever are deleted.
NOTE: I'm not facing situation like this but wanted to know what all options are available for such a situation.
is... (5 Replies)
I am using the bash shell.
When I view my recent command history using the "history" command from the prompt, it only shows me the commands starting at #928.
The commands I need are earlier than that, but I can't figure out how to make the other 927 display.
They are in my .bash_history... (1 Reply)
Discussion started by: Twinklefingers
1 Replies
LEARN ABOUT MINIX
ppmtosixel
ppmtosixel(1) General Commands Manual ppmtosixel(1)NAME
ppmtosixel - convert a portable pixmap into DEC sixel format
SYNOPSIS
ppmtosixel [-raw] [-margin] [ppmfile]
DESCRIPTION
Reads a portable pixmap as input. Produces sixel commands (SIX) as output. The output is formatted for color printing, e.g. for a DEC
LJ250 color inkjet printer.
If RGB values from the PPM file do not have maxval=100, the RGB values are rescaled. A printer control header and a color assignment table
begin the SIX file. Image data is written in a compressed format by default. A printer control footer ends the image file.
OPTIONS -raw If specified, each pixel will be explicitly described in the image file. If -raw is not specified, output will default to com-
pressed format in which identical adjacent pixels are replaced by "repeat pixel" commands. A raw file is often an order of magni-
tude larger than a compressed file and prints much slower.
-margin
If -margin is not specified, the image will be start at the left margin (of the window, paper, or whatever). If -margin is speci-
fied, a 1.5 inch left margin will offset the image.
PRINTING
Generally, sixel files must reach the printer unfiltered. Use the lpr -x option or cat filename > /dev/tty0?.
BUGS
Upon rescaling, truncation of the least significant bits of RGB values may result in poor color conversion. If the original PPM maxval was
greater than 100, rescaling also reduces the image depth. While the actual RGB values from the ppm file are more or less retained, the
color palette of the LJ250 may not match the colors on your screen. This seems to be a printer limitation.
SEE ALSO ppm(5)AUTHOR
Copyright (C) 1991 by Rick Vinci.
26 April 1991 ppmtosixel(1)