General :: How Is Shell History Specific To Each Tty
Apr 4, 2010
How is shell history specific to each tty? I can't see anything in the history files that would indicate which tty a command was performed on, however if I restart and log in on several ttys, the command order and history is preserved on each. How is this accomplished? This goes for zsh and bash equally.Now for some zsh specific questions.I had a saved webpae, which resulted in a file called doku.php.htm, and a directory called doku.php_files - I could only get zsh to expand the directory. It didnt seem to give me the option to cycle nor did it only complete as much as it could with ambiguity, i.e. to doku.php , so what is this behaviour and where can I read about it?
Secondly I would like to know why zsh interactive shells do not expand the PS1 prompt completely. Whenever I open an xterm or such, the prompt is not the normal PS1 prompt. I read through the manuals and config files, and could see nowhere that staed a different prompt should be used depending on the shell type. Why does this happen, and how can I modify this behavior?Regarding modules, if I install the compat-wifi modules which I assume replace the existing ones, how would I uninstall them? Would I just reinstall the normal kernel modules over them?
Possible Duplicate: Can history files be unified in bash? I have bash running in an ssh session, call this session A. I leave the office, go home, ssh to the same box, call this session B. From session B, I'd like to be able to look at the history of session A.
How can I get/filter history entries in a specific range?I have a large history file and frequently usehistory | grep somecommandNow, my memory is pretty bad and I also want to see what else I did around the time I entered the command.For now I do this:get match, say 4992 somecommand, then I do history | grep 49[0-9][0-9]this is usually good enough, but I would much rather do it more precisely, that is see commands from 4972 to 5012, that is 20 commands before and 20 after. I am wondering if there is an easier way? I suspect, a custom script is in order, but perhaps someone else has done something similar before.
Is it possible to use the keyboard in order to select some text in the terminal windows that is not in the currently edited line? (for example, in order to copy part of previous command output).
Is there a package I can download for Ubuntu that would allow me to type in,for example, cd [tab key] and then it would go through the recent cd commands I've typed in?
I am using squid proxy server for sharing Internet in my internal network. I would like to know that how can I check the browsing history by individual users web surfing history by their IP addresses?
I'm new to the shell scripting. can any one help in creating shell script for matching the content of the specific variable with file. it should remove that line from the file if line is containing same value as variable and keep the other content as it is.i used grep -v for accomplishing the same. But grep will remove the pattern which is similar.For eg. Assume file "test" contain datas :aaffif i used grep -v command for the pattern "a" to this file this will remove content "aa" from the file. I want the pattern only "a" should remove from the file, if it is existing. otherwise it should throw alert content not exists.
i want such a shell script or single line command to delete all the files with extension specified in script i have bash !! ex... delete all files of extension .obj
I used to use CCleaner so I could keep specific cookies from being deleted while I deleted all others. Is there any way I can do this with Ubuntu? Firefox doesn't seem to allow it other than manual deletion which is not as fast an automated as CCleaner made the task.
I want to record an internet radio station starting at 2:00am tomorrow morning. The specific program on the radio station lasts until 6:00am. The command I need to run to record the station is: Code:mplayer http://wjcu.jcu.edu:8001/listen.pls -ao pcm:file=indie_heat_of_the_night.wav -vc dummy -vo nullI'd use cron, but 1. I'm not sure how to and 2. it seems unnecessarily complicated for something that I only want to run once. If cron is the only/easiest solution, I guess I'll just have to resort to that, but I'd rather not.
MACHINE: HP Proliant DL260G5OS: SLES 11 SP1kernel: Linux xserver 2.6.32.12-0.7-default #1 SMP 2010-05-20 11:14:20 +0200 x86_64 x86_64 x86_64 GNU/LinuxIt is used as remote xserver in a LAN.I have configured /usr/lib/restricted/bin/.rbashrc with some environment variables but when the users logon in the system finally is executed $HOME/.bashrc and some environment vars are overwritten.
In my organization, we have a centralized home directory for all users which gets mounted from all the machine where user logs in.Since any XYZ user can login to any of hundreds test machines and run 'sudo su - myusername', hence taking control of my home dir.How do I track who took control of my home dir and deleted its contents.
If someone has done something wrong on a shared linux machine. If i want to find out who is that person or ip from where it is been done what are all the possible ways. 1 possibility I thought was to get the PID of the command and get other details from that PID?
i am working with linux security auditing project on my Servers.I want to find out all the commands executed by individual users.i think using last command,find out the login details.But how can find out the commands executed by each users on all logins except "history".?
I am wondering if I can open a shell or new terminal thing from within the terminal in a unix/linux enviroment. Particularly a commandline only one where there is no GUI. Is this doable? how do I do it?
Is there some way I can track all applications that were opened by a user during a gnome session in ubuntu?Do gdm/gtkwm keep a history of all applications that were opened in some log file?
I was running scripts overnight from the command line (inside Screen on a Linux EC2 instance) and some errors that I was not tracking occurred. I want to "scroll up" or view more of the history in Screen, but I cannot seem to find any commands that will work. I need to see the onscreen output "further up" than I can on my current screen. CTRL + a is supposed to put me into scroll mode inside Screen, but it's not working.
