General :: Bash Command History Update Before Execution Of Command

Jun 7, 2010

Bash's command history is great, especially it is useful when adding the history -a command to the COMMAND_PROMPT.However, I'm wondering if there is a way to log the commands to a file as soon as the Return key is pressed, e.g. before starting the command and not on completion of the command (using the COMMAND_PROMPT option would save the command once the prompt is there again).

I read about auditing programs like snoopy and session recorder like script but I thought they're already too complex for the simple question I have. I guess that deactivating that script logs all the output of the command would lead already in the right direction but isn't there a quicker way to solve that probelm?

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General :: Command To Delete Bash Command History?

May 31, 2010

What's the command to delete bash command history?

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General :: SSH Command Mode - Flow Of Execution Returns To Bash Shell

Aug 13, 2009

I want to use ssh to execute a command and to wait endlessly to log everything (in file) that comes as a stream of the connected server. But unfortunately, in the manual its written "If command is specified, it is executed on the remote host instead of a login shell"

So what happens is that when I specify my command:
ssh user@server "my_command"

It executed the command and the flow of execution returns to bash shell. So basically my session ends right after the command is executed. This happens only in case I specify command in the command line. If I login into ssh manually and then type "my_command", then the session doesn't end. I want the ssh not to exit, because after "my_command" executes, I want to capture everything in the session.

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General :: Remote Command Execution Via SSH And Newgrp Command?

May 9, 2011

Up until now I've been using plink to remotely compile a project I'm working on. But recently the administrator from the remote server updated the distribution and messed up some configurations. My project has a lot of scripts written for tc shell (tcsh), and now the default shell is bash. There is no way to change this. Another problem is that now I need to run newgrp to change my default user group.

So... to work around this problem I've changed my .bashrc to run newgrp and then tcsh. If I do a normal connection using SSH, everything works as expected, but when using plink, or SSH to remotely execute commands, the shell gets stuck on the newgrp command. I think it's because both applications need a return value from newgrp to send the command I need to execute. Remotely running scripts that call a shell also get stuck like newgrp (newgrp also opens a new shell and that's why it gets stuck) my .bashrc is as follows:

Code:

user_grp=`id -g`
if [ $user_grp != 4919 ]; then
newgrp new_group_id
else

[code]....

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General :: Only Execute 2nd Command On Successufl Execution Of 1st Command?

Aug 19, 2009

I have a script which builds a project and then runs junit tests. However, if the build fails, the junit tests fail with the same error message.Therefore the command which runs the junit tests should only be executed if the build was successful.

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Software :: Bash Command History Log / How To Write It Continuous?

Apr 14, 2011

I've been looking for how to set this up in bash with no luck so far. I can change what file the history log is written to, and how much history is saved. But it only writes the saved part when bash exits. Instead, I'd like to have bash write that file continuously as each command is entered (and maybe also do an fsync(2) to flush it to disk). That way I can see the command I crashed the box with Anyone know the magical incantation for that?

But there appears to be nothing that I can find there, in the man page, or other searches, that suggest it even can do continuous.

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General :: Use 'history' Command To Fire Last Run Command?

Oct 14, 2010

How do I use the "history" command to fire the last run command?

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Software :: Command To Get History Command Lines And Time In SUSE?

Jun 23, 2009

I have to trace back what command and when it is used for the last 3 months. It is quite urgent as I have trouble with the system configuration.

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Programming :: Calling Command From History Using Variable Like !$command?

Nov 19, 2008

suppose i store the history number of a command say :

1004 cat file

Then now i want to run it like : !1004 but by using a variable.

command=1004
!$command

i am getting errors like :

command=1004command

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General :: Repeating The Command After One Execution?

Oct 13, 2010

I have seen command like $rm aa dd cc bb ee then something like $ >> zz // it removes zz also Where aa dd cc bb ee zz are the files in my directory. Do not know exactly.

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General :: What Does This Cryptic Bash Command Mean - Why Command Crashes

Mar 20, 2011

Possible Duplicate: What does this cryptic bash command mean? Why this command crashes Linux? :(){ :|:& };:

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General :: Use "history" Command To Fire Last Run Command?

Oct 7, 2010

How do I use the "history" command to fire the last run command?

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General :: Find Out PID Of A Command Which Is In History?

Jun 20, 2011

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?

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General :: Can Not Use Command 'history' In Fedora13?

Nov 1, 2010

Just as the subject,I didn't find a appropriate answer with google. Is there any command to replace it?

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General :: Command History Alternate Location

Nov 23, 2010

I am just wondering is there any other altrenate location which saves the history command logs other that bash_history file.

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General :: Check The User Command History In Unix?

Aug 19, 2010

I know the 'history' command give me a list of the commands I have typed into the Unix terminal.

How do I see the command history for all of the users currently logged onto the system?

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General :: Command Line - How To View More Of My History In Screen

Jun 28, 2011

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.

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General :: Administration - View Command History Of Another User

Jul 11, 2011

Can anybody show me how to view command history of another user? I am an admin on my machine. I can see normal history by viewing /home/user_name/.bash_history but i can't see commands of that "user_name" when they were doing sudo. Is there a way to view all command executed by one user?

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General :: Use History Command To Show The Time Stamp?

Apr 13, 2011

I want to use history command to show the time stamp, user id, ip address, command logged

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General :: History With Date And Executed File/command?

Feb 17, 2011

what is the tool to get the history inclduing the user name,command time and from which file/folder the command is executed.

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General :: Histroy Command- Not Showing All The History Files?

May 22, 2010

while using history command i can able to see only last twenty histroy commands.

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Ubuntu :: Lpr Command- And Man -t (bash Command - Print Both Sides Of The Paper Using A Printer?

Mar 29, 2010

I just recently learned about the wonderful little lpr command- and using man -t (bash command) to beautifully print man pages for reference- but is there a way to print both sides of the paper using a printer so equipped?

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Ubuntu :: BASH: Execute Next Command Until Another Command Succeed?

Mar 19, 2010

I have a big bash script ,its goal is to download movie one by one . But I often get into a problem: if this script is executed in cron,it often does not completely download the movie.I often find the movies it downloaded are several KB while the movie is actually 20MB.So I think it is because it did not wait for finishing one task ,and jump to download another.So I want to know ,is there a way to force the bash script to wait until one movie downloaded completely and then start to download another movie ?

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General :: Write A Literal Bash Command In A Bash File?

Nov 29, 2010

I create a bash script that writes another bash file. But in the generated bash file I want to write a bash command in the file and not executing it.Here's my bash file:

Code:
#!/bin/bash
cat > ~/generateGridmix2data.sh << END

[code]...

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General :: Command To Check The Java Version: Java -versionand Got :bash :java: Command Not Found?

Jul 26, 2010

I've just installed java (jre-6u21-linux-i586.bin) on Red Hat 4.4 AS and issued this command to check the java version: java -versionand got :bash :java: command not found

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Ubuntu Servers :: Delay Before Command Execution?

Jan 8, 2010

Problem started after installing a new firewall in my network. originally after installing the firewall there would be a 10 second delay after entering a command before it was processed, the command would be executed however there would be an error, i forget what it said, something about not being able to resolve my domain name (and it would give my domain name). i realized this was a problem with my NAT, so i configured DNS forwarding on my firewall so that any attempt to access my server using my domain name from inside the network would point back at my server. after setting up the DNS forwarding i no longer receive the error about my domain name being unreachable, however there is approximately a 30s delay between entering a command and its execution.

the problem is hardly critical i do not see any more serious problems, it is just a pain to do any work when every time i try to do something i have to wait for it to execute.

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Ubuntu :: Wait Command After Execution In Terminal?

Mar 14, 2011

How do I create a command to launch a program and then have the terminal wait for a specified time and then move on to the next command?I'm wanting to create a startup script, and I need program B to wait until program A has finished loading up.

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Software :: Escape Command For Remote Ssh Execution?

Jun 14, 2010

I have the following command:

Code:

(systool -c fc_host -v && systool -c fc_remote_ports -v) | grep -E '+Class Device path = "/sys/class/fc_host/host[0-9]+"$|+node_name.*= "0x[0-9a-f]{16}"$|+Class Device path = "/sys/class/fc_remote_ports/rport-[0-9]+:[0-9]+-[0-9]+"' | sed -e 's#.*host([0-9]*).*"#scsi-qla1-adapter-node=#' -e 's#.*rport-([0-9]*):[0-9]*-([0-9]*).*#scsi-qla1-target-2=#' -e '$!N;s#
##' -e 's#=.*node_name.*= "0x#=#g' -e 's#"$#;#g' | sort

and I want it to execute via ssh on a remote machine through a script. Therefor I need to escape it properly. Because of the massive use of regular expressions and commandline options, this is not an easy task. Is there any (online) utility that will escape that for bash use? I suppose pasting the code in vi and doing some search and replaces should do the trick. But for that I would need a list of characters to escape...

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General :: Command Path Is In PATH But Bash Does Not Find The Command

Jul 12, 2011

kernel 2.6.21.5, slackware 12.0
GNU bash 3.1.17

Code:

As you can see, /usr/local/bin is in the path. However, bash does not look for nasm in /usr/local/bin.

If I am root, things go well:

Code:

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Ubuntu :: Terminal Title Reset After Command Execution?

Apr 12, 2010

I'm not quite sure what's up with this, but when I change the title of a terminal away from the default (e.g. to represent which project that terminal is to be used for), it changes back to the default (user@host:path), but only on the task bar at the bottom of the screen, listing the open windows.

If I change tabs in the terminal and then change back, it displays again at the bottom of the screen, but as soon as I execute another command (e.g. ls), then it resets again. That's quite annoying, as I like to have a few terminals open, each with a set of tabs pertaining to a particular project. The fact that I can't see from the title on the taskbar which is which means I have to guess/remember/check them all...

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