Ubuntu :: Short Key To Command Histroy In Terminal Running Bash?
Jan 20, 2011
In windows command prompt, F8 key can cycle through your previously entered commands i.e say you enter "ping google.com" and then "pushd <dir>". Next when you type p and then press F8 brings pushd and next F8 brings ping command. You can then hit enter to execute the corresponding command i.e ping in this case.Is there anything similar in Ubuntu Terminal running bash? Very handy to get back previously entered commands.
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Jun 5, 2011
I got a problem with terminal, since i'm really a noob with terminal i don't know how to fix it.Everytime i type in a command it shows for example:
-bash: ls: command not found
Even the basic commands don't work... just cd <directory> and those things works
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May 22, 2010
while using history command i can able to see only last twenty histroy commands.
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Jul 10, 2010
I'm writing a bash script to move files around based on various bits of metadata. For a few reasons, this script will be run regularly both from the terminal, and from the nautilus-scripts folder ("graphically", if you will). What I'm stumped on is having the script defer outputs based on which mode the script is running in. For example, how can I have the script know whether to echo error statements, or pump them out to zenity based on the method of invocation?
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Aug 9, 2011
Trying to write a script for desktop launchers that are adaptable to screen resolution. Ideally, the program should:
1. Determine screen resolution:
if "a" use xdotool options window size 1305 x 869 px and move to 135,0
if "b" use xdotool options window size 1545 x 1019 px and move to 135,0
2. Check if program running:
if no, open program, and use "a" or "b" placement options, focus window
if yes, focus window
3. Close script and leave program open (if possible).
Problems arise when trying to use the script on programs that run from and hog the terminal
(e.g. brasero, gcalctool, nautilus)
Here the script will load the program, and nothing else (probably because it still occupies the terminal as it runs)
Code:
gcalctool && xdotool search "calculator" windowmove 135 0
This next command will cause the program to load, move, but it keeps focusing itself like xdotool is running the windowmove function constantly - it keeps focusing itself until script stopped.
Code:
gcalctool & xdotool search "calculator" windowmove 135 0
This had the same effect as the above code, but seems to work as a conditional subscript running when the process is running in the terminal - it just goes infinitely.
Code:
while [1] ; do xdotool search "calculator" windowmove 135 0 done exit
Is there some kind of "if, then" or "while, do" or some kind of conditional I can put in to the script ensure the window is moved only once if the program is running within the terminal? Is there a way to remove the program from the terminal from the script once it's been called?
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Sep 10, 2010
I open up 2 xterms on my desktop, A(/dev/pts/0) and B(/dev/pts/1).I can write from A to B using redirection e.g. echo "test" > /dev/pts/1How do I run a command from A on B? e.g. "clear"Basically I'm putting the 2 terminals side by side, and using terminal B to display the contents of the current working directory, by running the following in A:export PROMPT_COMMAND="ls -a > /dev/pts/1"but this fills up the screen pretty fast. I was actually looking for a way to clear up the second terminal.
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Jan 5, 2010
Is running a command in the Alt+F2 prompt possible in a bash script?I need this for a launcher for gnome-shell.For it I have written a little script to check if the process gnome-shell is alive and act accordingly.The script works fine, I just don't know how to write "debugexit" to the Alt+F2 prompt, as that is the only decent way I have found to shut gnome-shell down and going back to gdm desktop smoothly.
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May 14, 2011
I am relatively new to linux but i need to run a command in the terminal so i can prevent wireless power save from happening every time i switch to battery power. I dont really want to go into the terminal every time i switch to battery mode so i want to be able to launch this command upon start up:
Code:
sudo iwconfig wlan0 power off
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Apr 6, 2011
I'm trying to do something here:: I'm writing a bash script, I want to [open a new terminal and run a bash command in it] inside the script. I tried to use this, but apparently I get syntax errors.
Quote:
#! /bin/bash
echo "echo Something" > ~/Second.sh
chmod +x ~/Second.sh
xterm -e sh -c ./Second.sh
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Jul 7, 2010
writing bash scripts (wrote my first one this Sunday) and I'm trying to zip a group of files. It has to be in zip format so alternatives like tar won't work here. I have my script in a folder which has a bunch of Sub-directories in the format "Lab 3" "Lab 5" "Lab 6" etcWhat I'd like to be able to do is take all of the files (just the contents not the folder itself) in the "Lab 3" Folder and put them in Lab3.zip. I'm really close but no matter what I try I keep getting the folders put into the zip file instead of the Folders contents
Code:
#!/bin/bash
LabNum=(3 5 6)
[code]....
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Aug 17, 2010
Here's my linuxquestion I have a bash terminal window opened by next command:
Quote:
gnome-terminal -x bash -c "bash"
Now i need to run different commands or scripts AS ROOT in this terminal window from another terminal. I tried things like
Quote:
sudo echo 123 >/dev/pts/4
The result is 123 in that terminal window, but sudo password is asked in my tab where i entered the command.
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Apr 14, 2011
I'm trying to ssh my ubuntu laptop with my android phone. But with the app I have (connectbot) I don't seem to be able to pass any args to the command. I want to pass the -Y command to allow my phone access to the screen on my laptop so i can use my laptop (somewhat) from my phone. Can you change the args passed to the command while it is running?
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Mar 22, 2010
I'm trying to write a bash script program in the Linux command terminal that will write to a fellow user and then continue reading down the program. this is what i have (kind of explains the idea too):
#!/bin/sh
clear
echo "this is before the write command"
write jcummins
this message should go to jerry
echo "the message didn't send and this string will not appear"
echo "it appears it has stopped at the write command"
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Nov 17, 2010
I have downloaded the hplip command on the desktop, attempted to cd desktop, and it shows "no such directory". running this command so I can set up my printer? And I can't seem to put the screenshot here..
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Oct 18, 2010
When I open a terminal and start the 'top' command to view the running processes, in the summary view I get 4 users. I guess that in addition to my account the root runs in the background but who are the other 2??
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Sep 3, 2009
I've used the following script here: [URL] to upgrade Alsa to 1.0.21 in Ubuntu 8.04. Now whenever I run:
Code:
sudo shutdown -h <time> or sudo reboot from the terminal I get a rather annoying beep sound. What's even more annoying is if I use the shutdown command to specify a time I get a beep every 10 minutes or so.
I've tried disabling the terminal beep in the terminal profile, disabling the beep in System/Preferences/Sound, adding "blacklist pcspkr" to /etc/modprobe.d/blacklist, and running gconf-editor from the terminal and setting /desktop/gnome/peripherals/keyboard/bell_mode to 'off' rather than 'on'.
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Dec 10, 2010
if we type a command such as "locate somefilename" in the terminal we will get all the paths to the file name as output. If i want to copy only one line from that output how do i do that without using mouse?i need terminal short cut to copy one line
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Feb 1, 2010
I did something stupid; I think while creating some new short+keys for the terminal, I must have enabled an unknown feature to me. The keypad now acts like a mouse. For example; With NumLock on, I press 7 the mouse goes north+west. I press 6 the mouse pointer goes east.
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Jun 25, 2010
I have a startup script for jboss (start.sh) that sets some JAVA_OPTS and then calls bash run.sh.If I run it (start.sh) from the command line it runs in the terminal fine. If I make a shortcut launcher for it in gnome and set it for 'application in terminal' it pops up then immediately dies after launch.Not sure what the problem is. Is this not working because one script is calling a second script? But then why does it work when I call ./start.sh?
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Mar 1, 2011
I have a quick question: how can I make the path short on the console? My problem is that if I descend 10 levels in a directory tree, the path becomes so long that it takes more, than one line of the console window. Is there a way to shorten it, and show only the name of the current directory, without the whole path, i.e., instead of
Code:
v923z@penguin: first/second/third/fourth/fifth/sixth/seventh/eighth/ninth/tenth>
only
[code]....
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Jan 18, 2011
I would like to copy a file from some random folder and send to a "Test" folder in root directory. But I havn't found how to specify the root directory without using ../ until i reach the root directory.i.e. suppose I'm in my random folder where I want to copy my file sudo cp somefile.txt (root???)/Test
what do i put for root?Just as additional explanation, if I have a Test folder in my home directory that i wanted to transfer to, then i could simply do cp somefile.txt $HOME/Test.
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Jun 25, 2010
the short file descriptor of an ISO file. I have been assigned with a task to match the short file descriptor of an ISO file(to be provided to the customer) to check if thats "Kudgo Support tools" or not.What linux command should I use?
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Aug 13, 2010
Is there a way to use exec, but if exec fails to go on with the script?
Example:
Code:
#!/usr/bin/env bash
exec startx
echo "Starting of X failed"
If startx fails, the echo will be seen on the screen. I tried all kind of stuff, but guess it ain't of much use to post it here. I searched the web, but searching for "exec and bash" in one sentence does give results which are not what i am looking for.
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Apr 29, 2011
Some of my short cut keys seem not ot be working. Ex Alt +F2 dose not open a pop up command line. Also would like to add some short cuts. Like Ctrl + Alt+ Backspace for reboot. I went to the short cut app and I can add a short cut key, name it, but can't seem to figure out how to assign it a function. Didn't seem intuitive to me. I'm using the UNE version on a asus eel 1000.
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Dec 10, 2010
Linux-goers. I did some research on this, but I am still fairly new to Linux. In Ubuntu 10.10 (Maverick), I accidentally overwrote my "/bin/bash" file. Dude, using "sudo" with a small typo can work disasters. Bash is now broken in the Terminal (gnome-terminal). Terminal itself still works fine, technically, but bash is still hosed/broken. Here is what I did to try to fix it: Booted from Ubuntu 10.10 live CD. Mounted my Ubuntu partition and manually copied the good/fresh "bash" file onto my hard drive. Verified copy was successful. Didn't help, as you see. Reinstalled "gnome-terminal" using synaptic package manager. Tried to reinstall bash via synaptic, it failed with error, "E: /var/cache/apt/archives/bash_4.1-2ubuntu4_i386.deb: subprocess new pre-removal script returned error exit status 2"
In Terminal, all basic commands work as far as I can tell. ("ls", "pwd", navigation, etc.) Here are some problems:My "username@computername" does not display in the prompt; only the $ sign. Bash keyboard shortcuts such as uparrow and tab do not work. Instead, each inserts a key code. I can't even move the cursor left/right. Aliases (a function of bash and .bashrc) are broken, of course. My sanity level decreases when I use Terminal now. For what it's worth, even with "sudo" I get a "permission denied" error when trying to run Google Chrome! I read something about a ".bashrc" file being a possible problem, but I don't know how to make it work, or the file's proper locations in Ubuntu 10.10. Is there something I can do with a "make" or "apt-get install" command or something?? Could this simply be a permissions problem? Is the link to "/bin/bash", "/bin/sh", or a ".bashrc" file broken? Guide me, oh Linux gurus.
P.S. I always wondered what exactly bash was and how it was different from the basic terminal. LoL, this is an excellent way to demonstrate the difference, and I WANT IT BACK!
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Oct 6, 2010
i need to write a short script that will compress a specific folder that`s on the Desktop (and all it`s content) and also will encrypt it with a password that is inside the script --->meaning it wont ask for a password+verification when compressing+encrypting
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Aug 12, 2010
Is there a command line option that will allow less to return to the command line if there are not sufficient lines in the file to warrant paging.
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Jan 12, 2011
I'm an Ubuntu user and I always chat on Yahoo, MSN, Gtalk and Facebook accounts using Empathy (with the fact that there is no better alternative; pidgin is heavy for me). I have noticed long earlier that all the chat histories are saved. However, just today I discovered that I couldn't delete those histories. Hitting the clear option from the right click fly out menu doesn't permanently remove the history. I can see them again when I try to look for previous conversations.
I believe there is a way to permanently remove chat histories from Empathy.
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Feb 29, 2016
I mainly use debian jessie , recently i have installed daragora as my second os to get a feel of gnu/linux . the problem is that dragora uses bash , and it's commands are different from debian jessie terminal is there a way that i can use the same commands here in dragora?
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Mar 7, 2010
i'm trying to write a bash script to upload an image to [URL], but i can't get i working properly. Everytime i try, the html returns me a error saying "Upload is disabled during short maintenance work (ETA 10 minutes). Brb!", while from the browser everything works fine. This is my current command line:
Code: curl -L -b cookie-pix.txt -c newcookie.txt www.pixhost.org/cover-upload -A "Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)" -F 0=@/home/admin/Desktop/karm.jpg -F content_type=0 -F press=Upload And this is the html of the form:
[Code]....
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