Tagged Questions
9
votes
2answers
132 views
What are the characters printed when Alt+Arrow keys are pressed?
When I press AltUp, A printed to terminal screen. Same thing happened when I pressed AltDown but B is printed instead.
Other characters that I realized;
AltLeft = D and AltRight = C
What is the ...
4
votes
0answers
67 views
why . and .. are listed when ls -a command executed? [duplicate]
When I execute the ls -a command, all files and folders in that directory listed, as well as . and .. are listed too.
Why is that? Are they a file or folder?
4
votes
1answer
257 views
Is there any way to have console (rogue) mode programs take over only part of the terminal screen?
I like the command line because it preserves the context of what I'm doing. But if I use a "rogue" mode program like vi or less, the whole screen gets taken over.
Is a middle way possible, where the ...
4
votes
3answers
97 views
Is a command's stdout to the terminal being logged?
I am interested in learning whether a command's output to the terminal is logged somewhere.
Since that can be a bit too generic, what about cat (and ccat) in specific? If I use cat on a file, will ...
0
votes
1answer
337 views
Cannot execute binary file on Mac OS X Lion 10.7.5
I want to execute phylocon on a mac OS X lion but after changing the path and making the file executable, I get the error 'cannot execute binary file'. But the steps that I took to running the command ...
2
votes
2answers
221 views
Urxvt draws lines slowly
I'm using Arch Linux and Urxvt as terminal emulator. When I scroll up/down, text lines gets rendered so slow I can count by top to bottom (heh, 1st line get rendered... ohh, 2nd one! ...). It takes ...
1
vote
2answers
321 views
ALT+F2 doesnt work in Linux Mint Mate
I am trying to install Sublime Text 2 on Linux MINT (Mate) from this tutorial. http://community.linuxmint.com/tutorial/view/907 and I'm stuck on:
Next , to create a menu icon press Alt+F2 and type:
...
3
votes
2answers
747 views
How to refresh a window by terminal? Or how to simulate `F5`?
I would like a way to refresh a specific window by the terminal.
Probably I will need a comand to find the id or the name of the window and a command to refresh it.
It looks like xrefresh cannot do ...
2
votes
1answer
153 views
How to undo in spreadsheet calculator sc?
spreadsheet calculator sc is a very old console-based program. It does what the name says. I cannot find how to undo an operation in its man page. I currently use it together with RCS, ie. manually ...
29
votes
4answers
12k views
How can I close a terminal without killing the command running in it?
Sometimes I want to start a process and forget about it. If I start it from the command line, like this:
redshift
I can't close the terminal, or it will kill the process. Can I run a command in ...
1
vote
2answers
135 views
How to stop a infinite running process (ztail) started by a ssh session after that session is closed
I have a peculiar problem. My server supports multiple ssh session simultaneously, so that multiple admins can manage (via command line interface) it simultaneously. We have a command which calls ...
7
votes
2answers
243 views
Command line input while a running script displays strange symbols
If I use the bash shell cli and run some program which doesn't return immediately, then I input some letters (basically typing the next command before noticing the previous didn't finish) and the ...
2
votes
3answers
101 views
How to echo (a (executable-)string) to the prompt, so that the cursor flashes at the end of the line?
How to echo (a (executable-)string) to the prompt to make the cursor sit at the end of the line?
So that I can hit Enter to execute or Ctrl-C to throw away the line.
Is this possible at all?
I ...
1
vote
1answer
145 views
How to make FreeBSD variant of cal start weeks on mondays?
Can week start day be changed in cal output?
Is it hardcoded? Notice: not the ncal.
12
votes
3answers
3k views
SSH inside SSH fails with “stdin: is not a tty”
I'm trying to connect to machine one with ssh and then connect to another machine two with ssh, but I get this error.
ssh [email protected] 'ssh [email protected]'
stdin: is not a tty
...
2
votes
1answer
98 views
How to put “glue” CWD (etc.) to part of the screen instead of putting into PS1?
I suspect there’s some terminology for this question that I’m not aware of. It’s hard to check if a question has already been answered if one doesn’t know the proper vocabulary. So, sorry if this is ...
8
votes
3answers
213 views
How can my script know when I'm in a virtual console vs. an xterm?
A few of my scripts (keymap changing, public key adding) need to act differently when in a virtual console vs. in an xterm. What's the real code for
#!/bin/ksh
if [[ in_a_virtual_console ]]; then
...
1
vote
3answers
665 views
How do I exit or cancel a bad bash command?
I expect to get some flak for this, but I can't find the answer anywhere. It seems like it should be so obvious. Sometimes, when I type a bad command in a bash terminal, the cursor just jumps down to ...
8
votes
3answers
818 views
Converting colored output into html
There are tools providing coloured output:
dwdiff -c File1 File2 # word level diff
grep --color=always # we all know this guy
...
The question is: How to convert their colored output of arbitrary ...
1
vote
1answer
195 views
When a command is over half the terminal size it breaks
Whenever I type in a bash command longer than about half the width of the shell window I'm in, the command breaks like it would if I filled the whole screen
3rd command in image - typed a few xs ...
4
votes
4answers
318 views
xargs and vi - “Input is not from a terminal”
I have about 10 php.ini files on my system, located all over the place, and I wanted to quickly browse through them. I tried this command:
locate php.ini | xargs vi
But vi warns me Input is not ...
-1
votes
3answers
197 views
Duplicate bash prompts
I'm having an interesting issue with XFCE Terminal/Gnome Terminal (not reproducible in XTerm), where executing bash or logging in using login or su will open a new Bash instance inside a Bash instance ...
5
votes
2answers
555 views
How to tweet using terminal?
I would like to tweet a message using terminal.
I tried something like:
curl -u 'TwitterUsername':'TwitterPassword' -d status=”Your Message Here” https://twitter.com/statuses/update.xml
but seems ...
5
votes
1answer
208 views
Redirect terminal output to image file
I need to programmatically run some unix commands and get the output in a image file, the format could be png or jpeg (jpg).
The commands are run in an AIX (IBM *nix) machine. I don't have ...
3
votes
4answers
212 views
Change working directory of 2 terminals at once
I've typically have gnome-terminal open with ~8 tabs, using 2 consecutive tabs for the same task (one has emacs, the other is used to do git checkins and unittest runs and so).
When changing tasks, I ...
0
votes
1answer
177 views
Run a script after some command were executed
I have a list of scripts
./myscript <param> | grep "asd"
./myotherscript <param> <param> > file
...
How can I automaticaly run another script when one of these command in the ...
5
votes
2answers
640 views
Aliases and tmux
Aliases defined in .bash_aliases and .bashrc don't work in tmux.
Can this be changed in some configuration, so the aliases work under tmux?
1
vote
1answer
385 views
What does @ sign mean in 'ls' output on Mac OSX Lion terminal? [duplicate]
Possible Duplicate:
what does the @ mean in ls -l?
What does the @ sign mean in the following "ls" output?
-rw-r--r--@ 1 root wheel 489 Jan 4 13:14 boot.plist
4
votes
1answer
3k views
Encode with ffmpeg using avi to mp4
What command lines to use to convert from avi to mp4, but without destroying the framesize and making the file small as the original size or a little bit bigger, and same thing with mp4 to avi? ...
1
vote
0answers
193 views
ffmpeg: error while running with libx264
Main code: ffmpeg -i 2269801.avi -threads 0 -vcodec libx264 -b 900k -acodec libfaac -ar 44100 -ab 96k -ac 2 earthgirlsareeasy1.mp4
[libx264 @ 0x16cdde10]broken ffmpeg default settings detected
...
1
vote
0answers
153 views
i386 libtool conflicting with x86_64 libtool when installing Handbrake
I've been trying to install Handbrake on centos 5.8 with the help of some different guides. I'm running x86_64, and whenever I try to install packages necessary to build the binary, the arch ends up ...
2
votes
1answer
390 views
Sending some input into a process, then resuming input from command line
I have an interactive terminal program, that accepts stdin (telnet for example).
I want to send it some input before interacting with it, like this:
echo "Hello" | telnet somewhere 123
But that ...
0
votes
1answer
106 views
terminal logging doesn't complete when I close the terminal
This is the last line in my .bashrc (lines breaks inserted for readability):
STARTTIME=`date +%F-%Hh-%Mm-%Ss-%N`; \
script -q -t 2> /home/USER/logs/$STARTTIME-timing.txt \
-c 'bash --rcfile ...
8
votes
4answers
3k views
How to attach terminal to detached process?
I have detached a process from my terminal, like this:
$ process &
That terminal is now long closed, but process is still running and I want to send some commands to that process's stdin. Is ...
7
votes
4answers
1k views
Displaying week's number in certain format using ncal or cal
Don't you just love it when two commands each do one thing you want but neither do both?
This is what cal does. Nice formatting. Lacks week numbers though.
$ cal
January 2012
Su Mo Tu We ...
12
votes
4answers
2k views
Why do some commands 'hang' the terminal until they've finished?
Sometimes you run a program from the terminal, say, lxpanel†. The terminal won't drop you back to the prompt, it'll hang. You can press Ctrl+C to get back to the prompt, but that will kill ...
3
votes
1answer
479 views
Change xscreensaver lock option command
How could I change the lock option for the xscreensaver from the command line?
Been looking around and couldn't find anything about it.
xscreensaver-command -lock will lock it right away, which is ...
1
vote
1answer
182 views
What causes delay in my keystrokes on OSX's Terminal application?
I'm using the OSX application Terminal to work remotely on Amazon EC2 servers through SSH.
Occasionally and seemingly randomly, my keystrokes are delayed. I've tried reconnecting, restarting ...
3
votes
1answer
198 views
How to use SCSUDO to run scripts with positional parameters?
I am trying to use scsudo to run a number of defined commands to stop and start processes on a UNIX host. The issue I am experiencing is that scsudo does not seem to like the use of positional ...
5
votes
3answers
521 views
How to launch a set of program inside tmux or gnome-terminal within a script?
I wanted to launch a few commands simultaneously in tmux or gnome-terminal or xfterminal ,
every different tab with a single command running , and close that tab when that command finishes.
Any ...
11
votes
6answers
21k views
How to connect to a serial port as simple as using SSH?
Is there a way to connect to a serial terminal just as you would do with SSH? There must be a simpler way than tools such as Minicom, like this
$ serial /dev/ttyS0
I know I can cat the output ...
3
votes
1answer
191 views
Conditionally killing a process based on its output
I have a REPL (read-eval-print-loop) for the Clojure programming language listening on a network socket. I can send it code over the network and the code will be evaluated and the answer sent back to ...
2
votes
1answer
271 views
Keyboard input not displayed on the screen?
We use the `exceed tool to connect to our UNIX servers, but sometimes the command-line behaves erratically. When I am typing some command on the command-line, nothing happens -- nothing is displayed ...
0
votes
1answer
84 views
Ubuntu x86 10.10 terminal
I just downloaded a Ubuntu v10.10 vmware image for Windows. I'm trying to install a web application that can only run on Linux MySQL, Apache and PHP. How do I open a terminal in Ubuntu?
1
vote
1answer
293 views
How to resume multiple instances of Screen from command line with minimal steps?
I have about 15 instances of screen running on my linux server. They are each running processes I need to monitor. I had to close terminal (hence the reason I launched screen).
Is there a way to ...
4
votes
2answers
3k views
How to signal the end of stdin input in bash
In Bash, I learned that the ending
signal can be changed by here
document. But by default how can I
signal the end of stdin input?
I happened to find that with cat and
chardet, their stdin inputs can ...
10
votes
1answer
998 views
What protocol/standard is used by terminals?
I was wondering how the "GUI" of a command line application is communicated over a network. Most of the time, it's quite simple (plain text / input) but sometimes it's more complex (aptitude).
Is it ...
4
votes
4answers
855 views
Copy text from one terminal into another
I am logged into ssh to a university account from my home computer. Then I find a file that I want to copy onto my local system. So I open a new shell terminal and am about to use scp to copy that ...
5
votes
1answer
296 views
How to use the ul command line utility
I wanted to answer http://unix.stackexchange.com/questions/3043/use-roff-to-underline-words with "just use ul, this command is meant specifically for underlining text", however I just can't grasp how ...
8
votes
2answers
827 views
Clearing GNU Screen after full-screen application
When working at a normal xterm (not sure about a "real" terminal), when a full-screen program such as man or vim is closed, it disappears, leaving your screen so you can see your prompt, and previous ...
