Often if I am doing something in the terminal I will mistype something and enter something unintended.   If I type int as a trivial example, it tells me Command 'int' not found, but there are 18 similar ones.  Not that I need to know these 18 similar commands, but is there any way to find out what these "18 similar ones" are? Whether it be in the terminal or otherwise.
123026
I had this on my Ubuntu setup and since I switched to Fedora I want to set it and I forgot how... The idea is simple :   I don't want the terminal to show me suggestions when I double tab, instead I want it to cycle through every possible suggestion with each press on tab... this can be done in Vim also.   So when I type gedit a and press tab it will show me every file with a first letter a.
25849
Can anyone tell me the difference between ctrl+z and ctrl+c?  When I am in the terminal, both the combinations stop the current process, but what exactly is the difference between both?
55413
The question is pretty straight forward. I can get the exit code of the previous command by using $?. But what exactly is it?  I don't think it is a variable, because you can't have any special characters in the name of variable other than _.  foo?foo=10   will result in the error: foo?foo=10: command not found  So if it is not a variable, what is it? Are there others like it?
115281
When I type man bash it shows the info in the terminal itself.  How do I tell "man" to open up the info in gedit instead? Is this possible?
64463
So, when a command is not found, by what means is the "did you mean:" list populated? What program finds these alternate commands?  What is the meaning of: "(main), (universe)..."? Can I change which program finds these?
84980
I accidentally typed ctrl + L in terminal and my terminal window jumped one 'screenful' size. I looked at the keyboard shortcuts in "Edit"->"Keyboard shortcuts" and didn't find that shortcut.  What does ctrl + L do and where is it defined?
44260
Right, this is a slightly annoying feature because something this happens, and other times it doesn't, very odd.  I paste a command into the terminal with a view to tweaking its arguments, and sometimes it executes the second I paste it. Sometimes it doesn't.  This ranges from embarrassing ( posting nonsensical comments on an IRC ) to dangerous.   How can I shut this feature off for good? I never, never, never want the terminal to auto execute when I paste to it.
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Often when I mistype a command such as ls (e.g. I hit ENTER before I type 's') there is a long (~2s) delay after the terminal displays:  bash: l: command not found...   I can understand the reasons for a similar delay after an incorrect password is entered, per . But why delay after an unrecognized command? Does FAIL_DELAY in /etc/login.defs affect this also?
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I would like to define a number of related commands by using the counter in a for-loop.  For example, I want to define 26 commands like this:  \newcommand{\calA}{{\cal A}} \newcommand{\calB}{{\cal B}} ...   I've been searching for a while (and have in fact learned quite a bit), but have still not found the answer. Here's my latest attempt (it uses the forloop package):  \newcounter{ct} \forLoop{1}{26}{ct}{     \expandafter\newcommand\expandafter%     {\csname cal\Alph{ct}\endcsname}%     {{\cal \Alph{ct}}} }   All 26 commands are created, but are all defined as {\cal Z}. I guess {\cal \Alph{ct}} is only expanded after the loop has completed.  How can I accomplish my goal? And how does it work?
21492
Using the following command, could someone please explain what exactly is the purpose for the ending curly braces ({}) and plus sign (+)?  And how would the command operate differently if they were excluded from the command?  find . -type d -exec chmod 775 {} +
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Sometimes, being rushed, it is possible to type some characters wrong in a command-line. If the command is long, the mistake correction may be cumbersome (using arrow keys). So the problem is: how can I replace characters typed wrong in the previous command as quickly as possible?
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If the which command is not available, is there another 'standard' method to find out where a command's executable can be found?  If there is no other 'standard' method available, the actual system I face currently is a bare Android emulator with an ash , if that means anything.
77425
As a Unix beginner, I often find myself wanting to know the name of the command that achieves a particular function I'm after. How can I go about finding out the name of the command, given a description of what it does?
72586
In a virtual terminal I (accidentally) pressed Win+1 and got a new line consisting of  (arg: 1)   As long as I keep Win pressed, all numbers I press get appended to the number in the parentheses, e.g. Win and 1+4 yields (arg:14).  When I (after releasing Win) press any key, that character is printed as many times as the number reads and the (arg: ...) expression is replaced by the standard prompt.  Does anybody know what happens here?
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It seems that a common operation needed when defining new commands is to scan over a list of arguments (separated e.g. by a comma, but maybe by something else) and do something with each argument in the list, find the last one, or whatever.  For example to write commands that look like \Command{a,b,c} or \Command{c.d.e} and do something with each a, b, and c. See e.g. questions on  and .  Some solutions have been posted there, but what would be the best idiom to perform such kind of operations? LaTeX's \@for looks very nice, but is it possible to use it to scan anything other than comma-separated lists?
28794
Possible Duplicate:          I wanted to know if it was possible to define a new command with a name that contains numbers?  e.g. \newcommand{\agent1}{agent~1}  Or even \ag1ent if having a number at the end is problematic.  I couldn't find the answer in the FAQ.
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I love creating hotkeys to open programs and menus, but sometimes I can't figure out what the command for something is. For instance, it took some Googling to find out that the system monitor is opened with gnome-system-monitor  Is there anyway to figure out the terminal command for any program or menu (such as keyboard shortcuts or display settings) in Ubuntu?