Questions tagged [command-line]

The command-line is the interactive interface to your shell.

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2
votes
2answers
416 views

Software (SciTe) runs differently when opened from Terminal Vs GUI

When I open SciTe from the terminal everything works fine. When I open it via Ubuntu 10.04 GUI drop down boxes I get this error every time I try to run a ruby program: sh: ruby: not found At this ...
-2
votes
1answer
653 views

Red hat linux command line character underscore problem [closed]

When I type a command e.g. cd /etc/ I get the following cd /etc$ if I press the backslash key again then I get the correct entry cd /etc/ I am using gnome but I get the same problem ...
2
votes
1answer
11k views

Setenv error message

When I opened up the Gnome command prompt, several lines of the message: No command 'setenv' found, did you mean command 'netenv' from package 'netenv' (command) However, I have never used ...
2
votes
1answer
1k views

Recursively Gziping Files (and keep original files) & Gziping Text Input

I need Gzip to pre-zip some static files for a webserver I'm building. All of the files I need to gzip will be in a folder named .cache. Since some clients may not accept responses that are gzipped, I ...
5
votes
1answer
44k views

Run java classfile from terminal

I have a compiled java file somefile.class, and when i cd into the right folder and do: java somefile it works but when i call it from another folder: java folder/somefile it doesn't work, it gives me ...
2
votes
3answers
7k views

How to find every file that includes a given function?

I am trying to list all of the files that include a function, e.g., matrixCal. How can I to do this in linux?
1
vote
1answer
921 views

Need command-line program to download all of http:// https:// scp:// ftp:// style links (on e.g. ubuntu)

I'm writing a perl program where I want to accept all kinds of "file names" from the user, including /home/foo/bar.txt and scp://server/some/file.txt or whatever. And then I thought that if I can find ...
6
votes
1answer
234 views

Bash executes a different file from the one prompted, even when providing full path

I imagine there's a environment variable or some setting I'm unaware of, but this is driving me nuts. baco:~ # ls -la /root/subversion-1.4.6/subversion/svnadmin/.libs/svnadmin -rwxr-x--- 1 ...
0
votes
0answers
120 views

How to use find command with wildcard when current directory contains a match? [duplicate]

Possible Duplicate: find not recursive when file at top I'm having some confusion with the find command. If I type: find . -name *.xml or find ./ -name *.xml I receive a list of all the xml ...
3
votes
1answer
509 views

rm command returns a message [1] 12345 What does this mean?

I'm trying to remove a file and I keep getting a message similar to: [1] 12345 and nothing happens, I run a directory search (dir) and the file remains and I get a stopped message
3
votes
1answer
304 views

ssh behavior for root and non-root user

When I ssh as root to a remote machine, the command output looks like this: root@Machine:/current/path#: However, if it's a non-root user, all I see is: $ How can I get the same behavior as for ...
3
votes
1answer
695 views

Whole program name not visible in nethogs

I'm using the command sudo nethogs to watch network traffic. I have a problem in that the name of the program is too long (it doesn't fit in the PROGRAM column). I haven't found any nethogs ...
1
vote
1answer
116 views

How do I unset a background in gnome on the command line?

So someone decided to set my gnome background as a practical joke to a rather disturbing picture. However, I don't use gnome and only log into it by accident. I need to remove the picture so when I ...
0
votes
1answer
127 views

Video archiving method?

I want to archive family videos, films, etc. I'm currently using: mencoder INPUT.avi -o OUTPUT.avi -ovc x264 -x264encopts bitrate=750 pass=1 nr=2000 -oac mp3lame -lameopts cbr:br=128 I want to ...
3
votes
4answers
125 views

command for joining a series of files together

I have... me@computer:~/gutenberg/euclid$ ls book01.html book04.html book07.html book10.html book13.html book02.html book05.html book08.html book11.html book03.html book06.html ...
5
votes
2answers
4k views

Fedora auto suspend

I am using Fedora 13 and for shutting down and rebooting automatically, we have the following commands: # shutdown -h/-r now Similarly, if I want to make my system go into suspend mode after ...
9
votes
2answers
579 views

Stochastic version of seq for generating sequence of random numbers/words?

Some time ago I used a seq-like tool for printing a sequence of pseudo random generated numbers to stdout. You could specify a range, seed, and the number of samples and much more. I've just ...
3
votes
3answers
1k views

Is there a way to make the prompt definition multiline?

This is my current prompt definition: PS1=$'%F{063}%1~%f %(1v.%F{099}%1v %f.)%F{063}%%%f ' RPROMPT='$VIMODE %m' and I'm working on integrating this. Basically I'm starting to find it very unreadable....
3
votes
1answer
97 views

Testing precedence of resolving addresses from commandline

There was such tool but I cannot remember its name. I needed to configure precedence of addresses by /etc/gai.conf. I finally managed to find an error, but for future, what's the name of tool which ...
8
votes
2answers
2k views

Directory “diff”?

I have two directories which are different versions of the same software package. I'd like to list all the files/directories that have changed between the two then copy those differences to a new ...
13
votes
4answers
643 views

rolling diffs for storage of highly similar files?

At work we do a nightly dump of our mysql databases. From day to day, I would guestimate that close to 90-95% of the data is duplicate, increasing as time goes on. ( Heck at this point some are ...
3
votes
2answers
218 views

Commandline tool for comprehensive and integrated testing of internet connectivity

Is there a commandline tool for GNU/Linux which will analyse download and upload speed, packet-loss, latency and other factors which will indicate internet connectivity status?
5
votes
1answer
2k views

How to execute shortcut keys from command line?

I am running Gnome. I would like to execute a shortcut key combination from the command line. For example, type a command that generates the key codes for Ctrl+Alt+Left. Does anyone know of a way to ...
1
vote
4answers
746 views

No manual page for regex in section 3 - where is it?

I found What do the numbers in a man page mean? which explains the sections for command/library documentation quite nicely, and I was looking at the output for man regex and noticed the See Also ...
3
votes
4answers
1k views

Send file to opened editor using command line

Recently I found out a new very useful command. It is: gnome-open or xdg-open or just open on mac. It opens file or directory in by default specified program. But, in the event that I ...
-1
votes
2answers
328 views

CentOS command issue

This is what I am trying to run in VMware using CentOS 5 /pwnat: invalid option -- p usage: ./pwnat <-s | -c> <args> -c client mode (default) <args>: [local ip] <...
1
vote
0answers
338 views

How can I automount devices with no desktop environment? [duplicate]

Possible Duplicate: Replacement for halevt? I've installed Arch Linux on my computer and I'm not using a desktop environment. I just have Openbox window manager installed and bit by bit I'm ...
8
votes
3answers
4k views

Print an SVG from the command line

How can I print an SVG, already scaled to a4 size, from the command line? I tried using lpr, but instead the printer just printed out the actual XML of the file, which isn't what I wanted.
6
votes
3answers
2k views

Deleting lots of files

I accidentally created 8 million files and every time I'm trying to delete them the server almost dies because of the rm process eating all disk IO (the server is remote without console). Should ...
47
votes
1answer
37k views

What do double slashes mean in UNIX path? Is `cd dir/subdir//` valid? [duplicate]

Possible Duplicate: How linux handles multiple path separators (/home////username///file) Do cd dir/subdir/ and cd dir/subdir// mean the same in UNIX? Will the later work out? Else does it have ...
1
vote
1answer
2k views

Execute a command in a different path

When using Git VCS, I execute all of the git commands on the directory that contains a .git repository. I want to execute a git-pull through an SSH trigger but how do I define the path to the ...
19
votes
4answers
2k views

What should I use when cut doesn't cut it?

I have a file cities like this: [1598] San Diego, US (inactive) [4517] St Louis, US (inactive) [6346] Orlando, US (inactive) I want to cut out the city names, so that I have: San Diego St Louis ...
1
vote
1answer
279 views

Pressing `up` to get the previous command in a tty on Ubuntu Server

I've installed Ubuntu Server 10.10, and when I press up in a terminal nothing happens. Using Ubuntu Desktop it gave me the previous command that I ran. How can I make it do this in Ubuntu Server as ...
5
votes
2answers
1k views

How do I execute a script later?

I need to compile gcc45 on my computer and that's a lengthy and resource-intensive process for my computer, so I'd prefer to have it do it while I sleep (at night). What's the closest thing to: $ @...
35
votes
2answers
7k views

Where do my ANSI escape codes go when I pipe to another process? Can I keep them?

I sometime want to pipe the color-coded output fror a process, eg. grep... but when I pipe it to another process, eg. sed, the color codes are lost... Is the some way to keep thes codes intact ? ...
3
votes
4answers
7k views

How to get size of a block special file? [duplicate]

I need to be able to determine the size of a block special file. For example, given /dev/sda, I need a command that will provide the size of the device. (By size I mean capacity, since this is a ...
3
votes
2answers
1k views

Change the time format for the touch command in BSD

I am wondering how to change the time format when I am modifying a time with the touch command in the c shell. For example I need to use touch -a -t 051512002015 file.txt This will change the ...
3
votes
0answers
176 views

How to copy a long textfile to clipboard on gnome-terminal? [duplicate]

Possible Duplicate: How do I send stdin to the clipboard? What's the best way to copy a long text file to keyboard? I'm imagining something like: cat longTextFile | straightToClipboard
4
votes
6answers
2k views

How do I find a command if I don't know its name?

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 ...
2
votes
0answers
161 views

Execute command when file changes [duplicate]

Possible Duplicate: Can a bash script be hooked to a file? Hi there, I am trying to execute a command every time a file changes. Is this possible? I think there is some way to watch for a file, ...
2
votes
3answers
511 views

Cannot access network on the command line in Ubuntu 10.04

I am having an issue which I am unable to diagnose. I am unable to access outside the local network from the command line. Strangely, ftp works from the command line. But ping, links, traceroute, wget ...
10
votes
3answers
7k views

How do I use redirection with sudo [duplicate]

Possible Duplicate: Redirecting stdout to a file you don't have write permission on Yeah I could (and probably will) just escalate to root, but I'd like to know why this doesn't work? sudo ...
4
votes
2answers
559 views

Relaunch application once finished

Is there a command that relaunch the application once it finishes from the command line? Letting you do something like: > relaunch python myapp.py If not, then what's my best option? I know I ...
5
votes
2answers
6k views

What params do I pass to grep to return only file names?

I'm trying to use grep to find a specific piece of text in a bunch of files on my web server. No problem, except that it returns way more information than I want! Ideally it would just return a list ...
2
votes
1answer
820 views

Can I redirect stdout from a background application after starting it? [duplicate]

Possible Duplicate: redirect output of a running program to /dev/null Is it possible to change stdout after starting something as a background application in the command line? Say I run test.py: ...
13
votes
1answer
6k views

What does *~ mean?

At the end of a makefile I saw rm -f *~ *.class I understand the *.class, but what's *~?
2
votes
3answers
572 views

Selective recursive move?

Is there a command like mv --preserve-structure src src/1 src/2/3 dst which creates dst/1 and dst/2/3? It should work similar to mv src/* dst, but move only the subtrees listed.
9
votes
2answers
2k views

What does “-” mean as an argument to a command?

I found this link on how to open tgz in one step. gzip -dc target.tar.gz | tar xf - What does the '-' mean?
3
votes
1answer
3k views

xmessage over ssh

The following command prints a message over ssh : xmessage Message -display :0 & How does it work? there is no -display option in xmessage's man page.
29
votes
1answer
4k views

Should the usage message go to stderr or stdout?

Should the usage message which is printed with e.g. command -? of a Unix command go to stderr or stdout, and why? Should it go to the same place if the user makes a mistake with an option?