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

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1
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1answer
28 views

How to invoke Gnome 3 activity screen using command line?

What I'm trying to do I'm using a Logitech MX Revolution mouse, which has a button below the scroll wheel mapped to search, which I remapped to middle click. For doing so, I had to remap XF86Search ...
10
votes
9answers
3k views

Console Text Editor with Windows-like keyboard shortcuts (ctrl-z, x, c, v)

Ok, I realise that I risk a religious war asking a question about text editors, but here goes. Requirements Mostly used for config file edits Text based not GUI Available for Raspian flavour of ...
0
votes
1answer
27 views

automatically download latest stable tarball from sourceforge from command line?

I'd like to install a program from sourceforge sources. Is there a way to download the latest stable source from SourceForge? an example for ntopng would be very welcome.
1
vote
5answers
88 views

How to copy a file from a remote network to the local desktop

So I used SSH to remotely login to another computer on a network. I have many files that I would like to copy over to my local desktop. I am trying to follow this How-to : However, I think one ...
5
votes
1answer
92 views

What's the easiest way to resize an ext4 partition from the command line?

What's the easiest way to resize an ext4 partition (or any type partition depending on the method) from the command line (potentially with the fewest commands, but also the easiest to understand)? ...
7
votes
6answers
724 views

How to read first and last line from cat output?

I have text file. Task - get first and last line from file after $ cat file | grep -E "1|2|3|4" | commandtoprint $ cat file 1 2 3 4 5 Need this without cat output (only 1 and 5). ~$ cat file | ...
2
votes
1answer
78 views

How to enable double tab autocompletion list in bash?

I've worked in Linux before where when I press tab it autocompletes until it becomes ambiguous. If I pressed tab twice at that point it would give me a list of all possible completions. My current ...
3
votes
1answer
36 views

Concatenate in a PDF the first page of several odt files alphabetically

I have, in the same directory, several odt files. I'd like to have in one PDF document the first page of these odt files, sorted alphabetically based on their filename. For example, if I have these ...
2
votes
1answer
43 views

How to transform a text file into a picture

If I have a plain text file, how can I convert it to an image file through the command line? (and preserve the layout of the ASCII art in it)
2
votes
2answers
74 views

Use output from head to copy files with spaces

I have 11 files with spaces in its name in a folder and I want to copy the newest 10. I used ls -t | head -n 10 to get only the newest 10 files. When I want to use the expression in a cp statement I ...
3
votes
4answers
2k views

Find only destination of symlink

For use in a shell-script, I'm looking for a commandline-way to get the destination of a symbolic link. The closest I've come so far is stat -N src, which outputs src -> dst. Of course I could ...
2
votes
2answers
40 views

Is it possible to obtain OS X versions of Unix tools on modern Linux distributions (like Ubuntu or RedHat)?

I have observed that there are often subtle and often annoying differences between the default versions of certain command line tools like paste and sed on modern distributions of Linux versus OSX. ...
2
votes
2answers
99 views

“cat” command: how to automatically escape everything that might be a violation?

If you copy the contents of httpd.conf and then paste it into a cat command.. such as this one.. #!/bin/bash cat > /test << EOF pasted here.. EOF you run into this error: -bash: ...
3
votes
2answers
107 views

change url of web browser thru command line?

Is there some way to change the current url (of current tab or an specific tab) of a running web browser (any) thru command line? It can be any browser that run on linux, preferably if it is light ...
2
votes
3answers
482 views

get age of given file

How can I get the age of a given file in, at least, days? I'm well aware of ls -lh and similar commands. I want something that will work sort of like this: getfage <FILE> # prints out '12d' ...
5
votes
1answer
116 views

Strange kind of “stealth” directory on Linux

I am in a Linux machine and am working with a directory that is aptly named "stealth", because it runs and hides! Take a look at this behavior: bash-3.2$ ls /net bash-3.2$ ls -la /net total 4 ...
11
votes
5answers
521 views

Is there a more succinct alternative to piping to wc for counting files in a directory

If I do ls -1 target_dir | wc -l, I get a count of files in a directory. I find this a bit cumbersome. Is there a more elegant or succinct way?
20
votes
9answers
26k views

Converting multiple image files from JPEG to PDF format

I want to convert some files from jpeg to pdf. I am using following command. $ convert image1.jpg image1.pdf But I have 100 images. How should I convert all of them to corresponding pdfs? I ...
1
vote
3answers
107 views

copying files with particular names to another folder

I have a folder with a lot of files. I want to copy all files which begin with of these names (separated by space): abc abd aer ab-x ate to another folder. How can I do that?
0
votes
1answer
51 views

Download all source files for a webpage

I want to download the source files for a webpage which is a database search engine. Using curl I'm only able to download the main html page. I would also like to download all the javascript files, ...
55
votes
9answers
2k views

Remember a half-typed command while I check something

I often find myself in the following position: I've started typing a long command at the bash prompt, but half-way through I find out I need to check something with another command. This is a problem ...
25
votes
7answers
54k views

How do I make my pc speaker beep

Using bash, how can I make the pc speaker beep? Something like echo 'beepsound' > /dev/pcspkr would be nice.
92
votes
26answers
12k views

Tracking down where disk space has gone on Linux?

When administering Linux systems I often find myself struggling to track down the culprit after a partition goes full. I normally use du / | sort -nr but on a large filesystem this takes a long time ...
2
votes
0answers
25 views

rlwrap-like tool with command autocompletion

I am often using rlwrap sqlite database.sqlite to browse an SQLite table. It works great but I would like to have a tool that would create an index tables (and possible its columns as well) and let me ...
0
votes
3answers
48 views

how to export all numbers that are unique in few text files into another file?

I have a.txt,b.txt,c.txt. Each has different numbers as below: a.txt: 12 14 111 1 15 2 b.txt 12 18 22 23 1 2 c.txt 12 14 15 16 17 1200 The output should contains all the numbers from ...
4
votes
2answers
38 views

NFS: share with all clients except one

I want to share a folder with all the network's clients except only one. This is my current /etc/exports file: /opt/resources *(rw,async) What should I add to prevent the client 192.168.1.24 ...
4
votes
3answers
97 views

Achieving hexdump-like format, that includes binary strings, on the command line?

I really like hexdump, especially because you can define a custom format; say: $ echo -e '\x00\x01\x02\x03' | hexdump -v -e '1/1 "%_ad: "' -e '4/1 "%02X "' -e '1/1 " : "' -e '4/1 "%_p"' -e '1/1 "\n"' ...
3
votes
2answers
72 views

Mounting Disk Image in Raw format [duplicate]

While Trying to mount a disk image in Raw(dd) format using the following command mount nps-2010-emails.dd /media/manu/ I get the following error message mount: you must specify the filesystem ...
0
votes
0answers
31 views

How to halt a command while it's running? [duplicate]

I want to know how to halt a command while it is already running. My need to do this is that I was going to update my system (Fedora 20) as usual, so I ran the command sudo yum update and it started ...
5
votes
1answer
34 views

How to get rid of unnecessary lines in gnuplot

So I'm pretty new to using gnuplot, and my code looks like this: set isosamples 40 unset key set title "Radial Matrix Elements" set xrange [1:15] set yrange [1:15] set xlabel "n1*" set ylabel "n2*" ...
1
vote
4answers
928 views

Firefox or Chromium command-line arguments to set fullscreen and control start page

On http://susestudio.com/, there's an option to enter custom command line scripts. How do I write one that changes the default homepage and sets the browser full screen?
6
votes
2answers
2k views

diff where lines are mostly the same but out of order?

I want to diff two sets of mod_rewrite rules. The set of lines are about 90% identical, but the order is so different that diff basically says they are completely different. How can I see which lines ...
1
vote
0answers
30 views

Conversion of disk image from Encase (E01) to Raw format [closed]

I am trying to convert from EnCase to Raw format using instructions given on this page. The following takes place: manu@ubuntu:~/Downloads$ ewfexport nps-2010-emails.E01 The program 'ewfexport' is ...
0
votes
1answer
28 views

Mount a file collection in a linux environment

I am presently working as a summer intern. My first objective is, given a collection of files, recover and identify the file types present in it. To download sample pseudo-forensics data I have been ...
102
votes
15answers
38k views

How to do integer & float calculations, in bash or other languages/frameworks?

Using echo "20+5" literally produces the text "20+5" What command can I use to get the numeric sum, e.g. 25 in this case. Also, what's the easiest way to do it just using bash for floating point, ...
0
votes
1answer
92 views

Custom command wget without response

I have an arduino with an ethernet shield that is controlling a relay, which control the lights. I usually just use the phone to send a http get request from a widget in tasker, but I would like to be ...
3
votes
1answer
65 views

Compare two files strictly line-by-line, without insertions or deletions

I have two files that essentially contain a memory dumps in a hex format. At the moment I use diff to see if the files are different and where the differences are. However, this can be misleading when ...
3
votes
4answers
9k views

Installing JDK 7 on debian

So I just rented a dedicated server running Debian, and I know nothing about Linux. Anyway, I want to install the JDK 7, first I connected through SSH and granted myself administrator rights by ...
2
votes
5answers
2k views

how to pass the result of `find` as a list of files?

The situation is, I have an MP3 player mpg321 that accepts a list of files as argument. I keep my music in a directory named "music", in which there are a few more directories. I just want to play all ...
6
votes
4answers
2k views

using the mail command

How do I use the mail command to check email (and send email) from gmail. Does it support labels? I couldn't have figure out where to put the username and password. I tried to search for instruction ...
2
votes
2answers
1k views

What does the tilde (~) mean at the end of a filename? [duplicate]

What is the file with the ~ at the end of the filename for? $ ls # aliased to add flags -rwxrwxr-x 1 durrantm 2741 May 16 09:28 strip_out_rspec_prep_cmds.sh~* drwxrwxr-x 13 durrantm 4096 May 16 ...
15
votes
2answers
1k views

Create a test file with lots of zero bytes

I know how to create an empty file: touch /var/tmp/nullbytes but how can I create a 1MB file that only contains nullbytes on the commandline with bash?
1
vote
3answers
46 views

How to remove all FIFO files with a shell command

I can't find a shell command to remove all the FIFO files inside a directory. In fact, for the removal of directories, the rm command offers the options -d, --dir, but for FIFOs it offers no option. ...
1
vote
0answers
91 views

Copy files to parent directory using relative pathnames [closed]

If I'm in the current working directory of oxford. How would I copy outline.doc, and place it into the sample_dir directory using relative pathnames? I've tried cp outline.doc ../outline.doc
1
vote
2answers
1k views

How to avoid the need to issue “y” several times when removing protected file

I'm looking for a solution to be used as a response to "rm: remove write-protected regular file [x] ?" I was thinking of issuing a character followed by carriage return for several amount of times, ...
2
votes
2answers
112 views

View contents of magnet URL via command line?

Is there any way to view the contents of a magnet URL using command line? I've tried aria2c which can view the contents of a torrent file but doesn't seem to show contents of magnet URLs.
3
votes
1answer
47 views

Get a Kerberos service ticket from the command line

I am in the process of debugging a Kerberos setup. I have a valid krb5.conf and I can call kinit USERNAME to get a Ticket Granting Ticket (TGT): Credentials cache: /root/krb5cc_root Default ...
4
votes
3answers
3k views

stderr redirection not working in csh

I run the following command: pkg_add emacs-23.4,2.tbz 2> output.log The output still displays in the terminal. When I press ↑, I get pkg_add emacs-23.4,2.tbz 2 > output.log with a space ...
21
votes
7answers
6k views

How to understand what's taking up space?

I'm looking for a linux alternative to WinDirStat. I would like to know what is taking up space on my hard drives. A program that works on console and doesn't require a UI is preferred .
1
vote
2answers
7k views

How to install/remove/upgrade .rpm packages on Red Hat?

I am new to linux, and at the university we are using this distribution to mount servers on VM, but I need to install a package that is missing in my virtual machine that is running Red Hat, but how ...