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

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2
votes
3answers
56 views

How can I shutdown a RHEL server at 06:45 tomorrow morning?

I just received notification that our site has a power outage tomorrow morning. I am a Windows admin but I have to cover for our Linux admin who's not around until tomorrow evening. I need to ...
1
vote
1answer
32 views

Sort and count number of occurrence of lines

I have Apache logfile, access.log, how to count number of line occurrence in that file? for example the result of cut -f 7 -d ' ' | cut -d '?' -f 1 | tr '[:upper:]' '[:lower:]' is a.php b.php a.php ...
22
votes
4answers
2k views

Is there a simple Bash tool which can quickly render basic HTML?

From time to time I need to do a simple task where I output basic HTML into the console. I'd like to have it minimally rendered, to make it easier to read at a glance. Is there a utility which can ...
1
vote
1answer
324 views

Can I split a avi file into 2 valid (watchable) files with only standard unix commands?

The question is self explanatory. I have a very big movie file, I want to split it in 2. How can I do this?
1
vote
2answers
94 views

Print UTF-8 file with command line tools

I want to print a file using a command like cat filename > /dev/lp0 where the file contains characters like ùàç encoded in UTF-8. Is this is possible or do I need to use CUPS? I'm using an ...
2
votes
3answers
48 views

Writing a script that outputs local users and their password expiration date

I'm new to Linux and scripting, and was doing a practice problem and am stuck on it. I'm supposed to write a script that outputs local users real name and their password expiration information. This ...
1
vote
1answer
32 views

How to change double hyphen to single hyphen of file names?

I have been using the rename command to get control over my naming conventions across my system. In converting spaces in file names to hyphens, I have inadvertently created consecutive hyphens in some ...
0
votes
1answer
27 views

What does newermt mean in find command?

I know I can use this option to find file between particular modified times. But I'm curious about what does this mean? I used man find | grep newermt trying to find something. But I got no direct ...
0
votes
2answers
391 views

Installing fonts via terminal [on hold]

I have downloaded font files in .ttf format, I want to install these fonts via the terminal, What is the command for that?
2
votes
0answers
59 views

How to type a right to left language in terminal?

Please forgive me if this is a bad question. OK. I have installed Debian recently (without a GUI) to learn the CLI and C using the LearnCodeTheHardWay tutorials. Its going well, and I feel at this ...
4
votes
4answers
162 views

How to capture command line input into logfile and execute it at the same time?

Let's say I issue some commands on the command line: #capture what follows $ echo "foo" foo # don't capture $ echo "bing" bing # capture again $ echo "bar" bar How can I log commands selectively ...
0
votes
0answers
21 views

How to connect SFTP server using command line [on hold]

I wan to connect sftp server using command prompt.I tried following methods but its not working ssh username@remote_hostname_or_IP AND sftp username@remote_hostname_or_IP Its giving me following ...
4
votes
4answers
2k views

How to pass each line of a text file as an argument to a command?

I'm looking to write a script that takes a .txt filename as an argument, reads the file line by line, and passes each line to a command. For example, it runs command --option "LINE 1", then command ...
112
votes
15answers
55k 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, ...
3
votes
2answers
5k views

Example xfreerdp usage with clipboard plugin

FreeRDP 1.0.2 has an updated their parameter syntax for "better interoperability with Windows." I had a problem using the old syntax where the clipboard plugin only worked the first time I pasted, ...
47
votes
11answers
21k views

how do you sort du output by size?

How do you sort du -sh /dir/* by size? I read one site that said use | sort -n but that's obviously not right. Here's an example that is wrong. [~]# du -sh /var/* | sort -n 0 /var/mail 1.2M ...
0
votes
1answer
26 views

Issues executing program

Ultimately I'm trying to get a program to run at start up and work correctly. I have been successful in getting it to show up in running processes after a reboot, but it doesn't seem like it is ...
2
votes
2answers
101 views

How to split an image vertically using the comand line?

So, say I have a large 800x5000 image, how would I split that into 5 separate images with dimensions 800x1000 using the command line?
15
votes
3answers
563 views

Why don't shell builtins have proper man pages?

All shell builtins share the same manual page: BUILTIN(1) BSD General Commands Manual BUILTIN(1) NAME builtin, ! etc. Then there is a little text describing ...
-1
votes
0answers
37 views

Command line commands that every one needs to know! [on hold]

Well I'm new to Linux, and I have really never used a Command line before... So I have no idea of its potential. I know some of the basic commands like: apt-get xrandr aptitude clear startx ls cd ...
0
votes
1answer
47 views

How do I resize partitions and filesystems on them?

How can I resize partitions from the command line without GParted?
2
votes
1answer
456 views

How do I decrypt a message using openssl's CLI?

I have a message, I know the password and the cipher that was used to encrypt it, but I can't figure out how to ask openssl to decrypt it. I see the cipher in the output from the ciphers command, and ...
23
votes
10answers
14k views

Which mp3 tagging tool for Linux?

Which app would you recommend for Linux to tag MP3s? Under Windows I used to use tag&rename and liked it a lot; it works well under Wine, but I want something that runs natively
3
votes
2answers
30 views

How to print a range of IP addresses with Linux seq command

How can I print a range of ip addresses on linux command line using the "seq" command? For eg: I need seq to print a range of ip from 10.0.0.1 to 10.0.0.23 . Seems like the period in between the ...
1
vote
1answer
899 views

How to access u boot environment from linux?

How can I access and change the u-Boot env variables in linux. Using the u-boot/tools/env directory in u boot directory: u-boot$ make env Which created the executable file fw_printenv. I copied ...
0
votes
0answers
11 views

od: Put offset n to n of a hexdump to a file in proper hexdump -C (hex+ASCII) format

I have a 155GB canonical hex+ASCII hexdump hexdump -C blah > dump.dp Then ran: strings dump.dp | grep -bo 'XXXX' > found.txt So now, that file contains the string's hex offset in the ...
3
votes
1answer
42 views

Run vsim from dmenu — it only works when directly invoked in the terminal

Works: vsim, sh -c vsim Doesn't work: echo "vsim" | sh, echo "vsim" | xargs -I {} sh -c "{}" I want to run ModelSim (vsim) with dmenu, which is triggered using xbindkeys. Details vsim is a ...
0
votes
1answer
57 views

How can I convert this excel file so that it is not only one row?

I've got an Excel file, shown in the picture below, and available for download here. What I need is to extract the variables under Item (Column B) and the values in column G. As a start, I tried ...
1
vote
1answer
32 views

Make parent directories while creating a new file

I am aware of the fact that mkdir -p /path/to/new/directory will create a new directory, along with parent directory (if needed ). If I have to create a new file, along with it's parent directories ...
3
votes
2answers
447 views

Jingle CLI client / Jitsi replacement / VOIP

I am looking for a Jingle client for the command line. Currently, I use Jitsi, but my dreams of not needing the GUI for more than just web-browsing are not realized due to my reliance on this ...
17
votes
5answers
5k views

echo a file without the first and last lines

Is there a simple way I can echo a file, skipping the first and last lines? I was looking at piping from head into tail, but for those it seems like I would have to know the total lines from the ...
0
votes
2answers
6k views

Difference between ifconfig and ipconfig? [closed]

What is the difference between ifconfig and ipconfig? What do dhcpcd and ifconfig actually do?
0
votes
1answer
44 views

How to list down all useless or less used files or application in my linux server?

I want to clean cruft from my Oracle Linux server. For this, I need to know which application or directory isn't used or is hardly ever accessed. Is there any command or way to list directories or ...
12
votes
4answers
8k views

Sorting files according to size recursively

how to scan a folder recursively and find the largest files in the folder, and sort them by size. I have tried using ls -R -S but it tends to list the directories as well I need to scan the folders ...
5
votes
1answer
28 views

Printing webpage using browser via CLI

I want to automate printing. From URL in text file, the webpage is printed. I have tried using wget and the results are very inferior than when printed via browser. Somehow FF and Chromium both manage ...
5
votes
4answers
19k views

How can I embed subtitles into videos with ffmpeg?

I'm told it's possible to embed subtitles (.srt) into video files (.avi) using ffmpeg, but I can't find any mention of it in the man page. Is this possible? What command do I use?
-2
votes
2answers
39 views

How can I add lines in /etc/rc.conf

I followed this tutorial to install FreeBSD 10.1 and at the step where it says "Add the following lines to /etc/rc.conf" I must to add the following lines in there: hald_enable="YES" ...
22
votes
9answers
8k views

How do I split a flac with a cue?

I've got a full album flac, and a cue file for it. How can I split this into a flac per track. I'm a KDE user, so I would prefer a KDE/QT way, I would like to see command line and other gui answer's ...
1
vote
1answer
29 views

Ls -1 Command in linux on Ubuntu dosen't show details beside the name of each directory or file in the list? [closed]

I am using Ubuntu and when i issue this ls -1 command there is no details appear in-front of the directories and files names there is only a blank space ..what can cause this ?
0
votes
2answers
68 views

Unix grep confusion

I am doing an assignment for school and using putty to complete the assignment. The format of the assignment does not allow for much variation and thus only one answer is sufficient enough to allow me ...
29
votes
9answers
66k 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.
1
vote
2answers
20 views

Trying to connect through cl

I am trying with: $ sudo iwconfig wlan0 essid mynetwork key 4bare2011 $ sudo iwconfig wlan0 essid mynetwork key 4bare2011 mode Managed and similar combinations. I'm using Ubuntu 14.04. The key ...
1
vote
1answer
53 views

What does `{\} {}` mean in `find` command?

Please explain this command in detail. I am using this command to find large files above 6MB and split in to 5MB chunks in the same folder. Then it removes the original files (larger than 6MB) in the ...
0
votes
1answer
41 views

Diff: slightly different filenames, same file

I'm using diff -rq to compare directories on a Mac OS X 10.6 server. In folder1, we have 'filename'. In folder2, we have'filename.archive' because folder2 is created by a file sync app that also ...
51
votes
6answers
6k views

When is xargs needed?

The xargs command always confuses me. Is there a general rule that can help me figure out when I need it? Consider the two examples below: $ \ls | grep Cases | less prints the files that match ...
2
votes
1answer
40 views

How can I know which organisation a special command line tool is belong to?

Frequently we use command line tools to do fancy things in UNIX like system; many of them have a manpage and typically we can know which orgnization/person owns the copyright. For example, on Mac OS X ...
0
votes
3answers
82 views

Simple way to extract value from HTML

I have a very simple html file with a value inside. Value is 57 in this case. <eta version="1.0"><value uri="/user/var/48/10391/0/0/12528" strValue="57" unit="%" decPlaces="0" ...
1
vote
2answers
2k views

wget to get all the files in a directory only returns index.html

I'm new to using bash, and I have been trying to wget all the files from a website to the server I have been working on. However all I'm getting back is an index.html file. I let it run for 15 minutes ...
0
votes
2answers
25 views

why some programs needs -h and other no

I know that is not a exciting question, but yet I don't understand why some programs needs program -h and other program --help sometimes is very boring recognize it
0
votes
0answers
9 views

acoc: availability, similar projects and problems?

I am trying to work on a Linux project out of Linux From Scratch. The outcome is a Linux with dull command line and console. I tried to bring color to terminal and I hit some bits and pieces like ...