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

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13
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4answers
9k views

Easy way to paste command line output to paste bin services?

Are there any command line tools on Linux that allow you to post output from commands or text files directly to a sharing service such as pastebin.com?
1
vote
1answer
320 views

Does cron impose some limitations to types of commands and privilege of execution? [duplicate]

I've experienced an issue where some of my scripts run perfectly fine when I call them manually, but these same scripts when called as cron jobs via cron don't seem to work at all. So my question: ...
2
votes
2answers
2k views

Is it possible to execute the result of wget as a command?

I have 10 VPS machines and all of them have to run this one script that I need to change often, but I don't want to change it at 10 places, every time I need to make a change. I put the script as a ...
1
vote
2answers
676 views

Error Installing “ia32-libs” to run ADB and Fastboot Linux Mint 16 “Petra”

I have been trying to get adb, fastboot, avd and others to work with the latest version of Linux Mint (16 "Petra") I originally got this error when trying to run ADB: ➜ platform-tools ./adb ./adb: ...
1
vote
1answer
1k views

check internet speed from terminal? [duplicate]

How can I get the speed of my internet connection from the terminal? Is there any script or commandline application(s) available? I'm using CentOS 6.5 .
2
votes
1answer
673 views

How to connect to virtual /dev/ttyX from same machines pts terminal?

I want to get output/input from /dev/ttyX console (normally accessible directly using keys ctrl+alt+FNr, where Nr is number of /dev/ttyNr: ctrl+alt+f4 access /dev/tty4). I want to view and control ...
1
vote
0answers
886 views

Console Terminus Font Size in Slackware?

I am running Slackware 14.1 mostly from the command line on a 1366x768 monitor (using a vesa mode appropriate for the resolution, 0x34c if it matters, giving me a screen resolution of 1366x768x32 in ...
2
votes
1answer
494 views

Replace spaces and tabs at the end of the line in all files

I need to replace all unwanted spaces in all files from the current directory and from directories from the current directory (recursive search). I define the unwanted spaces the spaces and tabs that ...
1
vote
3answers
70 views

How to search for available software in repositories though CLI?

I want to be able to search all available software like one would using "Synaptic Package manager" or "Ubuntu Software Center" through Command Line.` I want a better way than pressing Tab after ...
1
vote
1answer
3k views

How to change camera info in Exif using command line

I have analog camera and I give a film to the lab where they scan it, I wanted to upload it to flickr but want to change info about camera. Right now it's NORITSU KOKI QSS-32_33 and I wanted it to be ...
1
vote
1answer
131 views

Mysql import the most recent file from a directory

I have a directory with daily backups of my entire MySQL database. I want to import the most recent backup into the database. I know to import a backup I need to use mysql -u root -ppasswordhere ...
2
votes
3answers
2k views

Can't cat a file or make a directory: contradictory output?

I am getting output from a terminal in Ubuntu 12 that I don't understand. $cat sublime no such file or directory $mkdir sublime cannot create directory 'sublime': File exists How can both of these ...
4
votes
2answers
197 views

Are nautilus and command-line commands the same?

When I copy, move, or delete a file in Nautilus or using the corresponding commands (cp, mv, or rm) does the same tool perform the action behind the wraps? I ask because nautilus tends to hang on big ...
1
vote
1answer
142 views

What's the practical difference between `command` and $(command)? [duplicate]

Both give the output of the command, so what is the semantic difference between the two? Some reading led me to suspect is that $(command) is Bash syntax, and the back quotes are integrated into Unix ...
7
votes
3answers
426 views

what is meant by vi and emacs editing modes [duplicate]

What is meant by "Enabling command line editing and vi and emacs editing modes"? I know vi is an editor and have used it as well, but what and how is it related to command line editing bamboozles me. ...
1
vote
3answers
3k views

Linux empty buffer cache command permission denied

I'm using the following commands to flush cache: # sync; echo 3 > /proc/sys/vm/drop_caches # sync; echo 2 > /proc/sys/vm/drop_caches # sync; echo 1 > /proc/sys/vm/drop_caches When I use ...
2
votes
3answers
949 views

What command do I use to see the start and end block of a file in the file system?

Is there any command that will output the beginning and ending blocks of any file?
1
vote
4answers
4k 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?
1
vote
1answer
361 views

Mount home partition on user login

I got a VPS with a user dedicated to store my files. As i am aware of the current situation with the NSA and many other governments, and my VPS is hosted on a doubtful country i would like to ensure ...
3
votes
1answer
573 views

How does the piping in this command ultimately achieve to kill the process?

I have seen the following line in a bash script for killing a process(in this case started with the command loadgen): ps xww | grep -i "loadgen" | grep "PATTERNMATCH_FACT.xml" | cut -c1-5 | xargs -i ...
0
votes
2answers
2k views

How to get sound intensity of an audio input through terminal?

I want to know the intensity of the sound being heard by an audio in source like a mic or Line-in through Command line. Kinda like the progressbar under the mouse but in CLI. audiointensity mic0 10 ...
0
votes
2answers
224 views

zsh: What does the command “time + number” do in zsh

When I type time + number in zsh: # atupal at local in /tmp/atupal/setup/bin [10:01:49] $ time 1 /tmp/atupal/setup/bin/lib/python2.7 # atupal at local in /tmp/atupal/setup/bin/lib/python2.7 ...
4
votes
4answers
2k views

How to show network adapters with their statistics?

Is there any terminal command I can use to display all the network adapters like eth0, wlanoand their data statistics like data transmitted & received?
2
votes
1answer
2k views

Cannot remove iwlwifi module, even though interface is down

When I run the following two commands, the first one returns without eror, but the second one gives me FATAL: Module iwlwifi is in use. sudo ifconfig wlan0 down sudo modprobe -r iwlwifi If bringing ...
6
votes
1answer
2k views

Wi-Fi with WEP from command line in Ubuntu 12.04, Kernel 3.8.0-29-generic

I have removed network-manager and am trying to configure Wi-Fi with WEP manually. I am running on an X1 Carbon. Here are the commands I am running: ifconfig wlan0 down iwconfig wlan0 essid ...
5
votes
1answer
7k views

How do I install Awesome Windows Manager in Terminal?

Right now I'm running on Kubuntu and I'd like to install Awesome Window Manager in terminal. I've used Xmonad but I'd like another window manager, but don't know how to install "Awesome" from the ...
4
votes
2answers
75 views

Using newline delimited list as parameter

There have been several situations where I have had some output such as thing1 thing2 thing3 But have wanted to do something like: *command* thing1 *command* thing2 *command* thing3 An example ...
1
vote
1answer
67 views

Get current output

This just crossed my mind. Let's say that I'm operating a remote machine via SSH and I executed a make command to, e.g. build a new kernel for my machine. While I'm logged in that session, I can see ...
-2
votes
1answer
105 views

how do I make a $VAR empty so it don't effect the command line argument and still be within that argument?

This is the basic setting for hsetroot for it to work: hsetroot -center /path/to/image/ - setting the wallpaper with just that the picture. To use these options, just one has to be place within the ...
0
votes
1answer
82 views

How do I see the contents of a drive in Debian command line?

I want to see what is on a drive so I can satisfy myself that it can be disconnected (unmounted?). This is a vm on ESXi with 3 datastores - first is the ESXi local storage, second is a nfs share on a ...
5
votes
1answer
77 views

how to input this command line

hume@linux-o1dm:~> gnomesu -u legum java -jar '/home/legum/frem/frem.jar' Unknown option -jar I want -u for gnomesu and -jar for java, but the openSUSE treat -u -jar only for gnomesu. What is ...
4
votes
1answer
619 views

Executing a remote command on SSH connection, before login

I am trying to find a way to execute a specific command when connecting to a server via SSH. By this I mean, the command will execute unconditionally on opening a connection, so this would preferably ...
-3
votes
1answer
90 views

Why is learning command line imporatant? [duplicate]

I googled this question many times but could not find a good reason why the knowledge of command line is important.Some say GUI cannot be used always but there are no examples supporting their ...
3
votes
3answers
2k views

How to move the first x files

I have this huge folder with thousands of unordered files. Is it feasible to move the first 5000s to a subfolder via the mv command? For now I move files with mv *some_pattern* ./subfolder1/ ...
1
vote
4answers
152 views

Symlink everywhere

Is there any way for me to symlink a particular file so that it appears in every directory on the system? So if I symlink /tmp/scratch No matter where I am I can type vi scratch?
2
votes
2answers
915 views

How to get rid of “Alarm clock” message in perl timeout?

[user@notebook ~] time perl -e 'alarm shift @ARGV; exec @ARGV' 1 sleep 2 Alarm clock real 0m1.004s user 0m0.004s sys 0m0.000s [user@notebook ~] My question: how can I get rid of that "Alarm ...
43
votes
5answers
143k views

How to stop a background process?

I have started a wget on remote machine in background using &. Suddenly it stops downloading. I want to stop its process, then start it again. How can I stop it? I haven't close its shell window. ...
1
vote
1answer
8k views

Running bash script gives `No such file or directory` when run with path [closed]

I have bash script aaa.sh that runs fine when I run it from the current directory. But if I try to run using the full path /home/vik/Projects/updd/aaa.sh, my system tells me No such file or directory. ...
1
vote
2answers
134 views

Removing “[crap-like-this]” from strings using bash parameter expansion?

If I have the following $STRING aaa.bbb.ccc.[ddd].eee.fff.[ggg].hhh is there any way, using bash parameter expansion, to echo the following aaa.bbb..ccc.eee.fff..hhh That is, remove all ...
-1
votes
3answers
12k views

How do I override rw-r--r— root/wheel for a all files in a directory?

I am trying to delete a directory on OS X. I do rm -r /path/dir but I keep getting many, many messages like this: override rw-r--r-- root/wheel for cron/migrate.php? I type y for one message, ...
1
vote
2answers
429 views

How is the loopback device traffic allowed?

How can I allow the traffic to be sent on the loopback device (lo)? What is the iptables command for it?
3
votes
2answers
121 views

keyboard shortcut to jump cursor to prompt?

I often mistype a command. So I will type this sublimetext myfile.txt instead of git add myfile.txt When I do this, I hit up to restore the last command. But after doing so, my cursor is at the ...
7
votes
1answer
1k views

What do I need to add a virtual IPsec adapter?

I'm trying to set up an IPsec connection manually from the console with iproute2. What I need is a virtual interface (at best, a virtual IP address could also be sufficient) that IPsec-transforms ...
0
votes
1answer
32 views

Is there any way to see the options for the next directory on a cd command?

When I cd to a/b/c, sometimes I want to see what are the children dirs of c. Normally, I would do it like this cd a/b/c ls child1 child2 cd child1 Is there any way to investigate the children ...
2
votes
1answer
2k views

How to install Mono v3+ in Ubuntu?

How can I install the latest release of Mono in Ubuntu Saucy? In order to develop in a free OS, I need to setup Mono (that now supports .NET 4.5). This is what I did: Download and uncompress ...
42
votes
7answers
120k views

Run a command without making me wait

On the CLI, sometimes a command I type takes a while to complete, and sometimes I know when that's about to happen. I'm a bit confused on "backgrounding" and such in Linux. What is the most common ...
3
votes
1answer
491 views

How to check corrupt and duplicated fonts on Linux?

I need to find software that can detect duplicate fonts out of a folder, and be able to tell if a font file is corrupted. Needs to be command line so I can script it for situations, although if you ...
0
votes
4answers
28k views

Opening Firefox from terminal [duplicate]

When I type firefox in terminal, it starts Firefox but the terminal "hangs". What is happening behind the scenes? Can I open Firefox from terminal and keep on using the same terminal tab for other ...
13
votes
2answers
7k views

what is `env <command>` doing?

What is the command env ls -al doing? I had a Linux test and there was question: "How to run command directly, but not its alias?" I knew that there exists solution like prefixing command with some ...
6
votes
2answers
15k views

Get common name (CN) from SSL certificate?

I have a SSL CRT file in PEM format. Is there a way that I can extract the common name (CN) from the certificate from the command line?