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

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0
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0answers
50 views

Pixelated display after run “sensors-detect”

I have a Lenovo y50-17 laptop with Mint linux installed. I started by doing sensors-detect, which I've done on computers in the past. I know I should have stuck with the defaults, but I didn't. ...
6
votes
1answer
119 views

Terminal does not accept pasted or typed lines of more than 1024 characters [duplicate]

When I enter text on stdin in an OS X Terminal, a single line is limited to 1024 characters. For example, cat > /dev/null beeps after I type (or paste) a line longer than this, and refuses to ...
1
vote
2answers
77 views

Copy .txt files in a certain directory

I have an issue in copying my file in my directories. I have .txt and .jpeg files in a lot of directories, and I want to copy only the .txt files according to the directory. For example, I have this: ...
31
votes
5answers
25k views

Is it possible to mount a gzip compressed dd image on the fly?

I like create an image backup for the first time I'm backing up a system. After this first time I use rsync to do incremental backups. My usual image backup is as follows: Mount and zero out the ...
1
vote
1answer
35 views

Generating a long sound file with SOX without actually playing the tone

I know how to play a tone for a specific amount of time using SOX. play -n synth 5 sin 347 I know how to save a tone using SOX. sox -n note.mp3 synth 5 sin 347 Question is : How can I save a ...
6
votes
4answers
674 views

pager program like less, able to repeat top N lines

Is there any way to make less program repeat first line (or first 2 lines) on every displayed page? Is there any other pager program which can do this? This would be a killer-app for database table ...
2
votes
1answer
42 views

How can I change the IP and gateway addresses permanently?

I recently installed Linux Ubuntu 14.04 to my computer. To enable internet connection I needed to change my IP and Gateway address. I did the following as a root user # ifconfig eth0 "my ip address ...
-2
votes
3answers
44 views

Can an argument be passed through the “alias” command? [duplicate]

I want to know if i can pass an argument with an alias command. for example: alias d="dmesg|grep -iw usb|tail -5" Now d will print the last 5 lines. if i want to use d to print a different number ...
15
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4answers
27k views

How can I make a program executable from everywhere

What should I do if I want to be able to run a given program regardless of my current directory? Should I create a symbolic link to the program in the /bin folder?
2
votes
3answers
59 views

Manipulate multiple files by inode

I have a large number of files that contain backslashes \ that I would like to manipulate, but whenever I try something like: $ ls -li 2036553851 -rw-rw-r-- 1 user user 6757 May 20 00:10 ...
5
votes
5answers
256 views

Run `grep` excluding a file in a specific path

I want to exclude the file ./test/main.cpp from my search. Here's what I'm seeing: $ grep -r pattern --exclude=./test/main.cpp ./test/main.cpp:pattern ./lib/main.cpp:pattern ./src/main.cpp:pattern ...
4
votes
4answers
195 views

Run multiple commands and kill them as one in bash

I want to run multiple commands (processes) on a single shell. All of them have own continuous output and don't stop. Running them in the background breaks Ctrl-C. I would like to run them as a single ...
0
votes
1answer
32 views

Linux driver privileges

I've loaded a custom driver to linux via mknod. However, now any programs I write to use it need to be run using sudo, which is difficult to do when I'm using an IDE. Is there any way to adjust the ...
0
votes
1answer
26 views

How does “command < filename.txt” look when passing filename into a command

I've got a scenario where I have command < filename.txt so I can pass the contents of filename.txt and use it in command. But say I want to take the contents out of the file and just use them in ...
0
votes
0answers
45 views

Shell script to send alert if mount point exceeds 75% [duplicate]

How to write shell script to send an alert if any file-system on server exceeds 75%, in one email notification instead of receiving separate alert email notification for each file-system. I am ...
4
votes
1answer
263 views

Create torrent with files from different directories from CLI

I have a directory structure that looks like: dirA fileA1 fileA2 ... dirB fileB1 fileB2 ... I would like to create a torrent using CLI utilities that contains: dirA/fileA1 ...
0
votes
0answers
37 views

use result of last line in bash [duplicate]

-> which vim /home/spo/Home/Platform/Linux/Module/Vim/Bin/vim su spo $RESULT_OF_LAST_CMD /etc/fstab What is the bash variable that holds the last commands result , like google chrome terminal . ...
3
votes
1answer
80 views

lshw shows a different amount of RAM than the 'free' command. Missing RAM? [closed]

Title says it all! uname -a: Linux servername 3.2.0-4-amd64 #1 SMP Debian 3.2.65-1+deb7u2 x86_64 GNU/Linux lshw output: *-firmware description: BIOS vendor: Dell Computer Corporation ...
0
votes
3answers
85 views

Is there something like “common Linux commands”? [duplicate]

I come from the windows world trying to switch to Linux. Sorry for the naïve question but is there something like "common Linux commands"? For example in Windows, the command line is pretty limited, ...
136
votes
5answers
25k views

I deleted /bin/rm. How do I recover it?

Just for fun, I thought I would use this command on my Raspberry Pi running Raspbian: sudo rm -f /bin/rm I thought I could just reinstall coreutils: I was wrong! apt-get install --reinstall ...
3
votes
1answer
64 views

Closing a GUI window from the command line

I often run scripts to transform a CSV file which I then preview in LibreOffice. I often open the CSV with xdg-open file.csv. However, if I run that command when the file is already open, ...
12
votes
6answers
14k views

How do I limit the number of files printed by ls?

Is there a way to limit the quantity of listed files on a ls command? I've seen: ls | head -4 but to get head to be executed I need to wait for ls to finish execution, and with directories with an ...
33
votes
9answers
57k views

How can I get a count of files in a directory using the command line?

I have a directory with a large number of files. I don't see a ls switch to provide the count. Is there some command line magic to get a count of files?
21
votes
7answers
4k views

how to glob every hidden file except current and parent directory [duplicate]

I want to glob every hidden file and directory, but not the current (.) and parent directory (..). I am using bash. Observe current behaviour: $ ls -a . .. ...a ...aa ..a ..aa .a .aa .aaa ...
2
votes
2answers
1k views

How to convert a group of video files using FFMPEG?

I have several video files in a directory and I want to convert all of them into other video formats. Is there any way that I can convert all of them in just one go using FFMPEG. I mean without having ...
36
votes
12answers
53k views

Efficiently delete large directory containing thousands of files

We have an issue with a folder becoming unwieldy with hundreds of thousands of tiny files. There are so many files that performing rm -rf returns an error and instead what we need to do is something ...
4
votes
1answer
16k views

access external hard drive to delete folder on terminal Mac

I want to delete a folder of portable hard drive on terminal in Mac. Are there any command line ?
2
votes
1answer
51 views

Can not access my external hard drive.

I am fairly new to Linux and have been trying to move some files around with terminal on my external hard drive but I can't seem to get it to work. I am using a generic external hard drive with a ext4 ...
4
votes
3answers
61 views

Why can't I open a shell from a pipelined process?

I've condensed my problem into the following code: #include <stdio.h> int main(){ char buffer[256]; printf("Enter input: "); scanf("%s", buffer); system("/bin/sh"); ...
3
votes
2answers
445 views

convert bulk of text files to pdf with naming based upon header file

Knowing that "How to convert from text to .pdf" is already well answered here link and here link, I am looking for something more specific: Using Claws-Mail [website] and a Plug-In [RSSyl] to read ...
0
votes
2answers
110 views

Files greater than 1 GB and older than 6 months

I want to find files which are greater than 1 GB and older than 6 months in entire server. How to write a command for this?
30
votes
6answers
6k views

How do I get a websites title using command line?

I want a command line program that prints the title of a website. For e.g.: Alan:~ titlefetcher http://www.youtube.com/watch?v=Dd7dQh8u4Hc should give: Why Are Bad Words Bad? You give it the ...
14
votes
4answers
8k views

How to kill a process with a single command?

I want to kill a process, after finding the id in a single step. I currently use these two commands: pidof <name> kill <#number_which_is_result_of_command> How can I write a single ...
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votes
2answers
164 views

How do I get a list of all directories and files with absolute paths each line ?

Using ls -R / i get every file and directory listed that exists, but not in the desired format. What do I need to write on the command line in order to get a list in such a format, that every line ...
31
votes
5answers
45k views

Set volume from terminal

Is it possible to set the audio volume using the terminal?, instead of clicking the speaker icon in the topbar, the reason I want need to do this is because my keyboard does not have a volume ...
5
votes
1answer
124 views

prevent multi-line paste in bash

I often use ctrl+c to copy text from some gui application and then paste it into my terminal emulator (terminator), using right-mouse-click-menu and paste. Sometimes I forget that the clipboard ...
13
votes
10answers
5k 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 ...
14
votes
4answers
29k views

How to check password with Linux?

I want to check, from the linux command line, if a given cleartext password is the same of a crypted password on a /etc/shadow (I need this to authenticate web users. I'm running an embedded linux.) ...
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votes
2answers
68 views

PDF: Using Terminal [closed]

I tried creating a PDF file using terminal . I wrote "vi New.pdf". It created the file. Now that when i trying to double click and open it . It said something like :- The file "New.pdf" could not ...
0
votes
1answer
101 views

Saving from arecord on a raspberry pi across a network to a mac

I've currently got a usb mic plugged into a Raspberry Pi B+ and am using the following code to record data: arecord --buffer-time=5000000 -D plughw:1,0 -f cd -t raw | lame -r - stream.mp3 I then ...
1
vote
6answers
4k views

Fast tool to generate thumbnail video galleries for command line

I use gframecatcher to generate thumbnail video galleries, i.e. something like this: However this is a GUI tool and I want to create recursively a gallery for every video in a directory structure, ...
4
votes
2answers
4k views

Why doesn't tar ask before overwriting existing files?

I lost a couple hundred lines of a Vim plugin I wrote and continue back up every so often because I extracted a tar file containing an older version. I decided not to use source control management ...
1
vote
1answer
248 views

How to extract the Nth file using 7-zip

I have an archive which, for reasons beyond my comprehension, contains 900 files all with the same name. That means that if I ask 7zip to extract them all, at the end there is just one file. The ...
3
votes
1answer
258 views

How to create a deterministic tar.gz using git-archive?

Creating a git repository for testing. ~ $ mkdir somefolder ~ $ cd somefolder/ ~/somefolder $ git init Initialized empty Git repository in /home/user/somefolder/.git/ ~/somefolder $ echo test > ...
3
votes
1answer
654 views

Estimate the size of the extracted files before extraction a `tar.gz` archive?

Before using tar to extract a .tar.gz archive, it is possible to get an estimate of how large the extracted files are in total?
0
votes
1answer
99 views

How to prevent expansion

My script parameters on the mask and consist parameters for the find tool: $mopt=false case $1 in ... -m|--mask-file) if $mopt; then or="-o" fi ...
8
votes
5answers
6k views

Show contents of many files

From the command line, what is the easiest way to show the contents of multiple files? My directory looks like below. ./WtCgikkCFHmmuXQXp0FkZjVrnJSU64Jb9WSyZ52b ...
1
vote
2answers
65 views

Command line tool to fingerprint and tag MP3

I have a large collection of MP3 files, accumulated over the years. The collection is intermittently tagged, and many filenames are totally nondescript as well (e.g. file01.mp3, file02.mp3, etc). The ...
3
votes
2answers
5k views

Unzipping a .gz file without removing the gzipped file

I have a file file.gz, when I try to unzip this file by using gunzip file.gz, it unzipped the file but only contains extracted and removes the file.gz file. How can I unzip by keeping both unzipped ...
3
votes
4answers
101 views

Find the last occurence of a string in a given filetype in all subdirectories

I have multiple sub-directories each with different depths. I need to search for the last occurrence of a string in a specific filetype (say *.out). How can I accomplish this? I have tried: grep -r ...