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

learn more… | top users | synonyms (1)

6
votes
1answer
534 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 ...
3
votes
4answers
2k 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 file type (say *.out). How can I accomplish this? I have tried: grep -r ...
2
votes
1answer
130 views

tool in terminal like helm-occur/helm-swoop for terminal?

I don't know whether this is the right place to post this question, but if you are not an Emacs user, I'll explain the basic usage of helm-occur/helm-swoop. I like helm-occur/helm-swoop for Emacs ...
1
vote
3answers
3k views

Checking pop mail account using terminal

Is there any command in unix to check a pop3 account using terminal? I mean, type the server/username/password of a pop3 account and see if the username/password is correct?
0
votes
1answer
120 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
3answers
4k views

command-line tool for a single download of a torrent (like wget or curl)

I'm interested in a single command that would download the contents of a torrent (and perhaps participate as a seed following the download, until I stop it). Usually, there is a torrent-client daemon ...
1
vote
2answers
732 views

Spawn multiple processes with a single command

Is there a way to create say 10 instances of a process (for example yes) with a single command? $instantiate 10 yes
1
vote
1answer
479 views

linux commandline can connect but webserver (or php) can't connect

We can connect to a specific url with linux (centos 6) commandline (curl, wget,...) But we can't connect to it by webserver (apache) or php. I did 'setenforce 0' command, after that webserver and ...
1
vote
1answer
252 views

Host linux distro without GUI?

I saw this video on Youtube: Run Kali Linux on Android The phone uses the app: Linux deploy, which uses the phone to host the distro, but there's is no GUI. The only way to connect to Kali, is by ...
1
vote
1answer
67 views

process id and command

I want to write the process id and command of all processes with some name and from some user (for example root and init). What should I do? ps -f -u root -C init or ps -f -U root -C init ...
4
votes
2answers
132 views

How to kill a bunch of jobs based on ps output?

Here is output from ps: $ ps aux | grep blob ubuntu 4286 0.0 0.1 34748 9592 ? S Jan14 0:00 /usr/bin/python /usr/local/bin/pynt start_blob_reader ubuntu 4287 0.0 0.1 34748 ...
1
vote
1answer
137 views

Using single command to find NIC speed

Do you know a single line command to capture NIC speed of the primary interface of the server. For example, for eth0 Get hostname using uname -n Get its IP using nslookup `uname -n` Search for the ...
2
votes
2answers
923 views

Command line interface Vs GUI [closed]

This may be a rather simple question but here goes. I am thinking of learning to use a CLI as I have been told it is more efficient for a technician to use than a GUI. Could someone please outline ...
0
votes
2answers
157 views

How to grep from command line for theses multiple strings?

I need to run a command to grep one of these strings from command line as web host disabled account to run website from browser until virus files are removed and I managed to collect few strings that ...
0
votes
1answer
438 views

Linux Mint 17.1: startx doesn't work and startxfce4 requires root

On Linux Mint 17.1 with XFCE installed, I removed MDM to enable booting in text mode. Now, when I try to run startx, it open the xfce4-panels on a grey background but gets stuck there with the panels ...
6
votes
3answers
224 views

Identify alias for the command typed

Is there any shell/shellscript which identifies that there is already an alias for the command I have typed on the command line. Eg On shell I type git checkout master Shell prints "You can use ...
0
votes
1answer
759 views

Sending a HTML file (with images) as email body using command line

This seems like a basic question and there are variations of it. I have a ONE-COLUMN html file (let us call it status.html). I would like to send this file which has a few images as the BODY of an ...
4
votes
2answers
3k views

kill: SIGSTOP: invalid signal specification error in bash script

When I use kill on command line it works. kill -SIGSTOP 1234 But if I use in bash script file I get this error: kill: SIGSTOP: invalid signal specification sh file is #!/bin/sh kill -SIGSTOP ...
1
vote
1answer
105 views

How to check if allocated memory was freed?

Does anyone know which command I need to enter on the terminal, so I can check whether all allocated memory was successfully freed?
12
votes
3answers
9k views

How do I compress files in-place?

I have a machine with 90% hard-disk usage. I want to compress its 500+ log files into a smaller new file. However, the hard disk is too small to keep both the original files and the compressed ones. ...
3
votes
7answers
346 views

find files based on name and moving them with renaming simultaneously

Consider I've directories named according to years and containing pdf files according to subject-code. ls output is: $ ls -l total 32 drwxrwxrwx 1 root root 4096 Apr 8 08:52 May-June-2011 ...
3
votes
1answer
590 views

prevent a command from sending both stdout & stderr to any terminal or file [duplicate]

I would like to prevent my program from sending stdout and stderr to any terminals, files or devices. For this, I have three command crossing my mind, but I cannot distinguish their differences. Could ...
-2
votes
3answers
222 views

Command to print users that don't have /sbin/nologin as a shell

Given the /etc/passwd file, what is the command to print only the login names of users that do not have /sbin/nologin as a shell? Also, in my /etc directory, what can I use as a command to count the #...
0
votes
0answers
374 views

Scientific linux GUI Doesn't start

I am a new user of Scientific Linux 6. I am working on a project started by others and unfortunately the GUI stopped working. I need to find out how to troubleshoot the GUI to solve the problem. What ...
3
votes
1answer
70 views

using shortcuts to move in bash command line [duplicate]

When I use Ctrl+Left_arrow or Ctrl+Right_arrow in bash, I move backward a "word" and forward a "word" respectively. I belive, this is defined in /etc/inputrc # mappings for Ctrl-left-arrow and Ctrl-...
1
vote
0answers
25 views

How to get stdout of process? [duplicate]

I started a process from the command line, but the window server died. However I see the process I started is still running. Is it possible to connect a terminal to the process to see its output? ...
8
votes
3answers
5k views

How do I permanently change the console TTY font type so it holds after reboot?

I'm running Ubuntu 15.04 64-bit Desktop Edition (A Debian based Linux). I used sudo dpkg-reconfigure console-setup from the command line to change the default console font type to Terminus. ...
2
votes
1answer
626 views

Python now thinks arguments are files: Broken emerge, pip, livestreamer and most tools using Python

For these commands (in both bash and fish): sudo emerge eix emerge eix I get this error: usage: emerge [-h] [--version] [input [input ...]] emerge: error: argument input: can't open 'eix': [Errno ...
4
votes
1answer
150 views

Print out unicode values of stdin?

I use od to print me the octal or hex of a file/stdin/string. This lets me see the ASCII, or UTF-8 encoded, values of my stdin. But we don't live in ASCIIland anymore. Is there any command that will ...
1
vote
2answers
321 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 ...
1
vote
1answer
234 views

Feeding audio from microphone live into python

Well, so I was reading about this raspberry pi tutorial that makes you play audio files from raspberry pi and stream them into a FM signal and something got me curious. You can stream .wav files, ...
2
votes
1answer
247 views

How do I punch a hole (FALLOC_FL_PUNCH_HOLE) in a file from command line?

There is fallocate(2) system call to make sparse files by erasing a "holes" in them. Is there a command line tool for it? Expecting something like: makehole myfile.dat --offset=10G --length=1G
0
votes
1answer
88 views

How can I add default command line parameters to an executable in a way that will also work on GUI apps? [duplicate]

I want to pass a command line program by default when I run it. myprog --foo=bar The solution I could think of was to add a custom "myprog" wrapper to my "bin" folder #! /bin/sh /usr/bin/myprog --...
-2
votes
2answers
107 views

Change file name in different path [duplicate]

I would like to know how to rename the same log file which is in different path. I mean, the log file is in /main/rel/1.2, /main/rel/1.3, /main/rel/1.4, /main/rel/1.5 etc. I want just do it from /main/...
2
votes
2answers
960 views

How to compare strings in two files

I have two text files, one file contains entries such as Id Value 1 apple 2 orange 3 mango 4 banana 5 strawberry 6 papaya In other ...
13
votes
6answers
3k views

What is the difference between find . and find . -print

What is the difference between: find . and find . -print What does -print actually do? $ find . . ./hello.txt ./hello ./hello/txt ./hello/hello2 ./hello/hello2/hello3 ./hello/hello2/hello3/txt ....
3
votes
3answers
48 views

Is there any way to edit pipes while a process is running?

I sometimes work with processes that: Are slow to start up Run for a while Log a lot of information to standard out For instance, imagine that this is a large web application. Now suppose that, ...
4
votes
3answers
485 views

Adding vertical space after command in bash

How to add vertical space after each command in bash? Looking for a wee bit of vertical space, not a full line. 1/4 or 1/3 of the line height should do it. [edit] The space to add is only after the ...
1
vote
1answer
347 views

How to tell the sizes of files and folders, sorted, and in MB, GB, instead of a long integer? [duplicate]

On a Mac, using Bash, I tend to do du -sh * to tell the sizes of files and folders in the current directory, in MB and GB. But if I want to sort them by the sizes, I might do du -sh * | sort -g ...
0
votes
0answers
275 views

Configure ldap client without yast

I'm configuring an LDAP client in a large number of Suse servers. The only way that I know to do this is using Yast, and this way is slow. I can't find another way. Anyone know another way to do this?...
2
votes
1answer
80 views

Is it Possible to globally set the java hs_err log Location?

I know when executing a jar using the command line option -XX:ErrorFile=[location] allows you to change where the hs_err log files are placed. I am wondering: is there is a place I can globally ...
1
vote
0answers
275 views

Program like vnStat that filters for only external (Internet) traffic

I've been using vnStat to monitor the ethernet interface on a Linux computer, but found that it includes all local traffic. I do many file transfers from within the subnet which far exceeds the ...
1
vote
1answer
336 views

How to change configuration of detox (dash instead underscore)?

I found, best to this moment, a solution when changing all those annoying filenames in large quantities, making them readable and easier to manipulate with in command-line. So I found, among many ...
2
votes
1answer
117 views

Updatedb unrecognized option '--localpaths='

I am attempting to update a single directory I created. I'm using updatedb so it will be found by the locate command. Command used: updatedb --localpaths='/frodo/lib/modules/3.12.3-031203-generic/...
3
votes
0answers
2k views

Can't login via telnet in ddwrt

I have a Gateworks laguna 2388 router with dd-wrt firmware installed in it. It was working fine till i change "http_passwd" nvram attribute. I wanted to change the web GUI password via telnet. So I ...
0
votes
0answers
91 views

Create complex installation script for Linux (Centos)

For deployment of a complex system I would like to create a script that runs all compilations and set up. I am looking for an existing product that interpret installation scenario and performs all ...
2
votes
2answers
110 views

How to redirect output from file to stdout?

I'd like to rip the titles from a bunch of word documents. All the CLI tools I've tried for converting .doc to text lose the title... but Abiword's conversion to RTF preserves it, eg: $ abiword --to=...
4
votes
4answers
659 views

Prevent tail from modifying the charset of the terminal

In a Linux terminal (CentOS) I am using the command tail --follow=name my-rolling-file.log in order to see the logs of my application. Sometimes in the log there is some binary data dumped (I dump ...
0
votes
2answers
97 views

Auto Delete Inactive files after x

Is there a way I could delete certain folders after x amount of days of inactivity? I was thinking of using cron but that wouldn't take the inactivity part into consideration. Is there any Debian ...
3
votes
3answers
1k views

Bash long string, no word splitting?

I want to tidy up some script with long commands, so that for example: { somecheck || somecomand "reallyreallyreallyreallyreallyreallylongstring" } &> /dev/null & becomes something like: ...