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

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5
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2answers
3k views

Is there a unix command line tool that can analyze font files?

Given a directory of font files (TTF and OTF) I'd like to inspect each font and determine what style (regular, italic, bold, bold-italic) it is. Is there a command line tool for unix flavored ...
2
votes
5answers
1k views

Listing files greater than particular timestamp in file name?

I have a directory in linux which has a list of log files where log files get auto generated if some job runs. Each log file gets appended with the timestamp like "JobName_TimeStamp" UPDATED: ...
0
votes
1answer
258 views

Mount a dropbox directory without installing the dropbox application

This is most likely to be a duplicate question, but I could not find a simple answer for my problem. My situation is as follows: I have multiple accounts on different computing clusters. I want to ...
1
vote
0answers
220 views

Changing KDE's mouse theme and buttons settings from a shell script

I'm trying left handed mousing, and I want to be able to easily switch between right handed mode and left handed mode. There is a utility for Windows called SwapMouseButtons that allows to bind a key ...
14
votes
1answer
314 views

Is there a way to search manpages for typical use scenario?

I have a relatively small brain, so there is a limit to what I can store up there. I have been using Linux semi-pro-amateur for a few years and still I am amazed at how little commands I know. Simple ...
3
votes
1answer
135 views

How does SSH display the message “The authenticity of host .. can't be established”?

I wanted to trace down the system call used by ssh to output this warning message: > ssh root@abcde The authenticity of host .. can't be established. If the message were sent to stderr or ...
0
votes
2answers
554 views

Unable to telnet public ip on port 80

We are facing a communication problem between the public and our private network. We have a Linux based web server behind a firewall and an internet router. As part of some integration, our web portal ...
7
votes
4answers
149 views

Is there a tool for summarizing what all commands do?

So I understand that there are man pages for getting the documentation when the internet is unavailable, or when you need advanced uses, but what if I'm offline and I don't even know what tool I need ...
5
votes
1answer
889 views

Command line to burn DVD+R DL media on Linux?

A Plextor PX-750A on a Linux system has made many DVD+R DL coasters while trying to burn an 8GB DVD .iso file with growisofs and the Schilling cdrecord program. I tried growisofs first: growisofs ...
3
votes
2answers
914 views

Trying to run oprofile on ubuntu kernel but cannot find vmlinux file

I am trying to run oprofile on my ubuntu host but cannot find the vmlinux file. The set up sfor oprofile needs this file: As given here : ...
2
votes
1answer
3k views

How to monitor other nodes to get RSSI?

I need to measure RSSI between two peers of nodes in same network. If I have these two information: SSID for their network. IP for the target node to get the RSSI regarding it. So I found this ...
17
votes
2answers
44k views

How to display open file descriptors but not using lsof command

Hi I have read Here that lsof is not an accurate way of getting the number of File Descriptors that are currently open. He recommended to use this command instead cat /proc/sys/fs/file-nr While ...
1
vote
1answer
61 views

With mv, possible to put a time dependence on files mv'ed?

Let's say there's a specific time and date I have in mind. All files last edited before this date I want to keep in the directory but all files that have been edited since this date I want to mv ...
3
votes
4answers
9k views

CentOS 6 - nameserver entry in resolve.conf resetting after restarting network services?

In /etc/resolv.conf, I've changed the nameserver line to a new IP address. After saving and exiting, I run service network restart. I then go open /etc/resolve.conf again and see that the IP address ...
3
votes
1answer
532 views

Getting a list of WiFi networks nearby when the adapter is in AP mode

I am trying to get a list of wireless networks nearby while the adapter is acting as an access point but iwlist returns the following error: $ sudo iwlist wlan0 scan wlan0 Interface doesn't ...
3
votes
2answers
1k views

show entered new password in unix “passwd” command

Is is possible to run the passwd command with an option to show the newly entered passwords? By default it doesn't show what I type and I don't want this. [dave@hal9000 ~]$ passwd Changing password ...
2
votes
3answers
971 views

Change character position with sed

The file contains: dateutkfilename25012009 I want to change the position of character 16th to 17th with 18th to 19th. And then change position of character 16th to 19th with 20th to 23rd... so it ...
1
vote
1answer
148 views

How to modify rngd's default command line?

I need to perform the following... rngd's default command line should be modified to add --no-tpm=1 rngd is a daemon that feeds data from a random number generator to the kernel's random ...
2
votes
1answer
135 views

Play a sound file slower or faster

How can you play a sound slower or faster? That would be useful for listening carefully one audio passage or to listen fast forward to find a concrete passage. Is there something with the play sox ...
1
vote
3answers
104 views

How do I shutdown the system after a particular process exits

I am downloading some software; I can see the pid of the download process with top. Let's say it's 1001. How can I make it so that my computer shuts down after process 1001 exits?
2
votes
1answer
87 views

Is there a command which creates a temporary file containing the arguments passed to it?

I can paste the contents of a file into a command using cat and backticks: ls `cat filenames` Is there a way to do the reverse - to turn a string into a (temporary) filename? gcc -o cpuburn `uncat ...
1
vote
1answer
188 views

Displaying server information at login prompt (Ubuntu)

I'm wondering if there's a way to customize the Ubuntu server login prompt. Currently it shows the following: Ubuntu 13.10 fw tty1 fw login: _ I know there's /etc/motd for the message of the day, ...
2
votes
1answer
67 views

How can I partition and format my disk to an accuracy of “LBA” by commands?

How can I partition /dev/sdb into /dev/sdb1 and /dev/sdb2, and then format /dev/sdb1 to exFAT ( or FAT32 ) from LBA=1 to 2097152 by commands? ( LBA=0 is reserved for MBR )
2
votes
1answer
281 views

Simpler processing of shell script options

I'm looking for way to process shell script arguments that is cleaner and more "self documenting" than getopt/getopts. It would need to provide... Full support of long options with or without a ...
1
vote
3answers
489 views

Automatically printing images with added captions

I have a lot of scanned images and images/photos I'm working on with multiple versions. When I print them (using various programs), all I get is the image and, often, it's difficult to tell which ...
1
vote
1answer
54 views

backup kmail in command prompt

How to take kmail backup mails from command mode as GUI mode got crashed in fedora12? Found the location of mails, But how to take backup to another system to configure?
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vote
3answers
742 views

How to return from root log-in to my user log-in?

I'm using SuSE Linux Enterprise and I know that there is a command su root for changing to root log-in. But what about the other way around? If I prefer to return to my user account, how to do it? ...
0
votes
1answer
50 views

Set alias which doesn't send specified text? [closed]

EDIT I set a alias task in ~/.bashrc. The following: alias join="clear; screen -ls; screen -rx [<ID_OF_THE_RUNNING_SCREEN> quit]" If i the task join is executed, the following has to ...
0
votes
1answer
1k views

Proxy server with authentication not working at command line

I'm running Debian 6 in a VM on a network that requires Windows authentication to a proxy server before it can run any http/https/ftp connection. I've tried: export ...
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0answers
97 views

Error mounting shared folder for KVM Solaris guest

Followed this guide on how to set up a shared folder between a KVM Host(Ubuntu 12.04) and Guest (Solaris 10 Sparc). On the last part of the it requires you to mount the shared folder and typed in this ...
0
votes
1answer
216 views

Nagios : How to monitor windows host from linux “by command line”?

I need help to monitor windows host using command line in Nagios. As we can monitor Remote Linux host by NRPE (check_nrpe)using command line as : /usr/local/nagios/check_nrpe -H localhost -c ...
4
votes
1answer
1k views

Crop SVG drawing to canvas size in command line

I have SVG images produced by PlantUML, which has some parts of drawing outside of canvas. It makes it difficult to use such images and I need to crop drawing to canvas size. As I produce UML diagrams ...
1
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0answers
26 views

Is there a way to execute the second-to-last command that started with a given string? [duplicate]

In a project with different makefiles: $ make -f foo1.make ... ... $ testing testing ... ... $ !ma make -f foo1.make Good! But then if I by accident do: $ make -f foo1.make ... ... $ testing ...
2
votes
1answer
167 views

Move extension-less files with mv

I have a folder with images(png, bmp, jpg) and extension-less files. I cant figure out how to move only the extension-less files. They are all random numbered files.
2
votes
2answers
2k views

Unable to remove the files from an usb drive (neither by dd /dev/zero nor by rm -r)

I have a flash usb drive and up till now it has worked well. Recently I recorded iso to it using dd. Now I want to delete it. $ lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT ....... sdb ...
4
votes
3answers
2k views

Automate login with sudo and su

I know the security risks, but I am performing this experiment/exercise on an old, seldom used *nix machine I have laying around the house. So doing this exercise will not bring any security risk to ...
2
votes
2answers
95 views

A combination of uniq and agrep?

I have a file full of long SQL queries, one per line. I need to create a list of unique queries, but most of the queries include parameter values that make using an exact matching tool like uniq ...
0
votes
0answers
187 views

Strange message at Debian login. What does it mean?

In an attempt to learn more on the command-line I added Debian-7.4-Standard to my Acer-Aspire-One laptop. I am not sure as to what I did exactly, but after I managed to install the non-free firmware ...
5
votes
2answers
2k views

“tree” command output with “pure” (7-bit) ASCII output

The "tree" command uses nice box-drawing characters to show the tree but I want to use the output in a "code-page-neutral" context (I know that really there's always a code page, but by restricting it ...
5
votes
7answers
547 views

Can I avoid enter key in cp -i?

I often need to selectively archive a long list of files using cp -iar, or similar, and to speed up the process I would like to press just one key instead of y or n followed by ENTER on every file. In ...
3
votes
3answers
136 views

stout can not append to large files

I have Ubuntu 13.10. I have a keylogger to help me remember what I did. Running keylogger prints output to the terminal when I run it like this: keylogger I added it to startup like this: ...
0
votes
1answer
219 views

Launch Picasa under CrunchBang Waldorf

I succesfully installed Picasa 3.9 under Crunchbang following this webupd8-tutorial. I also installed libwine-cms:i386. Everything works well and Picasa launches after installation. The problem: once ...
3
votes
1answer
289 views

Specify MIME type to CUPS's lpr command

It seems when you pass a file to lpr (or pipe to it), it attempts to guess the MIME type. Sometimes, however, it guesses wrong—and then attempts to print something "interesting" at best. Is there a ...
4
votes
3answers
2k views

How is bc different from dc?

What are the differences between dc and bc calculators? When should I use dc and when bc?
1
vote
3answers
133 views

Convert a date format

I have one problem with my date format. I want to change from one format to the other and vice verse. My date formats are: Format1 : 1/24/2014 Format2 : Jan 24 How can I do this?
17
votes
6answers
2k views

Why do I have to cd out of a deleted directory?

On my server I have a directory structure looking something like this: /myproject/code I normally have an ssh connection to the server and 'stand' in that directory: root@machine:/myproject/code# ...
3
votes
1answer
288 views

Strange error (?) when I run `man` command from a folder that no longer exists

Let's have a look at the followings: radu@Radu:~$ mkdir test radu@Radu:~$ cd test radu@Radu:~/test$ rmdir ~/test radu@Radu:~/test$ man ls man: can't change directory to '': No such file or directory ...
1
vote
2answers
4k views

How to unpack a downloaded tar.bz2 archive?

I downloaded YOONO-Desktop from http://www.yoono.com/, and I try to install it with the following steps: [root@localhost mpatil]# tar xfv yoono-destop-1.8.43.tar tar: yoono-destop-1.8.43.tar: Cannot ...
3
votes
5answers
247 views

How to prepend a particular text file contents to every text file in a directory and its subdirectories?

I hate to clutter my source code files with licensing/attribution comments but some times it is a requirement. So having dozens of source code files (organized in a tree of subdirectories) written I ...
8
votes
3answers
1k views

How can I cd to the previous/next sibling directory?

I often have a project directory layout like this project `-- component-a | `-- files... `-- component-b | `-- files... `-- component-c `-- files... I'll usually be working in one of the ...