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

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Chkconfig on Linux Mint 12 giving tons of errors

I'm trying to disable some services from starting at boot time on my Linux Mint 12 laptop. So I installed chkconfig, which has worked great for me before on Fedora. However, on Linux Mint 12, it gives ...
9
votes
2answers
8k views

command line tool to remove selected tags from mp3 files

Using MP3 Diags to clean up my mp3 collection, I've discovered that in addition to the ID3v2 tag, some files also have a Lyrics3, ID3v1, and some an APE tag. Are there command line tools out there to ...
1
vote
1answer
5k views

Is there a command line utility that copy files with progress information? [duplicate]

Possible Duplicate: move files with progress bar cp gets the job done but it would be nice if it had a little more feedback. Are there any utilities out there that do this? Personally, my ...
0
votes
1answer
413 views

Run a script after some command were executed

I have a list of scripts ./myscript <param> | grep "asd" ./myotherscript <param> <param> > file ... How can I automaticaly run another script when one of these command in the ...
7
votes
2answers
4k views

Is there any command-line, generic HTTP proxy (like Squid)?

I can easily use Netcat (or, Socat) to capture traffic between my browser and a specific host:port. But for Linux, does there exist any command-line counterpart of a Squid-like HTTP proxy that I can ...
5
votes
2answers
7k views

pdf viewer for command line only

Is it possible to view pdf documents without having gdm (or similar) running? Rationale: I'm working on a remote server (assume no X forwarding) processing some data, creating some plots (assume pdf ...
1
vote
1answer
2k views

How to open a local URL (webpage) on the command line

On MacOS X I can run open /some/path/index.html and this would open the page index.html with the default software that handles .html files. Is there something similar on Ubuntu Linux? I have used ...
2
votes
1answer
189 views

Illustrate the difference of two squares via the command line

So, after 10 years of wanting to study the book that Ramanujan relied upon for a lot of his early strides in mathematics, it's 2012, and the book is finally online. To celebrate, I want to go through ...
5
votes
2answers
3k views

Passing a bash command-line argument containing a dot

How can a command-line argument containing a dot (.) be passed? Are there any escape sequences for capturing characters like dot? The following invocation of a bash-script from the shell does not ...
3
votes
1answer
1k views

Searching a file & excluding lines with a specified string

I have a large log file that contains numerous lines of the same entry, lets call it "repeat-info". As an example here is what a portion of the log might look like: [Timestamp] repeat-info [Timestamp]...
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votes
4answers
3k views

Best method to collect a random sample from a collection of files

Suppose there is a directory holding 300 data files. I want to randomly select 200 of those files and move them into another directory. Is there a way to do that under Unix/Linux?
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2answers
1k views

How to search for files by size and extension ?

I want to delete all empty files with a particular extension from a directory and all its subdirectories.
4
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3answers
4k views

Removing apostrophe from all file names

I tried to remove apostrophe from all files' names in the directory. for i in *; do mv $i `echo $i | tr -d "'"`; done After executing this command nothing is renamed. Do you know what's wrong here?...
3
votes
2answers
9k views

Batch copying/moving files in unix?

Is there a way to batch copy/move files in unix? I thought it might be an option for cp/mv but I can't find any way to do it.
12
votes
2answers
337 views

`test` and `[` - different binaries, any difference?

I noticed while answering another question that test and [ are different binaries, but the [ manpage pulls up test's. Besides the requirement for an ending ], is there any difference? If not, why are ...
51
votes
3answers
3k views

Why is `--human-readable` needed and not default?

Several command line tools use the -h or --human-readable option to print file size in a human readable format (i.e., 36G vs 37550836). Why is this option needed and not the default? Aren't these ...
0
votes
1answer
2k views

How to pkill from a script?

How can I write a script that basically just runs pkill -HUP inetd? I want to restart inetd via a script so I can schedule it to run at a particular time. I tried to write it myself, but I'm getting a ...
3
votes
3answers
636 views

Regarding separate a single file into multiple files according to line separation

Currently, I have a plain text file, A, such as lowest priority very high significance. outstanding very novel In this file, every line contains a sentence. I want to separate this file into ...
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vote
1answer
1k views

How to change the default line length for od and hexdump

Is there any way to change the default line length for the od and hexdump commands? Can't see anything apropriate in the man pages.
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2answers
1k views

What is a simple way to schedule a single event to happen at some time in the future?

There are often times that I want my computer to do a single task, but not right now. For example, I could have it notify me in 30 minutes that it is time to leave work. Or maybe I want it to run a ...
4
votes
1answer
11k views

How to get exact file size and file name?

Right now I am using ls -lt /my/directory (see below) then php parses the output. But inconsistently because the delimiter is space and there might be two or more spaces in between two fields. The ...
3
votes
4answers
5k views

Renaming files works, but soft links point to the old names. How can I fix that?

For example, I'm renaming many files inside a tree like this: [bash]$ for file in `find . -name "*gsf*"`; do `mv $file ${file/gsf/msf}`; done That renames all the instances of "gsf" in file names ...
6
votes
2answers
4k views

How do I create a ZIP archive that preserves only the structure of the target directory and below?

I need to create a zip archive where the unzipped result preserves the directory structure from the specified directory down. I also need to do this without actually switching to the directory. My ...
2
votes
1answer
2k views

How to format a curl command for a special task?

There is a search page in a form http://site.com/search.php and it sends a search query via POST request. I want to fetch this request via curl command line tool to inspect a POST request. The HTML ...
1
vote
1answer
2k views

What does @ sign mean in 'ls' output on Mac OSX Lion terminal? [duplicate]

Possible Duplicate: what does the @ mean in ls -l? What does the @ sign mean in the following "ls" output? -rw-r--r--@ 1 root wheel 489 Jan 4 13:14 boot.plist
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votes
3answers
3k views

How to install/default to the command line version of Emacs?

I installed Emacs using sudo apt-get install emacs. The problem is that when I launch Emacs from the command line (e.g. emacs main.c) it opens Emacs with a GUI. I prefer the command line version which ...
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votes
3answers
2k views

command line audio with mpg123 - how to save position in audio and begin from that location next time?

I am contemplating using mpg123 as an audiobook player. I can't find any other good audiobook players for Linux, and I think mpg123 may be my best option. My audiobooks are organized by directories ...
3
votes
3answers
914 views

Unique file name for different files

I'm working with graphic design. I've downloaded many files (EPS files, PSD files, etc) from various websites. Because it come from various websites, after downloaded from more than 10 different ...
2
votes
2answers
3k views

regex replace text in xml file within node from the command line

I have an XML file and I would like to replace everything that is between the open and closing tag within multiple instances of the g:gtin node with nothing. Is this possible from the command line, ...
1
vote
1answer
28 views

How reliable of using “nameofmychoice=”anyname“”

For backup MySQL MyISAM database, I'm using: backupdb=siteone mysqldump -u root -pthepass --lock-tables --add-locks --disable-keys --skip-extended-insert --quick $backupdb > /var/www/html/db2.sql ...
2
votes
1answer
3k views

Sending HTML with Mutt (or another terminal mail client)

While I can find some scattered info on the topic, I can't seem to find a straight walkthrough (or even a definite answer)... Basically I'm too low on the totem pole to start sending plain-text e-...
1
vote
1answer
515 views

Unable to kill sar process

I have a shell script to run JMeter test. Script generates the Jmeter log out put and creates sar (suppose to create sar file though it does not). Shell script is - runtest() { export JMETER_HOME=/...
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votes
3answers
3k views

How can I expand a relative path at the command line, with tab completion?

In bash is there any way to expand a relative path into an absolute path, perhaps with tab completion? I ask because sometimes I will search for a file, find it, then vim it: cd /etc cd apache2 cd ...
1
vote
1answer
489 views

Command-line way of send pinging

I have lots of Drupal powered website. Each of the website has Multiping module to pinging ping server. Is there any way of send pinging through command-line? I hope I can build dedicated server for ...
7
votes
2answers
552 views

Command-line software for playlist syncing to Android Phone?

I'm looking for a way to sync music to my Android Phone without having to load something like banshee. I know there are plenty of ways to sync files, but I'm interested in syncing playlists and having ...
5
votes
1answer
2k views

How to create a confirmation question in Linux?

I have a certain command (git push server-name) that has major consequences. How to require confirmation for this command only? It should ignore white space. The confirmation could be Enter 'yes i am ...
0
votes
2answers
630 views

Functional shell scripting [closed]

I found out that when I want to create some shell script or advanced command it always made me trouble to remember the names of the commands and their switches. e.g. tr -d '\n' < file | wc -c ...
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votes
8answers
4k views

How to give a normal user permission to change root password

Please do not ask why, but is it possible to do it? p/s: I know it's not a good thing, let's just say someone from the top management who is computer illiterate want some sort of control over the ...
0
votes
2answers
154 views

How to act on output from a failed command [duplicate]

Possible Duplicate: What is the easiest way to execute text from tail at the command line? I was guessing the ouput of a command that fails to execute should be sent to stdout and hence can be ...
10
votes
4answers
894 views

What is the easiest way to execute text from tail at the command line?

Sometimes I'm working on a new (ubuntu) box and I type git and am alerted: The program 'git' is currently not installed. You can install it by typing: apt-get install git-core If that happens I ...
1
vote
0answers
376 views

ffmpeg: error while running with libx264

Main code: ffmpeg -i 2269801.avi -threads 0 -vcodec libx264 -b 900k -acodec libfaac -ar 44100 -ab 96k -ac 2 earthgirlsareeasy1.mp4 [libx264 @ 0x16cdde10]broken ffmpeg default settings detected [...
1
vote
3answers
219 views

how to forbid a command without a permission

I intended to delete all the backup files in a directory, so I was going to type rm *~ in the terminal. Unfortunately, I hit the Enter before hitting the tilde and unhappy things happened. Although, I'...
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vote
0answers
285 views

i386 libtool conflicting with x86_64 libtool when installing Handbrake

I've been trying to install Handbrake on centos 5.8 with the help of some different guides. I'm running x86_64, and whenever I try to install packages necessary to build the binary, the arch ends up ...
8
votes
1answer
904 views

Home key acting strange in bash (tty and X) on long input strings

When I hit Home if my current input is short enough (say, <36 characters), it works fine. However, when I've typed a longer command and then want to go back to the beginning, it seems like it does ...
4
votes
1answer
237 views

How can I act on the results of the “locate” command?

I'm trying to find where check_dns is defined in nagios' commands.cfg file, although there are quite a few files. I know I could run something like find / -name "command.cfg" -exec grep check_dns {} \...
0
votes
1answer
456 views

Postgres 9.0 linux command to windows command conversion [closed]

i am working on an application using delphi 7 as the front end and postgres 9.0 as the back end. I have to upload images to the server so i use \lo_import and \lo_export for inserting images on the ...
2
votes
2answers
390 views

Shell Prompt Customization? [closed]

I have used oh_my_zsh (and tinkered with bash_it) on multiple systems and have generally been happy with it, though I hate it's auto-correction feature and generally turn it off. My usual shell is ...
7
votes
2answers
4k views

Number of backslashes needed for escaping regex backslash on the command-line

I recently had trouble with some regex on the command-line, and found that for matching a backslash, different numbers of characters can be used. This number depends on the quoting used for the regex (...
5
votes
3answers
4k views

How can I get the netmask from an IP address?

How do I get a netmask from the IP address? Is there a command to get it?
1
vote
3answers
6k views