The tag has no wiki summary.

learn more… | top users | synonyms

40
votes
4answers
5k views

Creating diagrams in ASCII

I am looking for a program which I can use to create ASCII diagrams such these: +---------+ | | +--------------+ | NFS |--+ | ...
16
votes
3answers
20k views

How can I find out how many lines a text file contains without viewing it?

How can I find how many lines a text file contains without opening the file in an editor or a viewer application? Is there a handy Unix console command to see the number?
15
votes
11answers
13k views

Grep huge number of patterns from huge file

I have a file that's growing about 200,000 lines a day, and it is all formed with blocks of three lines as such: 1358726575123 # key Joseph Brunner # name carpenter # job ...
13
votes
6answers
5k views

Which extension to use for text files? (Unix/Linux)

I noticed that I can read text files without an extension .txt just fine. How come? Should I save these files with or without the .txt extension? Also, what about .ini files? I usually use them like ...
11
votes
4answers
435 views

How can I delete all english lines from a textfile?

I have this text file: 714 01:11:22,267 --> 01:11:27,731 Auch wenn noch viele Generationen auf einen Wechsel hoffen, Even if it takes many generations hoping for a change, 715 01:11:27,732 --> ...
10
votes
4answers
4k views

Is there some sort of PDF to text -converter?

I need PDF files to text so I can search over them in bulk from commandline. Is there some converter for Ubuntu, OBSD or similar distro? Perhaps related post, OCR with ubuntu here.
10
votes
2answers
682 views

Filter output of command by color

I am running a utility that doesn't offer a way to filter its output. Nothing in the text of the output indicates that a particular function failed but it does show in red. The output is so long that ...
10
votes
2answers
2k views

What is the ^M character called?

TexPad is creating it. I know that it is under some deadkey. I just cannot remember it is name. The blue character: I just want to mass remove them from my document. How can you type it?
9
votes
2answers
5k views

Finding all “Non-Binary” files

Is it possible to use the find command to find all the "non-binary" files in a directory? Here's the problem I'm trying to solve. I've getting an archive of files from a windows user. This archive ...
8
votes
4answers
6k views

creating a sequence of numbers, one per line in a file

Is there a way to create out of thin air, a file that is a sequence of numbers, starting at a given number, one per line? something like magic_command start 100 lines 5 > b.txt and then, b.txt ...
7
votes
2answers
449 views

Does OS X have its own line format?

Obviously there are at least two newline types: DOS and Unix. But does OS X have its own plaintext 'format'? I opened a text file in nano and was surprised to see: [ Read 26793 lines (Converted from ...
6
votes
5answers
2k views

Script to remove spaces and lowercase in file names

I am trying to write a script that will replace spaces with "-" and make all letters lower case for all files in the current directory. for x in 'ls' do if [ ! -f $x ]; then ...
6
votes
3answers
5k views

What is the purpose of -e in sed command?

I can't find any documentation about the sed -e switch, for simple replace, do I need it? e.g. sed 's/foo/bar/' VS sed -e 's/foo/bar/'
6
votes
3answers
1k views

Colorized `cat` for source and script files? [duplicate]

Possible Duplicate: How can I display syntax highlighting on a file? Is there any application like cat, but with color output? I'd like to view my files with colors like in any IDE's ...
6
votes
2answers
1k views

How to convert UTF-8 txt files to all uppercase in bash?

I have some UTF-8 .txt files which I would like to convert to all uppercase. If it was just ASCII, I could use: tr [:lower:] [:upper:] But since I'm working with diacritics and stuff, it doesn't ...
6
votes
3answers
764 views

How to replace all percent-encoded UTF-8 substrings with plain UTF-8 text?

I've got a html file with a lot of %-encoded UTF-8 text in URLs. For example "%D1%80%D0%B5%D1%81%D1%83%D1%80%D1%81%D1%8B" stands for "ресурсы" ("resources" in Russian). The task is to replace all ...
6
votes
2answers
206 views

Copy a long single-line text from a terminal with undesired change-line

locate ... | less outputs a long path, which is shown as several lines in the terminal, although it is actually a single line. I copy the path from the terminal by selecting the text with mouse and ...
5
votes
4answers
793 views

Look for English word in a file via terminal

How to find and print out English words contained in a file via linux command line?
5
votes
1answer
407 views

How to remove all instances of a particular symbol from a text file?

I've got a huge (about half a GiB, impossible to use a usual text editor on) CSV file with fields enclosed in double quotes like "abc","def" but need a file without quotes (I am sure this is not going ...
5
votes
1answer
241 views

Cannot cat or grep contents of file

I'm on Debian Jessie. When I open a new textfile with mousepad and save it, then modify it with vim and save it again, I cannot print or grep the contents of it anymore. If I do cat file, nothing is ...
5
votes
2answers
99 views

Get “Text Content” of Files

I was wondering if there is a tool to scrape text content of a file. Basically I would like to put in a pdf, word document, compressed file or anything else and get the text it contains out. There ...
5
votes
1answer
698 views

Converting .docx files to plain text and preserving line breaks to maintain line number references to source document: howto & implications?

I'm exporting MS Word content to plain text for use with text&file utilities. I have a constraint where the line numbering feature has been enabled in the MS software, and any reference to line ...
5
votes
1answer
235 views

Synonyms (from a thesaurus) in Emacs

I use Emacs 23 on Debian sid. I can check the spelling of a word in Emacs with M-$. How can I obtain synonyms (using a thesaurus?) for a word in Emacs? None of the following were useful: one, two, ...
5
votes
1answer
274 views

How to fix xdg-mime for text formats

My xdg-mime makes mistakes. It recognizes an .html file containing Java code as a C++ file. I don't quite know the internal mechanism of xdg (eg. how it determines filetype). And I want to know how ...
4
votes
6answers
510 views

Extract lines based on words on position, not column

I have a file like this: v ATOM 57 O LYS A 7 2.254 25.484 18.942 1.00 14.46 ATOM 77 NH1AARG A 8 5.557 19.204 13.388 0.55 24.50 TER 1648 ...
4
votes
4answers
131 views

Insert new lines with missing values (NA)

I would like to insert new lines in text files if there are missing values. I have for example the following text file (A.txt), for which line 5 is missing. In addition, as the file should have 12 ...
4
votes
2answers
2k views

Character count in Unix wc command

When I give wc command on a file with contents given below, it gives the number of characters as 30. Does it include the end of file character? Since including the space and newline there are only 29 ...
4
votes
5answers
2k views

extract fields from “tail -f” of a syslog stream

Example line from syslog file: Aug 1 10:25:50 10.10.10.1 id=firewall sn=XXXX time="2012-08-01 14:35:18 UTC" fw=x.x.x.x pri=6 c=1024 m=537 msg="Connection Closed" f=11 n=195273698 ...
4
votes
1answer
145 views

Why isn't there a djvu2text?

This has been bothering me for a while. .djvu files are often searchable, in my experience. So somewhere in there, all the text is just one big string, right? But there's no djvu2text program. And ...
4
votes
3answers
647 views

How to know if a text file is a subset of another

I am trying to find a way to predict if a text file is a subset of another.. For example: foo bar is a subset of foo bar pluto While: foo pluto and foo bar are not one a subset of each ...
4
votes
2answers
957 views

Is there something like a lorem ipsum generator?

Is there something like a 'lorem ipsum generator'? I know it exists in Latex, and even in LibreOffice, but I'm looking for a terminal command. I would like to type something like loremipsum 10 ...
4
votes
2answers
47 views

More shell scripts than one in one text file?

I am learning shell scripting for my introductory UNIX course at my university, and I`m curious if is it possible to have more than one shell script in one text file. What I mean by that is, for ...
4
votes
1answer
198 views

Right-align comments in vim

I'm writing C code using vim and are searching for a possibility to right-align my comments so that they all end at col 80. To give a short example: int a = 80; /* initialize a */ int b = 7; /* ...
4
votes
3answers
627 views

How to skip file in sed if it contains regex?

I currently use the following simplified command to remove trailing whitespace and add a newline at end of file where needed: find . -type f -exec sed -i -e 's/[ \t]\+\(\r\?\)$/\1/;$a\' {} \+ As ...
4
votes
1answer
2k views

Replace variable read from a text file (so they can be interpreted)

I tried several stuff with not luck so maybe one of you experts can help me (I hope!). I want to store in a text file some select statement that contain variables like a date: $ cat res.txt select ...
4
votes
2answers
81 views

Verify line endings from a text created by perl script

I am interested in seeing the contents of a text file in hex mode. I have tried :%!xxd and the problem is that I can not really understand which hex code represents each letter e.g. when you use an ...
4
votes
1answer
156 views

Is there a Unix command that searches for similar strings, based mostly on how they sound when spoken?

I have a file of names, and I want to search within it, not caring too much about whether I have spelled the name ( that I am searching for ) correctly. I know that grep has quite a bit of ...
4
votes
0answers
121 views

Mint 13 bug that prevents right clicking on desktop icons and numerous other symptoms

I use Mint 13 with Gnome Shell 3.4. For the last month or two I have had an issue that randomly occurs, and once it does only logging out or rebooting fixes it. I randomly have a problem that causes ...
3
votes
3answers
187 views

Transforming text to tabular form

I have a text file with the following structure: aaa bbb ccc ddd eee fff 1 2 3 4 5 6 1.1 1.2 1.3 1.4 1.5 1.6 ggg hhh iii jjj kkk lll 7 8 9 10 11 12 2.1 2.2 2.3 2.4 2.5 2.6 and I want the ...
3
votes
3answers
181 views

display filename followed by content without interaction

My program writes it state to few files every 30 seconds or so (overwrites) and I would like to look at them with the filenames displayed like "more" does. Like: $ echo 1234 > test00 $ echo 5678 ...
3
votes
5answers
232 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 ...
3
votes
2answers
3k views

AWK-Find maximum value in a row & print with header

I need to read a file, find the maximum value in each row, and print the ID of the row, the column the maximum value came from (sno#), and the value from the associated lc# column. If the maximum ...
3
votes
2answers
212 views

How to bury an invisible mark into lines of text?

How can I bury an invisible mark into random lines of text? Such a mark has to be there, though it will be invisible to someone reading that text printed out on the console. I want to identify those ...
3
votes
4answers
1k views

how to word wrap, align text like the output of man?

what is the command that word wraps and justifies a text file so that the output looks like that of a man page: All of these system calls are used to wait for state changes in a child ...
3
votes
2answers
2k views

Keyboard Shortcut To Send Text Strings To Program

How can I configure a shortcut key to send a text string to the current program? The purpose is to type common entries quicker (email address, street address, phone number, username, favorite quote, ...
3
votes
1answer
124 views

Copying clipboard-content to file automatically and continiously?

I need to make a list of some links on a web-page. I've been using right-click copy link URL and then pasting it (Menu_Edit->Paste) into vim running in xterm -- then repeating. This is obviously a ...
3
votes
1answer
154 views

Read the files in shell script doesn't print out anything?

I am trying to read a file from shell script line by line. Below is my file content - hello=world And below is my shell script that I have written - #!/bin/bash while read -r line; do ...
3
votes
1answer
89 views

How do I view cp1251 text file in UTF-8 console?

Attempt 1: $ less subs.srt "subs.srt" may be a binary file. See it anyway? <C8><F2><E0><EB><FC><FF><ED> ... Attempt 2: $ LANG=ru_RU.CP1251 less subs.srt ...
3
votes
1answer
271 views

Is the last new line on fstab important?

What happens if the last line of fstab is not terminated by a newline? Why do people get a warning when that last line is not terminated by a newline?
3
votes
1answer
102 views

Preventing mid-word line breaks in a2ps

So I understand that a2ps is mostly for converting ASCII code to postscript for printing, but occasionally I like to print a .txt or .md file for school. Often, an entire sentence (or even a ...