Reversing text order of each line of a file in UNIX
My input is:
And I want the output to be:
I found an earlier response to a similar question but it was not accurate as it required a certain string length for each line
If I have string { I_love_shell_scripts}
anyone knows how to have output {stpircs_llehs_evol_I}
by using shell and perl ?I know in perl, there is reverse() funcation, but
can it be done by not using reverse()? (3 Replies)
Im trying to develop a shell script that will change the content order of the file.
For example I have a file that says
a
b
c
d
I want to change this to be
d
c
b
a
Im trying to use sed to this by reading the file and then inserting each line at the top
#!/usr/bin/ksh
... (3 Replies)
Hi,
I could not find this anywhere and I am wondering if someone knows a quick way of doing this.
So heres the problem... I have a row that looks like this (an example):
5 4 3 2 1
What I want to do is reverse it so it looks like this:
1 2 3 4 5
Does anyone know the simple unix... (7 Replies)
how can i reverse the line order in text files?
(but total number of the lines is not constant )
for example i have a file like this:
line1
line2
line3
.
.
lineN
i wantto make it like this:
lineN
.
.
.
line3 (26 Replies)
Hi,
I have a file that looks like this (tab seperated):
read - DFHJ
read1 - IOPE
read2 + AAAB
read3 + MMMN
Basically what i want to do is reverse column 3 if column 2 has a - but leave it if its +
so the output would look like this:
read - JHFD
read1 - EPOI
read2 + AAAB... (3 Replies)
Hello, I am new to awk and I was wandering if I could reverse line and word order from a text file using awk. I figured out how to do them both separately, but can't quite figure out how to mix them.
Example:
Input file:
dog cat mouse
1 2 3
I am new to awk
Output of the awk program:... (3 Replies)
I have a text file where I want to append a column of numbers in ascending orders.
Input:
57 abc
25 def
32 ghi
54 jkl
Output:57 abc
57 abc 1
25 def 2
32 ghi 3
54 jkl 4
How do I go about doing that? Thanks! (11 Replies)
Hmmm I think I found the correct subforum to ask my question...
I have some text files that I prepared in vi some time ago, and now I want to open and edit them with Windows Notepad. I don't have a Unix terminal at the moment so I need to do the conversion in Windows. Is there a way to do this?... (1 Reply)
Hi all,
I have some text files that I prepared in vi some time ago, and now I want to open and edit them with Windows Notepad. I don't have a Unix terminal at the moment so I need to do the conversion in Windows. Is there a way to do this? Or just reinsert thousands of line breaks again :eek: ? (2 Replies)
i have a text file as belows, it includes 2 columns, 1st is the column name, 2nd is the file_name
data_file.txt
column_name file_name
col1 file1
col2 file2
col3 file1
col4 file1
col5 file2
now, i would like to... (4 Replies)
Discussion started by: tester111
4 Replies
LEARN ABOUT DEBIAN
pdf2txt
PDF2TXT(1) PDFMiner Manual PDF2TXT(1)NAME
pdf2txt - extracts text contents of PDF files
SYNOPSIS
pdf2txt [option...] file...
DESCRIPTION
pdf2txt extracts text contents from a PDF file. It extracts all the text that is to be rendered programmatically, i.e. text represented as
ASCII or Unicode strings. It cannot recognize text drawn as images that would require optical character recognition. It also extracts the
corresponding locations, font names, font sizes, writing direction (horizontal or vertical) for each text portion. You need to provide a
password for protected PDF documents when its access is restricted. You cannot extract any text from a PDF document which does not have
extraction permission.
OPTIONS -o file
Specifies the output file name. The default is to print the extracted contents to standand output in text format.
-p pageno[,pageno,...]
Specifies the comma-separated list of the page numbers to be extracted. Page numbers start at one. By default, it extracts text from
all the pages.
-c codec
Specifies the output codec.
-t type
Specifies the output format. The following formats are currently supported:
text
Text format. This is the default.
html
HTML format. It is not recommended.
xml
XML format. It provides the most information.
tag
"Tagged PDF" format. A tagged PDF has its own contents annotated with HTML-like tags. pdf2txt tries to extract its content streams
rather than inferring its text locations. Tags used here are defined in the PDF Reference, Sixth Edition[1] (S10.7 "Tagged PDF").
-D writing-mode
Specifies the writing mode of text outputs:
lr-tb
Left-to-right, top-to-bottom.
tb-rl
Top-to-bottom, right-to-left.
auto
Determine writing mode automatically
-M char-margin, -L line-margin, -W word-margin
These are the parameters used for layout analysis. In an actual PDF file, text portions might be split into several chunks in the
middle of its running, depending on the authoring software. Therefore, text extraction needs to splice text chunks. In the figure
below, two text chunks whose distance is closer than the char-margin is considered continuous and get grouped into one. Also, two lines
whose distance is closer than the line-margin is grouped as a text box, which is a rectangular area that contains a "cluster" of text
portions. Furthermore, it may be required to insert blank characters (spaces) as necessary if the distance between two words is greater
than the word-margin, as a blank between words might not be represented as a space, but indicated by the positioning of each word.
Each value is specified not as an actual length, but as a proportion of the length to the size of each character in question. The
default values are char-margin = 1.0, line-margin = 0.3, and W = 0.2, respectively.
-n
Suppress layout analysis.
-A
Force layout analysis for all the text strings, including text contained in figures.
-V
Enable detection of vertical writing.
-s scale
Specifies the output scale. This option can be used in HTML format only.
-m n
Specifies the maximum number of pages to extract. By default, all the pages in a document are extracted.
-P password
Provides the user password to access PDF contents.
-d
Increase the debug level.
EXAMPLES
Extract text as an HTML file whose filename is output.html:
$ pdf2txt -o output.html samples/naacl06-shinyama.pdf
Extract a Japanese HTML file in vertical writing:
$ pdf2txt -c euc-jp -D tb-rl -o output.html samples/jo.pdf
Extract text from an encrypted PDF file:
$ pdf2txt -P mypassword -o output.txt secret.pdf
SEE ALSO dumppdf(1)AUTHORS
Jakub Wilk <jwilk@debian.org>
Wrote this manual page for the Debian system.
Yusuke Shinyama <yusuke@cs.nyu.edu>
Author of PDFMiner and its original HTML documentation.
NOTES
1. PDF Reference, Sixth Edition
http://www.adobe.com/devnet/acrobat/pdfs/pdf_reference_1-7.pdf
pdf2txt 08/24/2011 PDF2TXT(1)