I am trying to discover the sequence of escape characters that I need to pass ksh in order to turn inverse video on and off. I need this information for two reasons:
* I want to include inverse video text in some shell scripts
* I wish to highlight a section of an /etc/motd file
Thanks for... (2 Replies)
I have few days to complete my awk homework. But I'm stucked. i hope some1 will help me out.
I have to inverse n x n matrix, but I have problems with finding the determinant of the matrix.
I found the algoritm, how to find a determinant of n x n matrix:... (0 Replies)
I need to inverse a matrix given in a file.
The problem is I'm stuck with writing determinant finding algoritm into code.
I found this algoritm about finding determinant of nxn matrix. This is what i need:
Matrices and Determinants
and here:
a11 a12 a13
a21 a22 a23
a31 a32 a33... (0 Replies)
Hi All,
Is there an option for 'rm' to "remove everything but these files"?
For instance if I have:
a.txt <-- I just want to remove this one
a_1.txt
a_2.txt
Is there an option ? for this:
rm -? *_*.txt
Thanks,
ScKaSx (4 Replies)
Hi,
I'm trying to wtite a script which actually print the text which doesn't contain a word , i mean to say.
eg:- if a file contains the follwoing data
Hello how ru ???
What ru doing ?
what is the % of data contained ???
I want to write a script such that it prints the line excluding... (1 Reply)
I am totally unexperienced in writing scripts of any kind.
I am working on Mac OS X and would like to run a shell script to find files in a directory that do not conform to a specific naming convention and print to a text file in the same directory.
For example, I have a folder called... (9 Replies)
I ask of you but yet another simplistic question that I hope can be answered. Its better explained showing my code. Here is my list(tmp_pkglist), which contains a list of all Debian (Jessie) packages:
snippet
'zssh (1.5c.debian.1-3.2+b1 , 1.5c.debian.1-3.2 )',
'zsync (0.6.2-1)',
'ztex-bmp... (2 Replies)
I have an interactive script which sorts and processes a variety of filetypes from an unsorted folder into newly created directories.
The script works great, But I was wondering how I could generate a script with an inverse action so that I could unwind / undo the executed script and its sorting... (3 Replies)
Discussion started by: Braveheart
3 Replies
LEARN ABOUT BSD
cut
CUT(1) User Commands CUT(1)NAME
cut - remove sections from each line of files
SYNOPSIS
cut OPTION... [FILE]...
DESCRIPTION
Print selected parts of lines from each FILE to standard output.
With no FILE, or when FILE is -, read standard input.
Mandatory arguments to long options are mandatory for short options too.
-b, --bytes=LIST
select only these bytes
-c, --characters=LIST
select only these characters
-d, --delimiter=DELIM
use DELIM instead of TAB for field delimiter
-f, --fields=LIST
select only these fields; also print any line that contains no delimiter character, unless the -s option is specified
-n (ignored)
--complement
complement the set of selected bytes, characters or fields
-s, --only-delimited
do not print lines not containing delimiters
--output-delimiter=STRING
use STRING as the output delimiter the default is to use the input delimiter
-z, --zero-terminated
line delimiter is NUL, not newline
--help display this help and exit
--version
output version information and exit
Use one, and only one of -b, -c or -f. Each LIST is made up of one range, or many ranges separated by commas. Selected input is written
in the same order that it is read, and is written exactly once. Each range is one of:
N N'th byte, character or field, counted from 1
N- from N'th byte, character or field, to end of line
N-M from N'th to M'th (included) byte, character or field
-M from first to M'th (included) byte, character or field
AUTHOR
Written by David M. Ihnat, David MacKenzie, and Jim Meyering.
REPORTING BUGS
GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
Report cut translation bugs to <http://translationproject.org/team/>
COPYRIGHT
Copyright (C) 2017 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
SEE ALSO
Full documentation at: <http://www.gnu.org/software/coreutils/cut>
or available locally via: info '(coreutils) cut invocation'
GNU coreutils 8.28 January 2018 CUT(1)