in this grep have been used backreference expression in this example
Code:
# grep -v '\([[:alpha:]]\)\1' file
-v --> means for except for and print others (does not matches) \( pattern \) --> tells expression which pattern to referenced [[:alpha:]] --> Any alphabetic character so [A-Z] or [a-z] \1 --> our referenced string which we say in \( pattern \) so \( pattern \) 's equal to \1
finally if any line contains same char ( [A-Z] or [a-z] ) in side by side
for example (Tesst) and do not print this ( grep -v )
Alrigt, I need to write a shell script where it counts the number of folders and files and dispays "My home directory has 'x' files and 'y' directories."
So, I was thinking of doing this.
set x = `ls | wc`
so, if I have 8 files and folders in my home directory, x is not 8.
now, I was... (1 Reply)
Anyone know where I can get started in C++ programming in unix?
Any good free tutorials or websites to start at?
I am okay in unix scripting but have never done c programming of any sort...
What are the main advantages of using C++ ? (2 Replies)
hi guys,
i have a DEl xps laptop cor 2 duo 2.2
i have vista installed on it
i want to install a dual Boot UNIX on it..
can some one guide me ...cause i m tottaly new to UNIX
i want to install unix on that laptop along with Vista....
thx
any help would be deeply appreciated
(sorry if i... (5 Replies)
I need to write a script to test a nsort c program. I have written 8 .txt files with different cases. Also 8 .txt files with expected outcome. The shell I have written always "test pass" for the first case but always "fail" for the rest... Here is a portion of my code (as I still don't know how to... (5 Replies)
hy guys,
I have perl script provided to me but i need to convert it into shell .Can you help me in this using sed shell command.
cat /etc/passwd |perl -ne '/^(\w+):\w+: (\w+)/ and print "$1, $2\n";' (1 Reply)
i write a shell program and i execute that after i made a bin directiry in my home directory(i didnt give any permissions)
now i change to other directory.then i execute it bit it is saying " no such a file or directory"
can any one help me please (2 Replies)
Hi people....
I have just started to learn unix.I want to know which version of Unix to install plus how to install it.I need to practise and make myself aware of how unix works.My thread is from an educational point of view.Also please feel free to give your suggestions as I am... (3 Replies)
i have windows 8 host on Dell Laptop
vmware 9
redhat 7.2 iso downloaded through redhat official site
after installation on vm it only boots into text dont show graphics
Please guide:( (1 Reply)
Hello so I've stored some csv data to be read into variables like this
Name,Team,Shop,Shoe
etc,etc,etc,etc
Code:
sep=","
{
while IFS=$sep read Name Team Shop Shoe
do
count=1
dirname=$Name
while
do
((count++))
dirname="${Name}$count" (4 Replies)
Discussion started by: darklord173
4 Replies
LEARN ABOUT SUSE
set_color
set_color(1) fish set_color(1)NAME
set_color - set_color - set the terminal color
set_color - set the terminal color
Synopsis
set_color [-v --version] [-h --help] [-b --background COLOR] [COLOR]
Description
Change the foreground and/or background color of the terminal. COLOR is one of black, red, green, brown, yellow, blue, magenta, purple,
cyan, white and normal.
o -b, --background Set the background color
o -c, --print-colors Prints a list of all valid color names
o -h, --help Display help message and exit
o -o, --bold Set bold or extra bright mode
o -u, --underline Set underlined mode
o -v, --version Display version and exit
Calling set_color normal will set the terminal color to whatever is the default color of the terminal.
Some terminals use the --bold escape sequence to switch to a brighter color set. On such terminals, set_color white will result in a grey
font color, while set_color --bold white will result in a white font color.
Not all terminal emulators support all these features. This is not a bug in set_color but a missing feature in the terminal emulator.
set_color uses the terminfo database to look up how to change terminal colors on whatever terminal is in use. Some systems have old and
incomplete terminfo databases, and may lack color information for terminals that support it. Download and install the latest version of
ncurses and recompile fish against it in order to fix this issue.
Version 1.23.1 Sun Jan 8 2012 set_color(1)
11-13-2010
