Dear Kae and Roger,
Thank u so much 4 ur help and support … J
Today I want to share some words with all those fellow Linux devotees…….
But, first let me introduce my self …..
My name is gopal ghosh and I live in new Delhi….
my parent wanted me to become a Railway Ticket Checker at old Delhi railway
I want to become a computer wizard.. as pictures of computer systems
influenced me so much as a kid… that
Some times in my dreams even I designed few cool mouse and trackball
and to fulfill my dreams I joined a local computer institute, but after 2
months they throw me out as my questions irritate them
in my view they are unable to satisfy my appetite to learn more…..
still today I feel the same appetite which drives me to learn new things
After this incident I strongly believe in self learning…..
now I am providing support for more than 1400 products from 32 principal
my reason for learning Linux is I want to provide tech support for Autodesk
smoke which runs on RHEL
so to learn Linux I am here on this fedora mailing list…….
I know what kind of information is mentioned in man pages to learn a command
FIRST I start with books with few switches and arguments
THEN I go to man pages to test some more switches and arguments , some times
I find it easy to ride through the man pages, but
sometimes I don't.
Each time I learn a new thing I found myself deeply in love with Linux
THANKS to Linux god who created such a nice thing which can perform so many
task in one command…
all that I mentioned here to emphasis the importance of a fair discussion
with out any altercation.
sometimes what I know is accurate for me and wrong for others but that
doesn't mean I fight with them to prove I am right.
i discuss the topic to update myself.
I appreciate ur efforts to help people like me and I also request u not to
involve in any kind of altercation.
here I am submitting my information for CP , CHMOD and command redirection
*command output redirection to file**
**STDIN – 0
STDOUT – 1
STDERR – 2
*> redirect STDOUT to file
> append STDOUT to pre existing file
2> redirect STDERR to
2>> append STDERR to existing file
*command < file ** send file as input*
*/dev/null is black hole for data as all inputs are ignored*
* comman1 *| *command2
STDOUT > STDIN
( ) combines STDOUT of multiple programs such as
*(cal2007 ; cal2008) | less*
*&2>&1 redirects STDERR to STDIN*
cat < filename.txtx
*ls **>** list.of.files *– redirect command output to this file
*ls **>>** list.of.files *- append output at the end of file
*command output redirection to another command*
*ls **|** more *
*ls **|** sort
*cp is a file & directory copy command
*cp file1 file2 dir*
*cp /gopal.nano gopal2.nano /home*
*cp file1 file2 file3 file4 dir*
cp -a copies files and directories recurisvly
cp -p copies content along with permission and time stamp
cp -i interactive mode
cp -f force
change mode command
octal: 0 6
binary: 000 111 111
symbolic: sst rwx
chmod o=r archive.sh
chmod g= topsecret.inf
chmod og=rw publicity.html
chmod g=u info.dat
rwx r-x r-- info.sh
111 101 100
7 5 4
*chmod 444 gopal.nano*
chmod [OPTION]... MODE[,MODE]... FILE...
chmod [OPTION]... OCTAL-MODE FILE...
chmod [OPTION]... --reference=RFILE FILE...
And finally HOPE u people don't mind me for repeating my questions again
** how to search for a group of files using wildcard and copy the result
content and redirecting it to a dir
** how to use chmod command (in octal mode) for n number of files present in
On Thu, Sep 18, 2008 at 5:28 PM, Roger Millington <
Kae Verens wrote:
> Roger Millington wrote:
>> man chmod
> that's a bit harsh, Roger! It's possible that maybe Gopal does not
> understand the man pages.
There is no indication that Gopal has read the 'man' pages or even
understands that they exist. I would expect that my response(s) will
invite Gopal's curiosity and that he will investigate this mysterious
The alternative is for someone to spend 20 minutes making precis of the
relevant 'man' pages and posting them.
> chmod 750 filename1 filename2
> first digit is user
> second digit is group
> third digit is everyone (world)
> 7 = allow file owner to read, write, execute
> 5 = allow members of file's group to read and execute
> 0 = do not let anyone else use the file
> the numbers are calculated by adding these up
> 4 = allowed to read
> 2 = allowed to write
> 1 = allowed to execute.
> so 750 = (4+2+1)(4+1)(0)
>> Gopal Ghosh wrote:
>>> Dear all,
>>> how to use chmod command (in octal mode) for n number of files
>>> present in a
>>> Fedora-laptop-list mailing list
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