I have some basic doubts. Can someone clarify in this forum?
1)if
then
eval ' tset -s -Q -m ':?hp' '
else
eval ' tset -s -Q '
what does it exactly mean in .profile?
2) what are 'nobody' and 'noaccess' usernames in /etc/passwd file.
... (3 Replies)
Hello all. Let me start off by saying I know a little more then it seems by me asking this question... here goes
I have an old 486 box and I want to start messing around with unix. I've been taking classes for 3 or 4 years in c programming in unix, so I am used to the commands and such, but I... (1 Reply)
Could someone tell me the command to find out the OS version which will give 12 character not the 9 characters(which is usually machine id).
uname -i gives machine id and uname -a is more comprehensive way to look.
Thanks! (4 Replies)
hi,
I have a basic question,,
i am in a directory called
/intas/OCU_3.9.1/sbin
ocuut1@france>mv itsa_tcs itsa_tcs_old
mv: itsa_tcs_old: rename: Permission denied
i am logging as the owner of the file.
when i am doing this i am getting the above error of permission denied.
I know... (3 Replies)
i'm doing this in one terminal:
nc -lu 7402
and it appears to start listening properly, then in another i do this:
echo "hello" | nc -u localhost 7402
and nothing happens on the listening terminal - what am i doing wrong?
thanks. (7 Replies)
I think I am doing this correctly, but it is responding very quickly with no results so I am not sure. I need to do a case insensitive grep of all files in my current directory
grep -i <keyword> /my/directory
is that correct? (1 Reply)
I am trying to grep a section of .txt file...but once I grep the certain area of the file I would like to display all lines below it as well....how do I have to go about doing this...
example
grep "Sidney Crosby" hockey.txt
result
Sidney Crosby
Age
Goals
Assist
Can this be done... (8 Replies)
Hello,
I have a csv list which contains a reference and tariff code for every customer we have (~7.2 million) looking something like this:
customernumber,tariff
012345678910,T0001
012345678911,T0002
012345678912,T0001-A0001
I have a 2nd list which contains every unique tariff and... (8 Replies)
Discussion started by: Cludgie
8 Replies
LEARN ABOUT DEBIAN
plan9-grep
GREP(1) General Commands Manual GREP(1)NAME
grep, g - search a file for a pattern
SYNOPSIS
grep [ option ... ] pattern [ file ... ]
g [ option ... ] pattern [ file ... ]
DESCRIPTION
Grep searches the input files (standard input default) for lines that match the pattern, a regular expression as defined in regexp(7) with
the addition of a newline character as an alternative (substitute for |) with lowest precedence. Normally, each line matching the pattern
is `selected', and each selected line is copied to the standard output. The options are
-c Print only a count of matching lines.
-h Do not print file name tags (headers) with output lines.
-e The following argument is taken as a pattern. This option makes it easy to specify patterns that might confuse argument parsing,
such as -n.
-i Ignore alphabetic case distinctions. The implementation folds into lower case all letters in the pattern and input before interpre-
tation. Matched lines are printed in their original form.
-l (ell) Print the names of files with selected lines; don't print the lines.
-L Print the names of files with no selected lines; the converse of -l.
-n Mark each printed line with its line number counted in its file.
-s Produce no output, but return status.
-v Reverse: print lines that do not match the pattern.
-f The pattern argument is the name of a file containing regular expressions one per line.
-b Don't buffer the output: write each output line as soon as it is discovered.
Output lines are tagged by file name when there is more than one input file. (To force this tagging, include /dev/null as a file name
argument.)
Care should be taken when using the shell metacharacters $*[^|()= and newline in pattern; it is safest to enclose the entire expression in
single quotes '...'. An expression starting with '*' will treat the rest of the expression as literal characters.
G invokes grep with -n and forces tagging of output lines by file name. If no files are listed, it searches all files matching
*.C *.b *.c *.h *.m *.cc *.java *.cgi *.pl *.py *.tex *.ms
SOURCE
/src/cmd/grep
/bin/g
SEE ALSO ed(1), awk(1), sed(1), sam(1), regexp(7)DIAGNOSTICS
Exit status is null if any lines are selected, or non-null when no lines are selected or an error occurs.
GREP(1)