I need to execute command at remote host from my program.
there is rs6000/aix standard command called rexec.
unfortunately rexec ask username and password which must supplied interactively, of course it is impossible runned by program.
So I have to change rexec command format to make user-name... (5 Replies)
As i was reading an article on being a "HACKERS" which was 30 minutes ago thinking that HACKING was the same as CRACKING, after the reading i discovered their difference, a hacker builds the internet while crackers just cracks and annoy like phreaking and breaking into people's computer.
That... (5 Replies)
Hi,
I'm really new and I need help with UNIX. I'm not sure how to use FILE * fp properly, I don't know how to use loops, I don't know how to using i++ or ++i to do things like count the number of scans and print it out, and I don't know how to call functions and use them. I really only know how to... (1 Reply)
I just loaded Cygwin on my XP deskop. I am TRYING to install a program that said it needs this program to run. How do I install or run a program? Keep in mind I just started with Unix yesterday:) (1 Reply)
Alright i'm having problems with this loop. Basically once the script is ran a parameter is required. Once entering the parameter it displays that in LIMIT. Alright so now the problem, I need my loop to ask my user for a number, and if that number is less than the limit then sum the input values... (4 Replies)
It's almost 3 days now and my resync/re-attach is only at 80%. Is there something I can check in Solaris 10 that would be causing the degradation. It's only a standby machine.
My live system completed in 6hrs. (9 Replies)
I'm rusty with cp, so I was wondering: is it possible to cp all the .doc files in a folder and make them .txt files? Can you use cp to do that? (3 Replies)
Hi All,
I am just curious, not programming anything of my own. I know there are libraries like gmp which does all such things. But I really need to know HOW they do all such things i.e. working with extremely large unimaginable numbers which are beyond the integer limit. They can do add,... (1 Reply)
I am sorry if this qeustion is silly. (Please see Title of this thread.)
Is it possible to build a shell script that 1) runs a nawk command that I know works, to analyze a column of data and 2) after that column is analyzed, if the result is over a certain level, send an email with the... (2 Replies)
Discussion started by: he204035
2 Replies
LEARN ABOUT PLAN9
grep
GREP(1) General Commands Manual GREP(1)NAME
grep - search a file for a pattern
SYNOPSIS
grep [ option ... ] pattern [ file ... ]
DESCRIPTION
Grep searches the input files (standard input default) for lines (with newlines excluded) that match the pattern, a regular expression as
defined in regexp(6). 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.
-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.
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 '...'.
SOURCE
/sys/src/cmd/grep.c
SEE ALSO ed(1), awk(1), sed(1), sam(1), regexp(6)DIAGNOSTICS
Exit status is null if any lines are selected, or non-null when no lines are selected or an error occurs.
GREP(1)