Hi
I have 3 patterns for example to be searched.
These three patterns are available in file1.
The patterns to be searched are in file2.
I want to search the pattern of file1 to file2.
Can any one help with example?
Regards
Dhana (1 Reply)
Hi,
From the pattern mentioned below remove lines based on pattern range.
Conditions
1 Look For all lines starting with ALTER TABLE and Ending with ; and contains the word MOVE.I wanto to remove these lines from the file sample below.
Note : The above pattern list could be found in... (1 Reply)
Good day, great gurus,
I'm new to Perl, and programming in general. I'm trying to retrieve a column of data from my text file which spans a non-specific number of lines. So I did a regexp that will pick out the columns. However,my pattern would vary. I tried using a foreach loop unsuccessfully.... (2 Replies)
Hi Gurus,
I have a file say for ex. file1 which has 3500 lines in it which are different account numbers and another file (file2) which has 230000 lines in it. I want to read all the lines in file1 and delete all those lines from file2 which has that same pattern as in file1. I am not quite... (4 Replies)
Hi All, I need to grep few files which has words like the below in the file name , which i want to put it in a file and and grep for the files which contain these names and move it to a new directory ,
full file name -C20091210.1000-20091210.1100_SMGBSC3:1000... (2 Replies)
Hi, I want to list all file that match user input ( specified shell wildcard) but when I compile it dont list me
#!/usr/bin/perl -w
print "Enter Advance Search Function: ";
chomp ($func = <STDIN>);
my @files = glob("$func");
foreach my $file (@files)
{
print "$file\n";... (1 Reply)
How do I use grep to select words that start with I or O, end in box, and contain at least one letter in between them?
the text file mailinfo.txt contains
Inbox
the Inbox
Is a match box
Doesn't match
INBOX
Outbox
Outbox1
InbOX
Ibox
I box
If the command works correctly it... (4 Replies)
When I use the following grep command with options -F and -f, its just displaying the text related to only the last pattern.
Command: $ grep -f pattern_file.txt input_file.txt
Output: doc-C2-16354
Even the following command yields the same output:
Command: $ grep -Ff pattern_file.txt... (6 Replies)
I am able to grep multiple patterns which stored in a files. However, how could we replace the whole line with either the pattern or new string?
For example:
pattern_file: *Info in the () is not part of the pattern file. They are the intended name to replace the whole line after the pattern... (5 Replies)
Discussion started by: wxboo
5 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)