Hi all,
Is anyone able to help with the following query?
I have an input file with several lines of words, e.g.
"hellolaylahello"
"hellohellohellolayla"
I want to search for the exact string "hello" in each line and display:
2 "hellolaylahello"
3 "hellohellohellolayla"
I... (11 Replies)
How to emulate grep -o option in perl.
I mean to print not all line, only the exact match.
echo "2A2 BB" | perl -ne 'print if /2A2/'
2A2 BB
I want to print only 2A2. (2 Replies)
Hi All,
Str="online maintenance"
if then perform some action
I know the above comparison is wrong ..... Actually I am very new to this solaris..
I want to check for online in a variable and perform some action based on that How can I do it? (6 Replies)
I am trying to match a pattern exactly in a shell script. I have tried two methods
awk '/\<mpath${CURR_MP}\>/{print $1 $2}' multipath
perl -ne '/\bmpath${CURR_MP}\b/ and print' /var/tmp/multipath
Both these methods require that I use the escape character. I am guessing that is why... (8 Replies)
Hi,
I have a file like follows
.
.
.
White.Jack.is.going.home
Black.Jack.is.going.home
Red.Jack.is.going.home
Jack.is.going.home
.
.
.
when I make:
cat <file> | grep -w "Jack.is.going.home"
it gives:
White.Jack.is.going.home
Black.Jack.is.going.home
Red.Jack.is.going.home... (4 Replies)
I have a file that has the words I want to find in other files (but lets say I just want to find my words in a single file). Those words are IDs, so if my word is ZZZ4, outputs like aaZZZ4, ZZZ4bb, aaZZZ4bb, ZZ4, ZZZ, ZyZ4, ZZZ4.8 (or anything like that) WON'T BE USEFUL.
I need the whole word... (6 Replies)
Hi friends,
i am using the following grep command for exact word match:
>echo "sachin#tendulkar" | grep -iw "sachin"
output: sachin#tendulkar
as we can see in the above example that its throwinng the exact match(which is not the case as the keyword is sachin and string is... (6 Replies)
file
11 2
12 6
13 7
114 6
011 7
if I'm searching for 11, output needed is
output:
11 2
011 7
Code: awk '$1 ~ /^11$/' file
I used the above to match exact, but it avoiding "011 7" line too, how to resolve this? (6 Replies)
Hi All,
I am breaking my head in trying to get a command that will exactly match my given string. I have searched net and found few of the options -
grep -F $string file
grep -x $string file
grep "^${string}$" file
awk '/"${string}"/ {print $0}' file
strangely nothing seems to... (3 Replies)
I am trying to create a cronjob that will run on startup that will look at a list.txt file to see if there is a later version of a database using database.txt as the source. The matching lines are written to output.
$1 in database.txt will be in list.txt as a partial match. $2 of database.txt... (2 Replies)
Discussion started by: cmccabe
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)