Dear all
I have a file with more than one patters to search.Such as pattern.txt. I have to grep these patterns into a data file such as data.txt.how to do this ,i tried
/usr/xpg4/bin/grep -f <pattern_file> <data_file>
Its not working. why or how to search pattern file ? (3 Replies)
I am looking for a file with 'MCR0000000716214' in it. I tried the following command:
grep MCR0000000716214 *
The problem is that the folder I am searching in has over 87000 files and I am getting the following:
bash: /bin/grep: Arg list too long
Is there any command I can use that can... (6 Replies)
Hi,
i need to use --alternative option of getopt
for ex . getopt -o a:c: --alternative pw: -- "$@"
if i use like this, i am not getting any output.Please help me how to correct this.i need to have a combination of long and short options.But long options have to begin with - and not... (0 Replies)
Hi,
We used to use the below commands often.
ps -ef|grep bc
ps -ef|grep abc|grep -v grep
Both fairly returns the same result.
For example, the process name is dynamic and we are having the process name in a variable, how we can apply the above trick.
For example "a" is the... (11 Replies)
Hi Experts,
PFB my requirement:
I have a file (named file1) containing numbers like:
372846078543002
372846078543003
372846078543004
372846078543005
372846078543006
I have another file (nemed file2)where lines containing these numbers(present in file1) are present; Eg:
lppza087; <PERFB >... (6 Replies)
Hi All,
We have few scripts where we are using grep -w option to do exact matching of the pattern. This works fine on most of our servers.
But I have encounter a very old HP-UX System(HP-UX B.11.00) where grep -w option is not available.
This is causing my scripts to fail. I need to change... (7 Replies)
say I have a big list of something like:
sdg2000
weghre10
fewg53
gwg99
jwegwejjwej43
afg10293
I want to remove the numbers of any line that has letters + 1 to 4 numbers
output:
sdg
weghre
fewg
gwg
jwegwejjwej
afg10293 (7 Replies)
Discussion started by: Siwon
7 Replies
LEARN ABOUT REDHAT
look
LOOK(1) BSD General Commands Manual LOOK(1)NAME
look -- display lines beginning with a given string
SYNOPSIS
look [-dfa] [-t termchar] string [file]
DESCRIPTION
The look utility displays any lines in file which contain string as a prefix. As look performs a binary search, the lines in file must be
sorted (where sort(1) got the same options -d and/or -f that look is invoked with).
If file is not specified, the file /usr/share/dict/words is used, only alphanumeric characters are compared and the case of alphabetic char-
acters is ignored.
Options:
-d Dictionary character set and order, i.e. only alphanumeric characters are compared.
-f Ignore the case of alphabetic characters.
-a Use the alternate dictionary /usr/share/dict/web2
-t Specify a string termination character, i.e. only the characters in string up to and including the first occurrence of termchar are
compared.
The look utility exits 0 if one or more lines were found and displayed, 1 if no lines were found, and >1 if an error occurred.
FILES
/usr/share/dict/words the dictionary
/usr/share/dict/web2 the alternate dictionary
SEE ALSO grep(1), sort(1)COMPATIBILITY
The original manual page stated that tabs and blank characters participated in comparisons when the -d option was specified. This was incor-
rect and the current man page matches the historic implementation.
HISTORY
Look appeared in Version 7 AT&T Unix.
BSD June 14, 1993 BSD