Hi, Can you help please.
I have the following comand:
if ]; then
l_valid_string="Y"
fi
The problem I am trying to solve is that my l_string = ABC and my file contains
ABC
ABC_EFG
I only want back the value ABC exact match. (3 Replies)
Hi
I have a string of the form XY_X1998.10.500.
I want to check in a script that the middle part is always 10. How to achieve this?
e.g the input can be XY_X1998.20.500 OR XY_X1998.50.500
OR XY_X1998.10.500.
I have to print Yes everytime the middle value is 10 and NO when the middle... (2 Replies)
I'm trying to find a exact word match but couldn't do it.
ABC
ABC_NE
Searching for ABC_NE tried
grep -w </ABC_NE/>
grep "^ABC_NE$"
but didn't worked , any awk variants would also help.
---------- Post updated at 08:40 AM ---------- Previous update was at 06:48 AM ----------
I... (2 Replies)
Dear Friends,
Anybody knows how to match exact lines only in multilinear.
Input file:
apple
orange
orange
apple
apple
orange
Desired output:
fruit
orange
apple
fruit
i used the command (1 Reply)
Hi All,
Str="online maintenance"
if then perform some action
I know the above comparison is wrong ..... Actually I am very new to this solaris..
I want to check for online in a variable and perform some action based on that How can I do it? (6 Replies)
I am trying to match a pattern exactly in a shell script. I have tried two methods
awk '/\<mpath${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 All,
I'm writing unix script, it should find exact matching in search string. Looks simple but when i started i'm stuck to find the exact match character string.
The unix script reads the records from DB Table. The table will have values something likes these
Feed : A Feed File name :... (3 Replies)
Hi All,
I have a text / log file which contains strings like meta777, 77, meta, 777. Now I want to write a script which can detect a string 'meta#777' in a text file & number of occurence of 'meta', number of #, number 7, 77, 777.
I'm using grep -e '77' filename but no luck. It is returning... (5 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 $0}' file
strangely nothing seems to... (3 Replies)
I just want to match "binutils1_test" only, and print the match line only
lyang001@lyang001-OptiPlex-9010:/tmp$ cat file
zbinutils1_test
bbinutils1_test
binutils1_test
w-binutils1_test
lyang001@lyang001-OptiPlex-9010:/tmp$ cat file |grep -w 'binutils1_test'
... (7 Replies)
Discussion started by: yanglei_fage
7 Replies
LEARN ABOUT ULTRIX
grep
grep(1) General Commands Manual grep(1)Name
grep, egrep, fgrep - search file for regular expression
Syntax
grep [option...] expression [file...]
egrep [option...] [expression] [file...]
fgrep [option...] [strings] [file]
Description
Commands of the family search the input files (standard input default) for lines matching a pattern. Normally, each line found is copied
to the standard output.
The command patterns are limited regular expressions in the style of which uses a compact nondeterministic algorithm. The command patterns
are full regular expressions. The command uses a fast deterministic algorithm that sometimes needs exponential space. The command pat-
terns are fixed strings. The command is fast and compact.
In all cases the file name is shown if there is more than one input file. Take care when using the characters $ * [ ^ | ( ) and in the
expression because they are also meaningful to the Shell. It is safest to enclose the entire expression argument in single quotes ' '.
The command searches for lines that contain one of the (new line-separated) strings.
The command accepts extended regular expressions. In the following description `character' excludes new line:
A followed by a single character other than new line matches that character.
The character ^ matches the beginning of a line.
The character $ matches the end of a line.
A . (dot) matches any character.
A single character not otherwise endowed with special meaning matches that character.
A string enclosed in brackets [] matches any single character from the string. Ranges of ASCII character codes may be abbreviated
as in `a-z0-9'. A ] may occur only as the first character of the string. A literal - must be placed where it can't be mistaken as
a range indicator.
A regular expression followed by an * (asterisk) matches a sequence of 0 or more matches of the regular expression. A regular
expression followed by a + (plus) matches a sequence of 1 or more matches of the regular expression. A regular expression followed
by a ? (question mark) matches a sequence of 0 or 1 matches of the regular expression.
Two regular expressions concatenated match a match of the first followed by a match of the second.
Two regular expressions separated by | or new line match either a match for the first or a match for the second.
A regular expression enclosed in parentheses matches a match for the regular expression.
The order of precedence of operators at the same parenthesis level is the following: [], then *+?, then concatenation, then | and new
line.
Options-b Precedes each output line with its block number. This is sometimes useful in locating disk block numbers by context.
-c Produces count of matching lines only.
-e expression
Uses next argument as expression that begins with a minus (-).
-f file Takes regular expression (egrep) or string list (fgrep) from file.
-i Considers upper and lowercase letter identical in making comparisons and only).
-l Lists files with matching lines only once, separated by a new line.
-n Precedes each matching line with its line number.
-s Silent mode and nothing is printed (except error messages). This is useful for checking the error status (see DIAGNOSTICS).
-v Displays all lines that do not match specified expression.
-w Searches for an expression as for a word (as if surrounded by `<' and `>'). For further information, see only.
-x Prints exact lines matched in their entirety only).
Restrictions
Lines are limited to 256 characters; longer lines are truncated.
Diagnostics
Exit status is 0 if any matches are found, 1 if none, 2 for syntax errors or inaccessible files.
See Alsoex(1), sed(1), sh(1)grep(1)