10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I have dir structure like this :
/opt/oracle/product/abc/sqlplus/admin/
/opt/oracle/product/def/sqlplus/admin
/opt/oracle/product/ghi/sqlplus/admin
I am trying to use wildcard ( for dirs abc,def,ghi) ..something like this :
cp xyz.txt ... (1 Reply)
Discussion started by: talashil
1 Replies
2. Shell Programming and Scripting
HI All,
I have a script that needs to find out a list of files in a directory, i pass the search parameter as an argument.
opendir ( DIR, $dir ) || die "Error in opening dir $dirname\n";
@filename1 = (grep {/$File_pattern/ } readdir(DIR));
The problem is my file patterns are like... (1 Reply)
Discussion started by: amit1_x
1 Replies
3. Shell Programming and Scripting
Hi,
I am having a file (file1) having following contents
" xet B - All Divers/All Rivers - - ns - "
Now when i use
cat file1 | grep 'RF'
it doesn't returns anything.
But on using
cat file1 | grep 'RF*'
shows me... (6 Replies)
Discussion started by: sarbjit
6 Replies
4. Shell Programming and Scripting
Hey All,
I am trying to send a string as an input parameter to a function which contains a wild card character - *
However the function is taking it as:
PS: The directory - '/path/to/my/dir/' has 3 files:
file1.out,
file2.out,
file3.out
However I want to disable this wild... (2 Replies)
Discussion started by: paragkalra
2 Replies
5. Shell Programming and Scripting
Hi,
I am using RHEL5.
I have following if condition.
if
In the above condition, if the value of a contains word WARNING, it should match. i.e., WARNING_MESSAGE, CRITICAL WARNING, WARNING ALERT etc. it should match.
For b, alert error, ALERT ERROR, ERROR IMMEDIATE ACTION REQUIRED, etc... (2 Replies)
Discussion started by: user7509
2 Replies
6. AIX
Hi,
I want to monitor my filesystem capacity and I want to df with grep wildcard for all 9*%.
Is this possible? I want to replaced all the existing complicated scripts I have in the system.
Thanks,
Itik (2 Replies)
Discussion started by: itik
2 Replies
7. Shell Programming and Scripting
Hi,
Is there a way to use find command to list the directories for certain permissions. I know we can use find . -type d -perm nnn, where nnn is the permission number . However I wold like to know if I wanna search for wild card permissions i.e 75* / 7* / 55* , as i do not know the actual... (1 Reply)
Discussion started by: braindrain
1 Replies
8. UNIX for Dummies Questions & Answers
Hi,
I would like to pass a wild card as part of an argument. But when I do it the script views the wild card as text.
Example:
sFile=MG1A*
sort $sFile > $sFile.sorted
What I get is MG1A*.sorted
The problem is I am passed a series of files where the first few characters like "MG1A"... (2 Replies)
Discussion started by: eja
2 Replies
9. UNIX for Dummies Questions & Answers
I am trying to cp files that have F0 as prefix in their name in path p1/p2 to path p3/p4
this command does not work - Why? (I am using HP/UX)
cp p1/p2/F0* p3/p4
thanks. (2 Replies)
Discussion started by: GNMIKE
2 Replies
10. UNIX for Dummies Questions & Answers
Hi,
Please help me.
Suppose I have a file which contains files like:
My file :/tmp/rooh_20020518.lst
it consists:
ASI00320225041925URD01
ASI00320225041925KER02
ASI00390228095244KER08 ... (1 Reply)
Discussion started by: rooh
1 Replies
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 Also
ex(1), sed(1), sh(1)
grep(1)