Use [] brackets to list all the files in /usr/bin with names starting with a,b or c.
My code:
What is wrong?
This is shell globbing, not regular expressions. It doesn't have position fixers like ^ because the expression always starts at the beginning of the string. It doesn't have any modifiers like * or +. . isn't a special character either, but ? is, it means "match any single character". * just means "match 0 or more of anything whatsoever". And you can group characters in square brackets to match one single character in a range.
Hi there!
I have 150 txt files named chunk1, chunk2, ........., chunk150. I have a second file called string.txt with more than 1000 unique strings, house, dog, cat ... I want to know which command I should use to count how many times each string appears in the 150 files.
I have tried... (4 Replies)
I am trying to find socail security numbers in files in (and under) a specific directory and output a list of the files where they are found... the format would be with no dashes just 9 numeric characters in a row.
I have tried this:
find /DirToLookIn -exec grep '\{9\}' /dev/null {} \; >>... (1 Reply)
I have a directory (and many sub dirs beneath) on AIX system, containing thousands of file. I'm looking to get a list of all directory containing "*.pdf" file.
I know basic syntax of find command, but it gives me list of all pdf files, which numbers in thousands. All I need to know is, which... (4 Replies)
I will be very grateful if someone can help me with bash shell script that does the following:
I have a list of filenames:
A01_155716
A05_155780
A07_155812
A09_155844
A11_155876
that are kept in different sub directories within my current directory. I want to find these files and copy... (3 Replies)
Hi,
I have many files named CCR20110720011001.CTRD
CCR20110720011501.CTRD
CCR20110720012001.CTRD
CCR20110720012501.CTRD
CCR20110720021001.CTRD
... (9 Replies)
I have a file 1.txt with the below contents.
-----cat 1.txt-----
1234
5678
1256
1234
1247
-------------------
I have 3 more files in a folder
-----ls -lrt-------
A1.txt
A2.txt
A3.txt
-------------------
The contents of those three files are similar format with different data values... (8 Replies)
Hello,
I have a folder with a massive amount of files, and I want to copy out a specific subset of the files to a new directory. I would like to use a text file with the filenames listed, but can't get it to work.
The thing I'm hung up on is that the folder names in the path can and do have... (5 Replies)
Hi,
I need a script/command to list out all the files in current path and also the files in folder and subfolders.
Ex: My files are like below
$ ls -lrt
total 8
-rw-r--r-- 1 abc users 419 May 25 10:27 abcd.xml
drwxr-xr-x 3 abc users 4096 May 25 10:28 TEST
$
Under TEST, there are... (2 Replies)
I have two file as given below which shows the ACL permissions of each file. I need to compare the source file with target file and list down the difference as specified below in required output. Can someone help me on this ?
Source File
*************
# file: /local/test_1
# owner: own
#... (4 Replies)
Discussion started by: sarathy_a35
4 Replies
LEARN ABOUT SUSE
match
MATCH(1L) Schily's USER COMMANDS MATCH(1L)NAME
match - searches for patterns in files
SYNOPSIS
match [ -option ] pattern [ file ... ]
DESCRIPTION
Match searches the named files or standard input (if no filenames are given) for the occurrences of the given pattern on each line. The
program accepts literal characters or special pattern matching characters. All lines that match the pattern are output on standard output.
You can only specify one pattern string for each match, however, you can construct an arbitrarily complex string. When you do not specify
a file, match can be used as a filter to display desired lines. Standard in is used if no files are specified.
OPTIONS -not, -v
Prints all lines that do not match.
-i Ignore the case of letters
-m Force not to use the magic mode
-w Search for pattern as a word
-x Display only those lines which match exactly
-c Display matching count for each file
-l Display name of each file which matches
-s Be silent indicate match in exit code
-h Do not display filenames
-n Precede matching lines with line number (with respect to the input file)
-b Precede matching lines with block number
REGULAR EXPRESSIONS
The following is a table of all the pattern matching characters:
c An ordinary character (not one of the special characters discussed below) is a one character regular expression that matches that
character.
c A backslash () followed by any special character is a one character regular expression that matches the special character itself.
The special characters are:
! # % * { } [ ] ? ^ $
! Logical OR as in match this!that!the_other. You may have to use `{}' for precedence grouping.
# A hash mark followed by any regular expression matches any number (including zero) occurrences of the regular expression.
? Matches exactly any one character. W? matches Wa, Wb, Wc, W1, W2, W3 ...
* Matches any number of any character.
% Matches exactly nothing. It can be used in groups of ored patterns to specify that an empty alternative is possible.
{} Curly brackets may be used to enclose patterns to specify a precedence grouping, and may be nested. {%!{test}}version matches the
strings testversion and version.
[string]
A non empty string of characters enclosed in square brackets is a one character regular expression that matches any one character in
that string. If however the first character of the string is a circumflex (^), the one character expression matches any character
which is not in the string. The ^ has this special meaning only if it occurs first in the string. The minus (-) may be used to indi-
cate a range of consecutive ASCII characters; for example, [0-9] is equivalent to any one of the digits. The - loses it's special
meaning if it occurs first (after an initial ^, if any) or last in the string. The right square bracket (]) and the backslash ()
must be quoted with a backslash if you want to use it within the string.
^ Matches the beginning of a line.
$ Matches the end of a line. (^*$ matches any entire line)
EXAMPLES FILES
None.
SEE ALSO grep(1), fgrep(1), egrep(1)DIAGNOSTICS NOTES
Even if a match occurs more than once per line, the line is output only once.
Quote special pattern matching characters to prevent them from being expanded by the Command Interpreter.
BUGS
The length of the pattern is currently limited to 100 characters.
This limit is reduced by 38 if the -w option is used.
Joerg Schilling 15. Juli 1988 MATCH(1L)