10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi,
I am looking for a solution to grep for minimum 5 or 6 characters in a file, otherwise ignore.
Example
1121221222
2212121211
1221122122
2121222222
2222112222
1211221121
So it greps 5 X 1 or 6 X 1
2212121211
1211221121
Thanks for you help (6 Replies)
Discussion started by: stinkefisch
6 Replies
2. Shell Programming and Scripting
I have a file input.txt which have loads of weird characters, html tags and useful materials. I want to display 35 characters after the word "description" excluding weird characters like $&lmp and without html tags in the new file output.txt. Help me. Thanx in advance. I have attached the input... (4 Replies)
Discussion started by: sachit adhikari
4 Replies
3. Shell Programming and Scripting
I have a file input.txt which have loads of weird characters, html tags and useful materials. I want to display 35 characters after the word description excluding weird characters like $$#$#@$#@***$# and without html tags in the new file output.txt. Help me. Thanx in advance.
My final goal is to... (11 Replies)
Discussion started by: sachit adhikari
11 Replies
4. Shell Programming and Scripting
Hello,
I have several xml files from which I want to find and return a particular string
I want to locate the InId="00000008". Now that is inlcuded within a tag and ofcourse the number is different every time
this is what I came up with given that after greping the line that contains the... (6 Replies)
Discussion started by: TasosARISFC
6 Replies
5. UNIX for Dummies Questions & Answers
I plan to use sed in a script to replace a string. My problem is the last 6 characters of the word to be replaced can be different each time, plus it's not always in the same spot on the line so I can't use cut or nawk to get the field. So I am looking for a way to find a certain word in a file,... (6 Replies)
Discussion started by: mikayla73
6 Replies
6. Shell Programming and Scripting
If I had a word list with a large amount of words in it, how would I (using a unix command) add, say, 123 to the end of each word?
EDIT: The word list is stored in a large text file. I need a command that applies the ending to each word in the file and saves the result in a new text file. (7 Replies)
Discussion started by: evillion
7 Replies
7. Shell Programming and Scripting
Hi All,
I have a word "DE_PR_Package__Basic" , i need to check if the first two characters of this words is DE or something else using perl script.
Can anyone pls let me know how to proceed?
Thanks in advance.
Giri! (3 Replies)
Discussion started by: girish.raos
3 Replies
8. Shell Programming and Scripting
Hi All
is there a way to delete last n characters from a word
like say i have employee_new
i want to delete _new. and just get only employee
I want this in AIX Shell scripting
Thanks (3 Replies)
Discussion started by: rajaryan4545
3 Replies
9. Shell Programming and Scripting
Hi,
How can I split the characters in a word?
For Eg:
If my input is:
command
my output should be:
c
o
m
m
a
n
d
Please help me in doing it so. (5 Replies)
Discussion started by: chella
5 Replies
10. UNIX for Dummies Questions & Answers
Hi all,
I am logging any access to a server, and i wanted to write a script which tells me how much entries there are.
The Problem is that
"wc -l log"
outputs the correct number of lines but with the name of the file attached.
is there any nice possibility to solve this that i ONLY... (3 Replies)
Discussion started by: JP_II
3 Replies
regex(1F) FMLI Commands regex(1F)
NAME
regex - match patterns against a string
SYNOPSIS
regex [-e] [ -v "string"] [ pattern template] ... pattern [template]
DESCRIPTION
The regex command takes a string from the standard input, and a list of pattern / template pairs, and runs regex() to compare the string
against each pattern until there is a match. When a match occurs, regex writes the corresponding template to the standard output and
returns TRUE. The last (or only) pattern does not need a template. If that is the pattern that matches the string, the function simply
returns TRUE. If no match is found, regex returns FALSE.
The argument pattern is a regular expression of the form described in regex(). In most cases, pattern should be enclosed in single quotes
to turn off special meanings of characters. Note that only the final pattern in the list may lack a template.
The argument template may contain the strings $m0 through $m9, which will be expanded to the part of pattern enclosed in ( ... )$0 through
( ... )$9 constructs (see examples below). Note that if you use this feature, you must be sure to enclose template in single quotes so
that FMLI does not expand $m0 through $m9 at parse time. This feature gives regex much of the power of cut(1), paste(1), and grep(1), and
some of the capabilities of sed(1). If there is no template, the default is $m0$m1$m2$m3$m4$m5$m6$m7$m8$m9.
OPTIONS
The following options are supported:
-e Evaluates the corresponding template and writes the result to the standard output.
-v "string" Uses string instead of the standard input to match against patterns.
EXAMPLES
Example 1: Cutting letters out of a string
To cut the 4th through 8th letters out of a string (this example will output strin and return TRUE):
`regex -v "my string is nice" '^.{3}(.{5})$0' '$m0'`
Example 2: Validating input in a form
In a form, to validate input to field 5 as an integer:
valid=`regex -v "$F5" '^[0-9]+$'`
Example 3: Translating an environment variable in a form
In a form, to translate an environment variable which contains one of the numbers 1, 2, 3, 4, 5 to the letters a, b, c, d, e:
value=`regex -v "$VAR1" 1 a 2 b 3 c 4 d 5 e '.*' 'Error'`
Note the use of the pattern '.*' to mean "anything else".
Example 4: Using backquoted expressions
In the example below, all three lines constitute a single backquoted expression. This expression, by itself, could be put in a menu defini-
tion file. Since backquoted expressions are expanded as they are parsed, and output from a backquoted expression (the cat command, in this
example) becomes part of the definition file being parsed, this expression would read /etc/passwd and make a dynamic menu of all the login
ids on the system.
`cat /etc/passwd | regex '^([^:]*)$0.*$' '
name=$m0
action=`message "$m0 is a user"`'`
DIAGNOSTICS
If none of the patterns match, regex returns FALSE, otherwise TRUE.
NOTES
Patterns and templates must often be enclosed in single quotes to turn off the special meanings of characters. Especially if you use the
$m0 through $m9 variables in the template, since FMLI will expand the variables (usually to "") before regex even sees them.
Single characters in character classes (inside []) must be listed before character ranges, otherwise they will not be recognized. For exam-
ple, [a-zA-Z_/] will not find underscores (_) or slashes (/), but [_/a-zA-Z] will.
The regular expressions accepted by regcmp differ slightly from other utilities (that is, sed, grep, awk, ed, and so forth).
regex with the -e option forces subsequent commands to be ignored. In other words, if a backquoted statement appears as follows:
`regex -e ...; command1; command2`
command1 and command2 would never be executed. However, dividing the expression into two:
`regex -e ...``command1; command2`
would yield the desired result.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO
awk(1), cut(1), grep(1), paste(1), sed(1), regcmp(3C), attributes(5)
SunOS 5.10 12 Jul 1999 regex(1F)