how to match an alphanumeric string like the following.
i have to do like the following.
if the input line is
the data is {clock_91b}
i have to replace that with
the string was ("clock_91b")
i tried like
$line =~ s/the data is\s+\{(+)\}/the string was \(\"$1\"\)/
which... (4 Replies)
Hi :)
I am writing a ksh
I have a string of general format
A12B3456CD78
the string is of variable length
the string always ends with numbers (here it is 78.. it can be any number of digits may be 789 or just 7)
before these ending numbers are alphabets (here it is CD can even be... (3 Replies)
Hi there
With shell script I'm trying to split the string into two parts. One is alphanumeric part, the other one is a numeric part.
dummy_postcode_1 = 'SL1'
--> res_alpha = 'SL' and res_numeric = '1'
dummy_postcode_2 = 'S053'
--> res_alpha = 'S' and res_numeric = '053' ... (1 Reply)
Okay I will let users input spaces as well :)
I am having a mental block. I have done a couple of searches but havent found anything that I understand (the likes of :alpha: and awk).
Basically I want to give the user an option to enter some text which will go down as a field within a flat... (3 Replies)
Hi guys, I'm new to this forum and I'm not a UNIX expert. I can't figure out this certain problem i'm having:
I need to sort some words, some of the words are annotations (enclosed within < and >). I need to have them sorted alphabetically with all non-alphanumeric characters up front. For... (2 Replies)
Hi!
Could anyone so kindly help me a code to eliminate from a txt file, obtained by collecting and merge several web-page, every word (string) containing non alphabetical, numeric and punctuation character (i.e NON a-zA-Z0-9, underscore and punctuation mark)?
Thanks a lot for the help to... (5 Replies)
Hi All,
I am new to Unix and trying to run some scripting on a linux box. I am trying to remove the non alphanumeric characters and alpha characters from the following line.
<measResults>883250 869.898 86432.4 809875.22 804609 60023 59715 </measResults>
Desired output is:
883250... (6 Replies)
Hi,
I would like to be able to parse out a substring matching a basic pattern, which is a character followed by 3 or 4 digits (for example S1234 out of a larger string). The main string would just be a filename, like Thisis__the FileName_S1234_ToParse.txt. The filename isn't fixed, but the... (2 Replies)
Hi everyone,
I want help to insert space between digits and letters in a alphanumeric string.
INPUT
TRY234TER
PHY1TYR
EXPECTED OUTPUT
TRY 234 TER
PHY 1 TYR
The lines always begin with the letters and the alphabets will be a three letter combination before and after the number. The... (2 Replies)
Hi,
I will be having file names like below,
1420SP1.01804
1420SP1.01805D
1420SP1.01805
1420SP1.01806D
1420SP1.01806
1420SP1.01901D
1420SP1.01901
1420SP1.01902D
1420SP1.01902
1420SP1.01903D
1420SP1.01903
1420SP1.01904
1420SP1.01905
From this, I need to list file names which is... (3 Replies)
Discussion started by: Sumanthsv
3 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