04-02-2008
Perl RegExp to remove last character from strings
I use SAS (a statistical software) and have to remove last character or the last 1/2 numbers that appear after characters from the string using Perl Regular Expression (which is recognized by SAS).
Input: f183ii10 f183ii2 f182ii1 f182ii2 f183iim f22ii f22ii11 f22ii12 pmh4 pmhm
Desired Output:f183ii f183ii f182ii1 f182ii2 f183ii f22ii f22ii f22ii pmh pmh
Thanks for your assistance,
OsE
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hello Experts,
Can someone help me here:
I have a variable which contains a string with "".
set var1 {a}
set str1 {a is the element i want to match}
Now "regexp $var1 $str1" does not work?
("regexp {a\} $str1" works, but var1 gets it's value automatically from another script)
Is... (6 Replies)
Discussion started by: sumitgarg
6 Replies
2. Shell Programming and Scripting
Hello, i'm unable to remove the parenthesis character.
With $parsed_AsciiName =~ s/\(//;
the string is the same
And with $parsed_AsciiName =~ s/(//;
i retrieve "Unmatched ( in regex; marked by <-- HERE in m/( <-- HERE"
Any ideas, please? thank you in advanced. (4 Replies)
Discussion started by: aristegui
4 Replies
3. Shell Programming and Scripting
i want to split the input by a space and remove specific characters like full stop, comma...... etc. and then save each word in an array.
i got something below, but it didn't work. can anyone please help me?
Thank you
#!/usr/bin/perl -w
while (<>)
{
$line = <>;
@word = split(' ',... (6 Replies)
Discussion started by: mingming88
6 Replies
4. Shell Programming and Scripting
Hi,
I wonder if its possible to do the following task using rename (perl v5.8.8).
I want to find filenames matching the specific pattern and then change chosen character of this pattern to a given character, e.g. do the following renaming:
regexp: 'ab' -----> 'a0b'
What's the simplest... (0 Replies)
Discussion started by: pms
0 Replies
5. UNIX for Dummies Questions & Answers
Hi,
I am learning reg exp a bit :)
Meta char info:
{n,m} Matches the preceding character at least n times but not more than m times, for example, 'ba{2,3}b' will find 'baab' and 'baaab' but NOT 'bab' or 'baaaab'. Values are enclosed in braces (curly brackets).
Input file:
112
11112... (2 Replies)
Discussion started by: dragon.1431
2 Replies
6. Shell Programming and Scripting
I'd like to remove (do a pattern or precise replacement - this I can handle in SED using Regex )
---AFTER THE 1ST Occurrence ( i.e. on the 2nd occurrence - from the 2nd to fourth occurance ) of a specific string : type 1
-- After the 1st occurrence of 1 string1 till the 1st occurrence of... (4 Replies)
Discussion started by: sieger007
4 Replies
7. Shell Programming and Scripting
In a 10-50GB file , at end of file there is Control-z character
tried the below options,
1. perl -p -i -e 's/^Z//g' new.txt
2. perl -0777lwi -032e0 new.txt
and Sed command, dos2unix etc
it takes more time to remove the control-z. need a command or perl program to GO TO LAST LINE OF FILE ... (7 Replies)
Discussion started by: prsam
7 Replies
8. Shell Programming and Scripting
I'm probably just not thinking of the correct term to search for :-) But I want to match a pattern that might be 'ABC' or '1ABC' there might be three characters, or there might be four, but if there are four, the first has to be 1 (1 Reply)
Discussion started by: jnojr
1 Replies
9. Shell Programming and Scripting
Hi all,
I am trying to filter out those lines that contain a "non-alpha" character.
An example of my input is the following:
zygnematales grb
zygocactus grb
zygocactus_truncatus plt
zygodactyl_foot prt
zygoma prt
zygomatic prt
zygomatic_arch prt
zygomatic_bone ... (2 Replies)
Discussion started by: owwow14
2 Replies
10. Shell Programming and Scripting
Hi all,
I need to remove DBPATH= and /db from the string below using awk (or sed, as it also exists on the machine).
Input: DBPATH=/some/path/database/db
Desired output: /some/path/database
Thank you! (8 Replies)
Discussion started by: ejianu
8 Replies
UMAP(1p) User Contributed Perl Documentation UMAP(1p)
NAME
umap - map between different character sets
SYNOPSIS
umap [options] <before>:<after>
DESCRIPTION
The umap script acts as a filter between different encodings and character sets.
The following options are recognized:
--list [charset]
Without argument list all character sets recognized. With a specified character set list the mapping between this set and Unicode.
--strict
Do the stict mapping between the character sets. The default is to not translate unmapped character. With --stict we will remove
unmapped characters or use the default specified with --def8 or --def16.
--def8=<charcode>
Set the default 8-bit code for unmapped chars.
--def16=<charcode>
Set the default 16-bit code for unmapped chars.
--verbose
Generate more verbose output.
--version
Print the version number of this program and quit.
--help
Print the usage message.
SEE ALSO
Unicode::String, Unicode::Map8, recode(1)
COPYRIGHT
Copyright 1998 Gisle Aas.
This is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
perl v5.14.2 2010-01-18 UMAP(1p)