Hi,
Sorry for silly question, but I'm trying to write a perl script to operate a log file that is in following format:
(4)ab=1234/(10)bc=abcdef9876/cd=0....
The number in the brackets is the lenghts of the field, "/" is the field separator. Brackets are not leading every field.
What I'm... (9 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)
Here is my problem.
I have a list of phone numbers that I want to use only the last 4 digits as PINs for something I am working on. I have all the numbers in a file but now I want to be removed all items EXCEPT the last 4 digits.
I have seen sed commands and some grep commands but I am... (10 Replies)
hello, I'm trying to write the fastest sed command possible (large files will be processed) to replace RICH with NICK in a file which looks like this (below) if the occurance of RICH is uppercase, replace with uppercase if it's lowercase, replace with lowercase
SOMTHING_RICH_SOMTHING <- replace... (10 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)
I am trying to analyse a large file of sequencing data, example of first 10 lines below,
@HWUSI-EAS656_0044_FC:7:1:2447:1039#GCAATT/1
GNCTATGGCTTGCCGGGCTCAGGGAAGACAATCATAGCCATGAAAATCATGGAAAAGATCAGAAAAACATTTCAA
+HWUSI-EAS656_0044_FC:7:1:2447:1039#GCAATT/1... (1 Reply)
Hi,
I am new to Sed and would like to know if it is possible to remove the characters .
I have a couple of files with a keyword and would like to remove the substring.
I am Using sed s/// but Its not working
Thanks for your Support
Andrew Borg (2 Replies)
Hi,
I have a file with this line, it's always in the first line:
I want to remove these special characters: ´╗┐
file1
´╗┐\\bar\c$\test2\;3.348.118 Bytes;160 ;3
\\bar\c$\test\;35 Bytes;2 ;1
I want the same file to be only
\\bar\c$\test2\;3.348.118 Bytes;160 ;3
\\bar\c$\test\;35... (4 Replies)
Hello!
I know that this expression gets rid of non-alphanumeric characters:
sed 's///g'
and I understand that it is replacing them with nothing - hence the '//'-, but I don't understand how it's doing it.
It seems it's finding strings that begin with alphanumeric and replacing them with... (2 Replies)
Hi,
I want a script of a code that will allow me to generate all possible combinations of alphanumberica characters of length 12 such that each string will contain numbers and either small or capital letters.
For example a string may look like this: 123AB45cd678. (11 Replies)
Discussion started by: faizlo
11 Replies
LEARN ABOUT DEBIAN
plan9-tr
TR(1) General Commands Manual TR(1)NAME
tr - translate characters
SYNOPSIS
tr [ -cds ] [ string1 [ string2 ] ]
DESCRIPTION
Tr copies the standard input to the standard output with substitution or deletion of selected characters (runes). Input characters found
in string1 are mapped into the corresponding characters of string2. When string2 is short it is padded to the length of string1 by dupli-
cating its last character. Any combination of the options -cds may be used:
-c Complement string1: replace it with a lexicographically ordered list of all other characters.
-d Delete from input all characters in string1.
-s Squeeze repeated output characters that occur in string2 to single characters.
In either string a noninitial sequence -x, where x is any character (possibly quoted), stands for a range of characters: a possibly empty
sequence of codes running from the successor of the previous code up through the code for x. The character followed by 1, 2 or 3 octal
digits stands for the character whose 16-bit value is given by those digits. The character sequence followed by 1, 2, 3, or 4 hexadecimal
digits stands for the character whose 16-bit value is given by those digits. A followed by any other character stands for that character.
EXAMPLES
Replace all upper-case ASCII letters by lower-case.
tr A-Z a-z <mixed >lower
Create a list of all the words in one per line in where a word is taken to be a maximal string of alphabetics. String2 is given as a
quoted newline.
tr -cs A-Za-z '
' <file1 >file2
SOURCE
/src/cmd/tr.c
SEE ALSO sed(1)TR(1)