hi
this is an example of code:
use strict;
use warnings;
open FILE, "/tmp/result_2";
my $regex="\\ Starting program ver. (.*)";
my $res="Program started, version <$1> - OK.\n";
while (<FILE>) {
if ($_ =~ /($regex)/) {
print "$res";
}
}
close FILE;
This finds $regex and print... (3 Replies)
I am facing a strange error while creating posix threads:
Given below are two snippets of code, the first one works whereas the second one gives a garbage value in the output.
Snippet 1
This works:
--------------
int *threadids;
threadids = (int *) malloc (num_threads * sizeof(int));
... (4 Replies)
A file contains the following information shown below. Every ceName has 2 consecutive lines that have to be evaluated, using awk, sed, cut (any common unix tools).
Input file:
ceName: Node-1
processName: tzMgmt
Status: PROCESS_NOT_RUNNING
ceName: Node-2
processName: tzMgmt
Status:... (15 Replies)
I'm attempting to grep for lines formatted like this:
grep -e '^\\",'
Any suggestions as to why this isn't working?
---------- Post updated at 05:03 PM ---------- Previous update was at 04:17 PM ----------
This was my solution:
grep -e '^\'\",'
It's hard to read, but basically I... (4 Replies)
Hello to all,
I'm trying to separate the string "str" using a regex within match function.
The substrings that I want to separate, begin with 22, 23, 24 or 25 and followed by 12 or 14 characters. And I want to
replace 22 with MJS, 23 with UYT, 24 with WER and 25 with PIL.
For this string... (4 Replies)
hi all
I have to read a long cvs file every 4 columns with decimal "3,45" numbers.
The 9th row in this cvs is the first line I need, so it I tail -n+9.
I use sed -e 's/,/./g' to get decimal values with . delimiter.
So far no problem.
Goal is to get two maximum negative forces in ranges... (5 Replies)
hello,
i need a bit of help on how to do this effectively in bash without a lot of extra looping or massive switch/case
i have a long array of M elements and a short array of N elements, so M > N always. M is not a multiple of N.
for case 1, I want to stretch N to fit M
arrayHuge
H = (... (2 Replies)
Hello,
i have a script that i need account_number to match a name.
for exsample :
ACCOUNT_ID=(IatHG8DC7mZbdymSoOr11w KbnlG2j-KRQ0-1_Xk356s8)
and i run a loop curl requst with this the issue is that i want to know on
which account were talking about so bash will know this :
... (4 Replies)
Hello,
I'm looking at simplfying a function that flattens an array, it uses recursion and filters objects by type but this seems to be a waste of resources to me at least, using conditionals like this seems like a bad idea.
The array can be a generic type, int, string, float but not some... (2 Replies)
This may be a dupe, but the problem is not complex,it is simple issue.
I can create an array of string(s) located in positioning parameters for further processing. Works as expected.
Now I like to send / write each string , space separated words , into a file.
Of course I tried... (4 Replies)
Discussion started by: annacreek
4 Replies
LEARN ABOUT 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
/sys/src/cmd/tr.c
SEE ALSO sed(1)TR(1)