11-06-2011
delete lines starting with a pattern
i have a file sample.txt containing
Quote:
123
hii 123
hello
123
123
hii
hello
i want to delete lines starting with 123 neglecting spaces and tabs.
but not lines containing 123. i.e.
i want files sample.txt as
help me
thanxx
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi There!
My final task for today is to delete lines starting with certain numbers
for e.g., my text block is
and i want to delete all lines starting with 11 or 17 or 21
I know i can use multiple sed commands like
sed '/^11,/d' <filename>
sed '/^17,/d' <filename>
sed '/^21,/d'... (2 Replies)
Discussion started by: orno
2 Replies
2. Shell Programming and Scripting
Hi,
I have file 1.txt with following entries as shown:
0152364|134444|10.20.30.40|015236433
0233654|122555|10.20.30.50|023365433
**
**
**
In file 2.txt I have the following entries as shown:
0152364|134444|10.20.30.40|015236433
0233654|122555|10.20.30.50|023365433... (4 Replies)
Discussion started by: imas
4 Replies
3. Shell Programming and Scripting
Hi,
I have a file such as:
---
>contig00001 length=35524 numreads=2944
gACGCCGCGCGCCGCGGCCAGGGCTGGCCCA
CAGGCCGCGCGGCGTCGGCTGGCTGAG
>contig00002 length=4242 numreads=43423
ATGCCGAAGGTCCGCCTGGGGCTGG
CGCCGGGAGCATGTAGCG
---
I would like to concatenate the lines not starting with ">"... (9 Replies)
Discussion started by: s052866
9 Replies
4. Shell Programming and Scripting
Hello sed gurus. I am using ksh on Sun and have a file created by concatenating several other files. All files contain header rows. I just need to keep the first occurrence and remove all other header rows.
header for file
1111
2222
3333
header for file
1111
2222
3333
header for file... (8 Replies)
Discussion started by: gary_w
8 Replies
5. Shell Programming and Scripting
Hi, just tried some script, awk, sed for the last 2 hours and now need help.
Let's say I have a huge file of 800,000 lines like this :
It's a tedious job to look through it, I'd like to remove those useless lines in it as there's a few thousands :
Or to be even more precise :
if line1 =... (6 Replies)
Discussion started by: Zurd
6 Replies
6. Shell Programming and Scripting
Platform : RHEL 5.8
I have text file called myapplication.log . In this file, I have around 800 lines which start with the followng three strings
PWRBRKER-3493
PWRBRKER-7834
SCHEDULER-ERROR
How can I delete these lines in one go ? (13 Replies)
Discussion started by: omega3
13 Replies
7. Shell Programming and Scripting
Dear all,
I would like to delete even lines starting with "N" together with their respective titles which are actually odd lines.
Below is the example of input file. I would like to remove line 8 and 12 together with its title line, i.e., line 7 and 11, respectively.... (2 Replies)
Discussion started by: huiyee1
2 Replies
8. UNIX for Dummies Questions & Answers
Hi all!
Thanks for taking the time to view this!
I want to grep out all lines of a file that starts with pattern 1 but also does not match with the second pattern.
Example:
Drink a soda
Eat a banana
Eat multiple bananas
Drink an apple juice
Eat an apple
Eat multiple apples
I... (8 Replies)
Discussion started by: demmel
8 Replies
9. Shell Programming and Scripting
Tool used : VIM editor that comes with RHEL 7.4
I have a file like below. It has around 300 lines like below. All the lines starting with # are comments.
For readability, I removed all lines starting with # from vi (vim editor) using the command :g/^#/d . It seemed to have worked.
But, which... (8 Replies)
Discussion started by: John K
8 Replies
10. Shell Programming and Scripting
Shell : bash
OS : RHEL 6.8
I have a file like below.
$ cat pattern.txt
hello
txt1
txt2
txt3
some other text
txt4
I want to remove all lines in this file except the ones starting with txt . How can I do this ? (4 Replies)
Discussion started by: omega3
4 Replies
LEARN ABOUT DEBIAN
algorithm::checkdigits::m11_010
CheckDigits::M11_010(3pm) User Contributed Perl Documentation CheckDigits::M11_010(3pm)
NAME
CheckDigits::M11_010 - compute check digits AHV number (CH)
SYNOPSIS
use Algorithm::CheckDigits;
$ahv = CheckDigits('ahv_ch');
if ($ahv->is_valid('123.45.678.113')) {
# do something
}
$cn = $ahv->complete('123.45.678.11');
# $cn = '123.45.678.113'
$cd = $ahv->checkdigit('123.45.678.113');
# $cd = '3'
$bn = $ahv->basenumber('123.45.678.113');
# $bn = '123.45.678.11';
DESCRIPTION
ALGORITHM
1. Beginning left every digit is weighted with 5,4,3,2,7,6,5,4,3,2.
2. The weighted digits are added.
3. The sum from step 2 is taken modulo 11.
4. The checkdigit is 11 minus the sum from step 3. Is the difference 10, the number won't be taken. If the difference is 11, the
checkdigit is 0.
METHODS
is_valid($number)
Returns true only if $number consists solely of numbers and hyphens and the two digits in the middle are valid check digits according
to the algorithm given above.
Returns false otherwise,
complete($number)
The check digit for $number is computed and inserted into the middle of $number.
Returns the complete number with check digit or '' if $number does not consist solely of digits, hyphens and spaces.
basenumber($number)
Returns the basenumber of $number if $number has a valid check digit.
Return '' otherwise.
checkdigit($number)
Returns the check digits of $number if $number has valid check digits.
Return '' otherwise.
EXPORT
None by default.
AUTHOR
Mathias Weidner, <mathias@weidner.in-bad-schmiedeberg.de>
SEE ALSO
perl, CheckDigits, www.pruefziffernberechnung.de,
perl v5.10.0 2008-05-17 CheckDigits::M11_010(3pm)