07-04-2016
DON'T mess around manually with important system files (like /etc/passwd), as
this thread may teach. And even less so do automatic mass changes with scripts... Use the respective system provided tools, e.g. usermod.
If you do, you should know EXACTLY what you are doing and how to reverse possibly wrong-going modifications.
This User Gave Thanks to RudiC For This Post:
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I have to replace a field in one file with a field from other file.
I came across this awk command to replace a field with one string
nawk -F'|' -v OFS='|' '$2="replace"' temp2 > temp3
I need to have something like cut -f2 -d "|" temp1 (a field from other file) instead of 'replace'
Is... (8 Replies)
Discussion started by: savant
8 Replies
2. Shell Programming and Scripting
Howdy.
I know this is most likely possible using sed or awk or grep, most likely a combination of them together, but how would one go about running a grep like command on a file where you only try to match your pattern to the second field in a line, space delimited?
Example:
You are... (3 Replies)
Discussion started by: LordJezoX
3 Replies
3. Shell Programming and Scripting
hi
i have file as below , i want to add duplicate records like bell_bb to one record with valuve as 15 ( addition of both )
any oneline awk script to achive this ?
header 0
CAMPAIGN_NAME 1
Bell_BB 14
Bell_MONTHLY 803
SOLO_UNBEATABLE 644
Bell_BB 1
Bell_MONTHLY 25
SOLO_UNBEATABLE... (4 Replies)
Discussion started by: raghavendra.cse
4 Replies
4. Shell Programming and Scripting
i have something like this,
cat filename.txt
hui this si s"dfgdfg" omeone ipaddress="10.19.123.104" wel hope this works
i want to replace only 10.19.123.104 with different ip say 10.19.123.103
i tried this
sed -i "s/'ipaddress'/'ipaddress=10.19.123.103'/g" filename.txt
... (1 Reply)
Discussion started by: vivek d r
1 Replies
5. Shell Programming and Scripting
Hi Friends,
Need Help. I have file1.txt as
File1.txt
|123|A|7267|Hyder|Cross|Sell|7801
|995|A|7051|2008|Lunar|New|Year|Promotion|7801
|996|A|7022|Q108|Targ|Prospect|&|SSCC|Savings|Promo|7801
|997|A|7182|Q1|Feb-Apr|08|Credit|ITA|PA|SBA|Campaign|7801
File2.txt... (7 Replies)
Discussion started by: i150371485
7 Replies
6. Shell Programming and Scripting
Hi,
I am trying with the below Perl command to print the first field when the second field matches the given pattern:
perl -lane 'open F, "< myfile"; for $i (<F>) {chomp $i; if ($F =~ /patt$/) {my $f = (split(" ", $i)); print "$f";}} close F' dummy_file
I know I can achieve the same with the... (7 Replies)
Discussion started by: royalibrahim
7 Replies
7. Shell Programming and Scripting
Hi all,
I have a requirement to replace a field with a character as per the length of the field.
Suppose i have a file where second field is of 20 character length. I want to replace second field with 20 stars (*). like ********************
As the field is not a fixed one, i want to do the... (2 Replies)
Discussion started by: gani_85
2 Replies
8. Linux
I have a .CSV file (file.csv) whose data are all enclosed in double quotes. Sample format of the file is as below:
column1,column2,column3,column4,column5,column6, column7, Column8, Column9, Column10
"12","B000QRIGJ4","4432","string with quotes, and with a comma, and colon: in... (3 Replies)
Discussion started by: dhruuv369
3 Replies
9. Shell Programming and Scripting
Hello,
I have a text file in the below format:
Source Destination State Lag Status
CQA02W2K12pl:D:\CAQA ... (10 Replies)
Discussion started by: pocodot
10 Replies
10. Shell Programming and Scripting
I am trying to remove lines in the target.txt file if $5 before the - in that file matches sorted_list. I have tried grep and awk. Thank you :).
grep
grep -v -F -f targets.bed sort_list
grep -vFf sort_list targets
awk
awk -F, '
> FILENAME == ARGV {to_remove=1; next}
> ! ($5 in... (2 Replies)
Discussion started by: cmccabe
2 Replies
LEARN ABOUT SUSE
uri::heuristic
URI::Heuristic(3) User Contributed Perl Documentation URI::Heuristic(3)
NAME
URI::Heuristic - Expand URI using heuristics
SYNOPSIS
use URI::Heuristic qw(uf_uristr);
$u = uf_uristr("perl"); # http://www.perl.com
$u = uf_uristr("www.sol.no/sol"); # http://www.sol.no/sol
$u = uf_uristr("aas"); # http://www.aas.no
$u = uf_uristr("ftp.funet.fi"); # ftp://ftp.funet.fi
$u = uf_uristr("/etc/passwd"); # file:/etc/passwd
DESCRIPTION
This module provides functions that expand strings into real absolute URIs using some built-in heuristics. Strings that already represent
absolute URIs (i.e. that start with a "scheme:" part) are never modified and are returned unchanged. The main use of these functions is to
allow abbreviated URIs similar to what many web browsers allow for URIs typed in by the user.
The following functions are provided:
uf_uristr($str)
Tries to make the argument string into a proper absolute URI string. The "uf_" prefix stands for "User Friendly". Under MacOS, it
assumes that any string with a common URL scheme (http, ftp, etc.) is a URL rather than a local path. So don't name your volumes after
common URL schemes and expect uf_uristr() to construct valid file: URL's on those volumes for you, because it won't.
uf_uri($str)
Works the same way as uf_uristr() but returns a "URI" object.
ENVIRONMENT
If the hostname portion of a URI does not contain any dots, then certain qualified guesses are made. These guesses are governed by the
following environment variables:
COUNTRY The two-letter country code (ISO 3166) for your location. If the domain name of your host ends with two letters, then it is
taken to be the default country. See also Locale::Country.
HTTP_ACCEPT_LANGUAGE, LC_ALL, LANG
If COUNTRY is not set, these standard environment variables are examined and country (not language) information possibly found in
them is used as the default country.
URL_GUESS_PATTERN
Contains a space-separated list of URL patterns to try. The string "ACME" is for some reason used as a placeholder for the host
name in the URL provided. Example:
URL_GUESS_PATTERN="www.ACME.no www.ACME.se www.ACME.com"
export URL_GUESS_PATTERN
Specifying URL_GUESS_PATTERN disables any guessing rules based on country. An empty URL_GUESS_PATTERN disables any guessing that
involves host name lookups.
COPYRIGHT
Copyright 1997-1998, Gisle Aas
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
perl v5.12.1 2010-03-14 URI::Heuristic(3)