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UNIX for Dummies Questions & Answers
substr of a file
Post 302255884 by davyp74 on Friday 7th of November 2008 10:00:19 AM
11-07-2008
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10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
What is the more efficient way to do this (awk only and default FS) ?
$ echo "jefe@alm"|awk '{pos = index($0, "@");printf ("USER: %s\n",substr ($0,1,pos-1))}'
USER: jefe
Thx in advance (2 Replies)
Discussion started by: Klashxx
2 Replies
2. UNIX for Dummies Questions & Answers
Hi,
My input file is
41;2;xxxx;yyyyy....
41;2;xxxx;yyyyy....
41;2;xxxx;yyyyy....
..
..
I need to change the second field value from 2 to 1. i.e.,
41;1;xxxx;yyyyy....
41;1;xxxx;yyyyy....
41;1;xxxx;yyyyy....
..
..
Thanks in advance. (9 Replies)
Discussion started by: deepakwins
9 Replies
3. UNIX for Dummies Questions & Answers
i have a variable 200612
the last two digits of this variable should be between 1 and 12, it should not be greater than 12 or less than 1 (for ex: 00 or 13,14,15 is not accepted)
how do i check for this conditions in a unix shell script.
thanks
Ram (3 Replies)
Discussion started by: ramky79
3 Replies
4. Shell Programming and Scripting
Hi,
I have a long string like,
aabab|bcbcbcbbc|defgh|paswd123 dedededede|efef|ghijklmn|paswd234 ghghghghgh|ijijii|klllkkk|paswd345 lmlmlmmm|nononononn|opopopopp|paswd456
This string is devided into one space between substrings. This substrings are,
aabab|bcbcbcbbc|defgh|paswd123... (6 Replies)
Discussion started by: syamkp
6 Replies
5. UNIX for Dummies Questions & Answers
.wysiwyg { PADDING-RIGHT: 0px; PADDING-LEFT: 0px; BACKGROUND: #f5f5ff; PADDING-BOTTOM: 0px; MARGIN: 5px 10px 10px; FONT: 10pt verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; COLOR: #000000; PADDING-TOP: 0px } .wysiwyg A:link { COLOR: #22229c } .wysiwyg_alink { COLOR:... (1 Reply)
Discussion started by: davyp74
1 Replies
6. UNIX for Dummies Questions & Answers
can anybody explain this code?
thanks in advance..:) (6 Replies)
Discussion started by: janani_kalyan
6 Replies
7. Shell Programming and Scripting
Hi Everyone,
# cat a.txt
a;b;c;64O
a;b;c;d;ee;f
# cat a.pl
#!/usr/bin/perl
use strict;
use warnings;
my $tmp3 = ",,a,,b,,c,,d,,e,,f,,";
open(my $FA, "a.txt") or die "$!";
while(<$FA>) {
chomp;
my @tmp=split(/\;/, $_);
if ( ($tmp =~ m/^(64O)/i) || ($tmp... (3 Replies)
Discussion started by: jimmy_y
3 Replies
8. Shell Programming and Scripting
I would like to extract a digit from $0 starting 2,30 to 3,99 or 2.30 to 3.99
Can somebody fix this?
awk --re-interval '{if($0 ~ /{1}{2}/) {print FILENAME, substr($0,index($0,/{1}{2}/) , 4)}}'input
abcdefg sdlfkj 3,29 g. lasdfj
alsdfjasl 2.86 gr. slkjds sldkd
lskdjfsl sdfkj kdjlksj 3,34 g... (4 Replies)
Discussion started by: sdf
4 Replies
9. Shell Programming and Scripting
I have a command like this:
listdb ID923 -l |gawk '{if (substr($0,37,1)==1 && NR == 3)print "YES" else if (substr ($0,37,1)==0 && NR == 3) print "NO"}'
This syntax doesn't work. But I was able to get this to work:
listdb ID923 -l |gawk '{if (substr($0,37,1)==1 && NR == 3)print "YES"}'
... (4 Replies)
Discussion started by: newbie2010
4 Replies
10. UNIX for Dummies Questions & Answers
awk '/^>/{id=$0;next}length>=7 { print id, "\n"$0}' Test.txt
Can I use substr to achieve the same task?
Thanks! (8 Replies)
Discussion started by: Xterra
8 Replies
LEARN ABOUT BSD
ching
CHING(6) Games Manual CHING(6) NAME
ching - the book of changes and other cookies SYNOPSIS
/usr/games/ching [ hexagram ] DESCRIPTION
The I Ching or Book of Changes is an ancient Chinese oracle that has been in use for centuries as a source of wisdom and advice. The text of the oracle (as it is sometimes known) consists of sixty-four hexagrams, each symbolized by a particular arrangement of six straight (---) and broken (- -) lines. These lines have values ranging from six through nine, with the even values indicating the broken lines. Each hexagram consists of two major sections. The Judgement relates specifically to the matter at hand (E.g., "It furthers one to have somewhere to go.") while the Image describes the general attributes of the hexagram and how they apply to one's own life ("Thus the supe- rior man makes himself strong and untiring."). When any of the lines have the values six or nine, they are moving lines; for each there is an appended judgement which becomes signifi- cant. Furthermore, the moving lines are inherently unstable and change into their opposites; a second hexagram (and thus an additional judgement) is formed. Normally, one consults the oracle by fixing the desired question firmly in mind and then casting a set of changes (lines) using yarrow-stalks or tossed coins. The resulting hexagram will be the answer to the question. Using an algorithm suggested by S. C. Johnson, the UNIX oracle simply reads a question from the standard input (up to an EOF) and hashes the individual characters in combination with the time of day, process id and any other magic numbers which happen to be lying around the system. The resulting value is used as the seed of a random number generator which drives a simulated coin-toss divination. The answer is then piped through nroff for formatting and will appear on the standard output. For those who wish to remain steadfast in the old traditions, the oracle will also accept the results of a personal divination using, for example, coins. To do this, cast the change and then type the resulting line values as an argument. The impatient modern may prefer to settle for Chinese cookies; try fortune(6). SEE ALSO
It furthers one to see the great man. DIAGNOSTICS
The great prince issues commands, Founds states, vests families with fiefs. Inferior people should not be employed. BUGS
Waiting in the mud Brings about the arrival of the enemy. If one is not extremely careful, Somebody may come up from behind and strike him. Misfortune. 7th Edition May 20, 1985 CHING(6)