When i run my perl/tk script, a perl window pops up behind the GUI window,, can this be hidden????
Also, can the Icon be changed, the Tk icon in every window??? (1 Reply)
If I use 2 system commands in a script, will one finish before the next one starts? or will it start the first and the second at the same time?
i.e.
system("ps | grep rminer");
system("ls -al | grep 431"); (1 Reply)
Hello,
pkzipc of a certain zip file yeilds the following in shell
PKZIP(R) Version 6.0 FAST! Compression Utility for AIX
Copyright 1989-2002 PKWARE Inc. All Rights Reserved. Registered Version
PKZIP Reg. U.S. Pat. and Tm. Off. Patent No. 5,051,745
Viewing .ZIP: test.zip
Length... (13 Replies)
I copy and paste from the book but this thing is not working.
I cannot figure out what is wrong with myline 9.. can someone please tell me
# cat ./sort4.pl
#!/usr/bin/perl -w
use strict;
use warnings;
my $input = shift;
my $output = shift;
open(IN, '<', $input) or die... (4 Replies)
Below program, I do not get why item I am looking for is , instead of .
When I do $#text, i get the right value for $value1, but when I do , i get somsething4, instead of
somsethingxxxxxxxxxxxxxxxxxxx(which is what I am looking for.
when I do , I get empty.. why? what did I do wrong? can you... (2 Replies)
I fail to see how below answer is 1? can someone explain this for me?
DB<3> $string = "The cat sat on the mat";
DB<4> $animal = ($string =~ m/The (.*) sat/);
DB<5> print $animal;
1 (2 Replies)
I have a question regarding bulding a hash from a file which has below pattern
I thought I could write something like this but clearly my syntax is way off
$/ = "\n\n";
$" = "\n";
open(FILE, file1) || die;
my %keymaster = ( );
while (<FILE>) {
my $topinfo =~... (5 Replies)
I am reading a file in perl script .. during the debug the $linein value is :
linein : +ASM1,sys,||¬ |3Æqúoü;”ט||
from this line I am getting the tmepuser and password from above :
($tmpuser, $pwd) = ($linein =~ /^$server\s*,\s*(+)\s*,\|\|(.+)\|\|/sm);
I am getting $tmpuser and... (2 Replies)
Hello everybody, I am new at the forum and a total newbie when it comes to Unix.
I am trying to see how I can add the ability to kill a user's processes?
I want to add this to my Shel Script Add the code/process into a subroutine.
Also, I would like to use an array to store the list... (0 Replies)
Discussion started by: kinelisch
0 Replies
LEARN ABOUT PLAN9
printf
PRINTF(1) User Commands PRINTF(1)NAME
printf - format and print data
SYNOPSIS
printf FORMAT [ARGUMENT]...
printf OPTION
DESCRIPTION
Print ARGUMENT(s) according to FORMAT, or execute according to OPTION:
--help display this help and exit
--version
output version information and exit
FORMAT controls the output as in C printf. Interpreted sequences are:
" double quote
\ backslash
a alert (BEL)
backspace
c produce no further output
e escape
f form feed
new line
carriage return
horizontal tab
v vertical tab
NNN byte with octal value NNN (1 to 3 digits)
xHH byte with hexadecimal value HH (1 to 2 digits)
uHHHH Unicode (ISO/IEC 10646) character with hex value HHHH (4 digits)
UHHHHHHHH
Unicode character with hex value HHHHHHHH (8 digits)
%% a single %
%b ARGUMENT as a string with '' escapes interpreted, except that octal escapes are of the form or NNN
%q ARGUMENT is printed in a format that can be reused as shell input, escaping non-printable characters with the proposed POSIX $''
syntax.
and all C format specifications ending with one of diouxXfeEgGcs, with ARGUMENTs converted to proper type first. Variable widths are han-
dled.
NOTE: your shell may have its own version of printf, which usually supersedes the version described here. Please refer to your shell's
documentation for details about the options it supports.
AUTHOR
Written by David MacKenzie.
REPORTING BUGS
GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
Report printf translation bugs to <http://translationproject.org/team/>
COPYRIGHT
Copyright (C) 2017 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
SEE ALSO printf(3)
Full documentation at: <http://www.gnu.org/software/coreutils/printf>
or available locally via: info '(coreutils) printf invocation'
GNU coreutils 8.28 January 2018 PRINTF(1)