|
|
Sponsored Content
Top Forums
Shell Programming and Scripting
Simpe echo
Post 302850295 by Corona688 on Wednesday 4th of September 2013 12:52:52 PM
09-04-2013
|
|
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
I am trying to glue 4 comma separated values files side by side into one. Right now, I'm working based on this:
i="1"
while #files are 425 lines
do
echo `head -$i file1.csv | tail -1`,`head -$i file2.csv | tail -1`,`head -$i file3.csv | tail -1`,`head -$i file4.csv | tail -1` >> finished.csv... (2 Replies)
Discussion started by: saintdesy
2 Replies
2. Solaris
Hi anyone know...
ID1=1234
ID2=2345
ID3=3456
count=1
while
do
echo $(ID$count) --> i would like the out put to be 1234
count=$((count + 1))
done
exit 0
if i would like to echo ID1 then it will should 1234567. how should i echo
like this would not works -> echo $(ID$count)
... (7 Replies)
Discussion started by: summerpeh
7 Replies
3. UNIX for Dummies Questions & Answers
Is there a way to get echo to make newlines without using any type of quotes? I've done a lot of searches and went into my Linux book to no avail. I'm trying to write five separate lines to a file. I can get echo to accept all five lines like this
echo \
\this is line 1\
\this is line 2\ >... (6 Replies)
Discussion started by: Trekker182
6 Replies
4. Shell Programming and Scripting
There is an output file which has been generted by Concatenating 4 differnt files.
like four files (a,b,c,d) contains output of different lenght and line number.
Suppose file a contains 10 records and all ten records are of constant varible lenght (let us say 12)
same is the case with rest... (5 Replies)
Discussion started by: jojo123
5 Replies
5. Shell Programming and Scripting
So in my shell i execute:
{ while true; do echo string; sleep 1; done } | read line This waits one second and returns.
But
{ while true; do /bin/echo string; sleep 1; done } | read line continues to run, and doesn't stop until i kill it explicitly.
I have tried this in bash as well as zsh,... (2 Replies)
Discussion started by: ulidtko
2 Replies
6. UNIX for Dummies Questions & Answers
Bit of a weird one i suppose, i want to use an echo inside an echo... For example...
i have a script that i want to use to take users input and create another script. Inside this script it creates it also needs to use echos...
echo "echo "hello"" >$file
echo "echo "goodbye"" >$file
... (3 Replies)
Discussion started by: mokachoka
3 Replies
7. Shell Programming and Scripting
echo `echo ` doesn't echoes anything. And it's logic. But
echo `echo `echo ` ` does echoes "echo". What's the logic of it? the `echo `echo ` inside of the whole (first) echo, echoes nothing, so the first echo have to echo nothing but echoes "echo"
(too much echoing :P):o (2 Replies)
Discussion started by: hakermania
2 Replies
8. UNIX Desktop Questions & Answers
#!/bin/bash
date
echo $_
What does $_ will print? (3 Replies)
Discussion started by: kkalyan
3 Replies
9. Shell Programming and Scripting
I came across and unexpected behavior with redirections in tcsh. I know, csh is not best for redirections, but I'd like to understand what is happening here.
I have following script (called out_to_streams.csh):
#!/bin/tcsh -f
echo Redirected to STDOUT > /dev/stdout
echo Redirected to... (2 Replies)
Discussion started by: marcink
2 Replies
10. UNIX for Dummies Questions & Answers
Hi guys,
Been messing around with shell programming for a couple of days and I found something that was pretty odd in the behavior of the echo command. Below is an example-:
When I type the following in my /home directory from my lxterminal in Debian-:
echo "`ls -l`"
I get the... (2 Replies)
Discussion started by: sreyan32
2 Replies
LEARN ABOUT DEBIAN
perl::critic::policy::valuesandexpressions::prohibitquotesasquot
Perl::Critic::Policy::ValuesAndExpressions::ProhibitQuPerl::Critic::Policy::ValuesAndExpressions::ProhibitQuotesAsQuotelikeOperatorDelimiters(3pm) NAME
Perl::Critic::Policy::ValuesAndExpressions::ProhibitQuotesAsQuotelikeOperatorDelimiters - Don't use quotes ("'", """, "`") as delimiters for the quote-like operators. AFFILIATION
This Policy is part of the core Perl::Critic distribution. DESCRIPTION
With the obvious exception of using single-quotes to prevent interpolation, using quotes with the quote-like operators kind of defeats the purpose of them and produces obfuscated code, causing problems for future maintainers and their editors/IDEs. $x = q"q"; #not ok $x = q'q'; #not ok $x = q`q`; #not ok $x = qq"q"; #not ok $x = qr"r"; #not ok $x = qw"w"; #not ok $x = qx`date`; #not ok $x =~ m"m"; #not ok $x =~ s"s"x"; #not ok $x =~ tr"t"r"; #not ok $x =~ y"x"y"; #not ok $x =~ m'$x'; #ok $x =~ s'$x'y'; #ok $x = qr'$x'm; #ok $x = qx'finger foo@bar'; #ok CONFIGURATION
This policy has three options: "single_quote_allowed_operators", "double_quote_allowed_operators", and "back_quote_allowed_operators", which control which operators are allowed to use each of "'", """, "`" as delimiters, respectively. The values allowed for these options are a whitespace delimited selection of the "m", "q", "qq", "qr", "qw", "qx", "s", "tr", and "y" operators. By default, double quotes and back quotes (backticks) are not allowed as delimiters for any operators and single quotes are allowed as delimiters for the "m", "qr", "qx", and "s" operators. These defaults are equivalent to having the following in your .perlcriticrc: [ValuesAndExpressions::ProhibitQuotesAsQuotelikeOperatorDelimiters] single_quote_allowed_operators = m s qr qx double_quote_allowed_operators = back_quote_allowed_operators = SUGGESTED BY
Michael Schwern AUTHOR
Elliot Shank "<perl@galumph.com>" COPYRIGHT
Copyright (c) 2007-2011 Elliot Shank. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. The full text of this license can be found in the LICENSE file included with this module. perl v5.14.2 Perl::Critic::Policy::ValuesAndExpressions::ProhibitQuotesAsQuotelikeOperatorDelimiters(3pm)