The braces are used when there are multiple commands you want to execute after || but you could also write this as an "if then else" if that's more convenient. Then it's easier to add commands, too.
The braces and the semicolons are not necessary here, because everything up to "fi" (or "else") is executed when the condition matches. The || { stuff; } syntax is just basically a shorthand for when you want to cram stuff into a one-liner.
Hi friends, :)
In a shell script i found the following if condition.
echo -n "Which version of $1 do you want to restore ('0' to quit)? : "
read desired
if ${desired:=1} -ge $index ] ; then
echo "$0: Restore canceled by user: index value too big." >&2
exit 1
fi
Can... (1 Reply)
i have a paramter data_date in which i am passing a string value.i want to find out another paramter file_date from this.the logic is given below
if day of data_date = sunday or monday
then
file_date=data_date-1
else
file_date=data_date-2
i am passing data_date as 20061027.
how can i... (3 Replies)
Hi,
I am trying to execute this command, but is it not working, says "`;' unexpected"
eval $lgrep $SAM_CMD ; if ; then ; echo "No Error" ; fi
What i want is, return the command output, if it is non zero, say "No Error".
Thanks, John. (21 Replies)
Executed the following if conditions .. and got different results .
only (( )) gave correct o/p with all scenarios .
Can anybody please let me know what is the difference between and ] and ((condition)) when used with if condition.
And why each condition gave different result.
1.... (2 Replies)
hi,
I have some problems in my simple script about the redirect echo stdout command inside a condition. Why is the echo command inside the elif still execute in the else command
Here are my simple script
After check on the two diff output the echo stdout redirect is present in two diff... (3 Replies)
HI
My doubt may be basic one but I need to get it clarified..
When i use "if" condition that checks for many AND, OR logical conditions
like
if ]; then
return 0
fi
Even the if condition fails it returns as zero.. Any clue..
But if i add else condition like
if ]; ... (2 Replies)
Hi all
Unix newbie - please be gentle
Am modifying an existing script to error trap a variable with a length of 0
#!/bin/bash
ipfile='/var/data/bin/ipaddress'
] && ipold="$(< "$ipfile" )"
ipnew="$( wget -q -O - checkip.dyndns.org | sed -e 's/.*Current IP Address: //;s/<.*$//' )"
#... (6 Replies)
o/p of my command is given below
My requirement is
if Pnumber is 0 then
stabilization.Build.2013
else
stabilization.PBuild.2013.3 (11 Replies)
Discussion started by: nikhil jain
11 Replies
LEARN ABOUT DEBIAN
pescetti
PESCETTI(1) General Commands Manual PESCETTI(1)NAME
pescetti -- Pseudo-Duplimate Generator
SYNOPSIS
pescetti
DESCRIPTION
This manual page documents briefly the pescetti command.
OPTIONS
Here are a list of the available options and what they do. You must specify exactly one from --demo, --generate or --load.
--help Prints the help text
--demo Demonstration mode. Generates one hand with permutations and the tutorial for how to use them.
--generate=N
Generate N random boards
--load=boards.txt
Load boards+analysis from boards.txt
--load-dds=boards.dds
Load boards from boards.dds in dds format
--load-analysis=tricks.txt
Load analysis from tricks.txt
--permutations=permutations.txt
Generate the permutations and save them to the given file
--curtains=curtains.txt
Save curtain cards to file curtains.txt
--save=boards.txt
Save the boards+analysis to boards.txt
--save-dds=boards.dds
Save the boards to boards.dds in dds format
--save-analysis=tricks.txt
Save the analysis to tricks.txt
--format=html|txt|pdf
Set the output mode to the given format
--title=title
Set the title for the output
--output=hands.txt
Print the hands to hands.txt, rather than to standard output
--stats Generate statistics about the set of boards; included in the hands output
--analyze Run the dds analyzer on the boards and print the resulting numberof tricks (warning SLOW)
--criteria=
A list of criteria to apply to each generated hand to generate specific hand types. The list should be space separated and each
item may be suffixed with a colon and a (fractional) probability value which can be used to weight the criteria.
E.g. --criteria="weaknt:0.8 strongnt:0.5"
Valid criteria are: unbalanced weaknt strongnt twont strongtwo weaktwo three twoclubs 4441 singlesuit twosuits partscore game
slam game-invite slam-invite jumpshift jumpfit splinter bacon weird
--probability=factor
Generate hands matching the criteria with only the given probability. Factor is in the range 0 to 1. On each attempt to generate
a board it is rejected if it doesn't match the criteria with the given probability. A factor of about 0.8 gives roughly half
matching boards
AUTHOR
This manual page was written by Matthew Johnson <debian@matthew.ath.cx>. Permission is granted to copy, distribute and/or modify this docu-
ment under the terms of the GNU General Public License, Version 2 as published by the Free Software Foundation.
On Debian systems, the complete text of the GNU General Public License can be found in /usr/share/common-licenses/GPL.
PESCETTI(1)