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Full Discussion: Multiple conditions in IF
Top Forums Shell Programming and Scripting Multiple conditions in IF Post 302974993 by xeccc5z on Tuesday 7th of June 2016 02:05:30 AM
Old 06-07-2016
Linux Multiple conditions in IF

Fellas,

Am new to unix os/ and here the situation , I am trying to write multiple condition statement inside if but it throws me a error

here is my piece of code ,
Code:
if [ [ $file1 ne " " ] ] && [ [ $file2 ne " " ] ] && [[ $file3 ne " " ] ]
then 
commands
fi

error : line 15 : [ : missing `]`

can someone please advise me how to fix it



Moderator's Comments:
Mod Comment Please use code tags as required by forum rules!

Last edited by Scrutinizer; 06-07-2016 at 01:28 PM.. Reason: Added code tags.
 

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ID3(1)							      General Commands Manual							    ID3(1)

NAME
id3 - an ID3 tag editor. SYNOPSIS
id3 [-tTaAycg newdata] file1 [file2 [file3...]] id3 -l file1 [file2 [file3...]] id3 -d file1 [file2 [file3...]] id3 -L DESCRIPTION
id3 is an ID3 v1.1 tag editor. ID3 tags are traditionally put at the end of compressed streamed audio files to denote information about the audio contents. Up to thirty characters of Title, Artist, and Album information can be stored, as well as a 28-character comment, four- digit year, track number up to 255, and an enumerated genre. OPTIONS
-t title Sets the title tag to the first 28 characters of title. -T track Sets the track tag to a number between 0 and 255. -a artist Sets the artist tag to the first 28 characters of artist. -A album Sets the album tag to the first 28 characters of album. -y year Sets the year tag to the first 4 characters of year. -c comment Sets the comment tag to the first 28 characters of comment. -g genre Sets the genre number tag using a genre number or predefined genre label. -l List/view the ID3 tag. -L List all genre tags. -R Use rfc822-style output for tag printout. -d Delete the ID3 tag. BUGS
The ID3 format has some shortcomings. There is a 1 in 16777216 chance of your mp3 having a certain bit-pattern, causing id3 to write over the last 128 bytes of your mp3 upon tag creation. If you add a track number to an ID3 v1.0 tag, the last two characters of the comment string will be truncated. Any bugs found in id3 should be forwarded to the author, Robert Woodcock <rcw@debian.org>. ID3(1)
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