var substitution in a reg expr ? Post: 80601

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Text replace by position instead of reg expr.

Can we replace the contents the of the rows of file, from one position to another position by mentioning, some start position & the width?

2. Shell Programming and Scripting

Var substitution in awk - not working as expected

countA=`awk '/X/''{print substr($0,38,1)}' fName | wc -l` countB=`wc -l fName | awk '{print int($1)}'` echo > temp ratio=`awk -va=$countA -vc=$countB '{printf "%.4f", a/c}' temp` After running script for above I am getting an error as : awk: 0602-533 Cannot find or open file -vc=25. The...

3. UNIX for Dummies Questions & Answers

scipt dividing strings /reg expr

Hello! I've got txt-file containing lots of data in sentences like this: ;;BA;00:00:03:00;COM;CLOQUET-LAFOLLYE;SIMON; but sometime more than on in a line like this: ;;BA;00:00:03:00;COM;CLOQUET-LAFOLLYE;SIMON;;;BA;00:00:03:00;REA;RTL9;;;;BAC;:00;TIT;SEMAINE SPECIALE ~SSLOGAN~T DVD;; ...

4. Shell Programming and Scripting

PERL: Simple reg expr validate 6 digits number

Hi there! I'm trying to validate a simple 6 digits number with reg expr. I ONLY want 6 digits so when i type 7 digits the script should no validate the number. I've write this code: #!/usr/bin/perl while(<STDIN>){ if($_=~/\d{6}/){ print "Bingo!\n"; ...

5. Shell Programming and Scripting

print column that match reg expr

Hi all, I want to cut a column which match the regular expression "beta", if I don't know the column number? cat test alpha;beta;gamma 11;22;33 44;55;66 77;88;99 should be command .... beta 22 55

6. Shell Programming and Scripting

HowTo: reg expr doing grep "timestamp>$DesiredTime" logfile ?

I know I asked a similar question but I want to know if there is a regular expression existing that with a korn shell cmd, finds any timestamp data records in a file where it is greater then a timestamp in a shell variable ? something like : grep all records where it has a timestamp >...

7. Solaris

diff b/w /var/log/syslog and /var/adm/messages

hi sirs can u tell the difference between /var/log/syslogs and /var/adm/messages in my working place i am having two servers. in one servers messages file is empty and syslog file is going on increasing.. and in another servers message file is going on increasing but syslog file is...

8. Shell Programming and Scripting

perl: reg.expr: combine starting and ending removal in one exprecion

Hello, I am new in perl and in regular exprecion; so I am looking for help (or an experienced advise.) The target is a triming spaces from a string: i.e., remove spases from begining and from end of a string. One of main point of a searched solution is performance: for current task it is...

9. Shell Programming and Scripting

test expr VS [ expr ]

What is the difference between test expr VS . For example : if test 5 -eq 6 echo "Wrong" and if echo "Wrong" bot will give the same output as Wrong. Now, what is the difference between these two? though they are producing the same result why we need two? Any answer will be...

10. Programming

How to prevent incorrect string using reg expr in Java?

Hi All, I need your input on how to mask out / ignore a string that does not match a working regular expression (continually refining) pattern in Java. Below is the code snippet which is picking up all the lines with the correct regular expression string except one known so far: public...

LEARN ABOUT DEBIAN

combine

COMBINE(1)																COMBINE(1)

NAME

       combine - combine sets of lines from two files using boolean operations

SYNOPSIS

       combine file1 and file2

       combine file1 not file2

       combine file1 or file2

       combine file1 xor file2

       _ file1 and file2 _

       _ file1 not file2 _

       _ file1 or file2 _

       _ file1 xor file2 _

DESCRIPTION

       combine combines the lines in two files. Depending on the boolean operation specified, the contents will be combined in different ways:

       and Outputs lines that are in file1 if they are also present in file2.

       not Outputs lines that are in file1 but not in file2.

       or  Outputs lines that are in file1 or file2.

       xor Outputs lines that are in either file1 or file2, but not in both files.

       "-" can be specified for either file to read stdin for that file.

       The input files need not be sorted, and the lines are output in the order they occur in file1 (followed by the order they occur in file2
       for the two "or" operations). Bear in mind that this means that the operations are not commutative; "a and b" will not necessarily be the
       same as "b and a". To obtain commutative behavior sort and uniq the result.

       Note that this program can be installed as "_" to allow for the syntactic sugar shown in the latter half of the synopsis (similar to the
       test/[ command). It is not currently installed as "_" by default, but you can alias it to that if you like.

SEE ALSO

       join(1)

AUTHOR

       Copyright 2006 by Joey Hess <joey@kitenet.net>

       Licensed under the GNU GPL.

moreutils							    2012-04-09								COMBINE(1)