Yes, usually they are. But the second form will upset the Perl debugger should you ever need it, while the former won't. Also, in extreme cases the warnings pragma can be disabled for short blocks, while the switch can't (to the best of my knowledge).
Quote:
Originally Posted by jimmy_y
(and why today i cannot see reward point icon anymore? to thanks those answers)
Hi,
I want to get script or command in Sun Unix which matches first fields of both the files and print the feilds of one files, example may make it more clear.
InputFile1
==================
Alex,1,fgh
Menthos,45454,toto
Gothica,855,ee
Zenie4,77,gg
Salvatore,66,oo
Dhin,1234,papapa... (3 Replies)
First, thanks for the help in previous posts... couldn't have gotten where I am now without it!
So here is what I have, I use AWK to match $1 and $2 as 1 string in file1 to $1 and $2 as 1 string in file2. Now I'm wondering if I can extend this AWK command to incorporate the following:
If $1... (4 Replies)
I have the below 2 files:
1) Third field from file1.txt should be compared to the first field of lookup.txt.
2) If match found then third field, file1.txt should be substituted with the second field from lookup.txt.
3)Else just print the line from file1.txt.
File1.txt:... (4 Replies)
If $1 in file1 matches $2 in file2. Then the value in $2 of file2 is updated to $1"."$2 of file2. The awk seems to only match the two files but not update. Thank you :).
awk
awk 'NR==FNR{A ; next} $1 in A { $2 = a }1' file1 file2
file1
name version
NM_000593 5
NM_001257406... (3 Replies)
I am trying to look for $2 of file1 (skipping the header) in $2 of file2 (skipping the header) and if they match and the value in $10 is > 30 and $11 is > 49, then print the line from file1 to a output file. If no match is foung the line is not printed. Both the input and output are tab-delimited.... (3 Replies)
I am trying to use awk to match two files that are tab-delimited. When a match is found between file1 $1 and file2 $4, $4 in file2 is updated using the $2 value in file1. If no match is found then the next line is processed. Thank you :).
file1
uc001bwr.3 ADC
uc001bws.3 ADC... (4 Replies)
Hi All,
Greetings!
I have a file of 40000+ lines with different entries, I need matching entries filterd out to their files based on first filed pattern for the matching :
For example:
All server1 entries (in field1) to come together with its path in 2nd field.
The best output I want... (9 Replies)
In the perl below I am trying to set/update the value of $14 (last field) in file2, using the matching NM_ in $12
or $9 in file2 with the NM_ in $2 of file1.
The lengths of $9 and $12 can be variable but what is consistent is the start pattern will always be NM_ and the end pattern is always
;... (4 Replies)
I need a script to check the records in a file , if any value match transfer the record in error.txt file.
1- If any of the any field value is NULL(nothing in this field)
Record1|Record2|Record3|Record4|Record5|DATE1|DATE2
Example:
11111111|22222222|NULL|12|444|27042018|27042018... (8 Replies)
Discussion started by: vivekn
8 Replies
LEARN ABOUT DEBIAN
mklnim
MKLNIM(1) General Commands Manual MKLNIM(1)NAME
mklnim - make Linux Netinstall Image
SYNOPSIS
mklnim outputfile [path-to-cdrom]
DESCRIPTION
mklnim is a shell script that takes a SuSE, TurboLinux or a RedHat CDROM, or equivalent disk directory, and creates a network bootable
image (NBI) that can be used with Etherboot (http://etherboot.sourceforge.net/) or Netboot (http://www.han.de/~gero/netboot.html). This
NBI, when booted via the network, will make the target computer behave just as if a CDROM boot (TurboLinux), or a floppy boot (RedHat and
SuSE) had been selected. A conventional install can be done from this point onwards.
There are several occasions when this technique is useful: 1. It can be used to quickly boot a target computer when the floppy loading is
very slow. 2. In the case of TurboLinux, it loads the CDROM initial ramdisk which does not require any further floppy loading. In the case
of RedHat, it only loads the floppy initial ramdisk which does not contain the material in the supplementary floppy, and may require more
floppy insertion. 3. It can start the install from a floppy of any size, not just 1.4 MB, or even from a floppyless machine, if one has a
boot ROM (providing no further floppy access is required). 4. It could be used as part of an automatic installation process.
Naturally, all this assumes that the infrastructure for diskless booting (bootp and tftp servers) has been set up.
BUGS
If supplementary floppies are required, this script doesn't include that material in the network boot image. Please feel welcome to fix
this problem.
SEE ALSO
Etherboot tutorial at http://etherboot.sourceforge.net/
COPYRIGHT
mklnim is under the GNU Public License
AUTHOR
Ken Yap (ken_yap@users.sourceforge.net)
DATE
Version 0.4 April 2000
25 April 2000 MKLNIM(1)