Hmmm. You can't tell awk to split only into n fields. You could do this in awk but it'd be a mess of splitting on different variables and substitutions and might still have conditions that break it. But it's easy enough in shell:
shell has a FS-like variable called IFS, the read builtin will split on any character in that string.
If it runs out of variables to store in, it'll store everything remaining into the last variable, field separators included.
I am trying to write a script that will parse out the e-mail address of a person from the name of a file in a directory.
Example:
filename is:
/home/myname/first.middle.last@email.com.xls
I want to extract just the email address and mail the file to that address.
I want to send the... (6 Replies)
How do I alter this command so that it prints only the second comma delimited field from line number 3? Secondly, how do you redirect the output to a variable called TEST?
Thanks
(cat BATCH007.TXT | awk 'BEGIN { FS = "," } ; {print $2 }') (5 Replies)
Hi ,
i have a file a.txt like this:
far
near
veryfar
toonear
typeset var1=veryfar
to extract the text between two strings i use the following command :
awk '/far/,$veryfar/' a.txt
its not working
can nyone tell pls whats wrong in it ?
i doubt can we use variable in awk like this... (3 Replies)
I have a log file monitor script that checks through a log file for a string. I use awk to search the log file, starting at the last checked line, for the specified string and then output the count and the last row number checked. The part of the script that does all the work is here:
set --... (6 Replies)
hi,
I have input file woth records as shown below
OCSMRC_OK,7057348733,+0.00,0,18/05/2010 23:42:19,BellMobility,302610000918553,0006056099,B30,686505,686505,OCS_MRC,+49.14,0,0
,0,0,
OCSPPKB_NOK,4163460120,+1.25,0,18/05/2010... (4 Replies)
Dear all,
I am new to use unix. I run the following command and got the error. Anyone knows how should I modify the command. Thanks a lot!
$
for chr in 'seq 1 23';
do
awk 'BEGIN {print "T","pheno";}{print "M",$2}' out_${chr}.map > dat_${chr}.dat;
done
error message:... (2 Replies)
Hi Experts,
I have a file (file 1) with several columns and I need to create 2 files based on the data of 20th column of file 1.
Criteria 1 : If the 20th field of file1 is empty , copy the entire records to file 2.
I am successfully able to do this with the following awk code :
awk... (2 Replies)
Hi..
have a file as below, appreciate if someone can help on this
143|500| 10| 23353 22131 23355 23354 23358 23352 23357 23350 23349 23351| RAID5
213|1008| 9| 22419 22412 221 22413 22414 22416 22417 22415 22418| RAID6
1088|500| 5| 22243 22240 22244 22242 22241| RAID5
322|1200| 12|... (6 Replies)
Discussion started by: richard0@rediff
6 Replies
LEARN ABOUT SUSE
split
split(n) Tcl Built-In Commands split(n)
__________________________________________________________________________________________________________________________________________________NAME
split - Split a string into a proper Tcl list
SYNOPSIS
split string ?splitChars?
_________________________________________________________________DESCRIPTION
Returns a list created by splitting string at each character that is in the splitChars argument. Each element of the result list will con-
sist of the characters from string that lie between instances of the characters in splitChars. Empty list elements will be generated if
string contains adjacent characters in splitChars, or if the first or last character of string is in splitChars. If splitChars is an empty
string then each character of string becomes a separate element of the result list. SplitChars defaults to the standard white-space char-
acters.
EXAMPLES
Divide up a USENET group name into its hierarchical components:
split "comp.lang.tcl.announce" .
-> comp lang tcl announce
See how the split command splits on every character in splitChars, which can result in information loss if you are not careful:
split "alpha beta gamma" "temp"
-> al {ha b} {} {a ga} {} a
Extract the list words from a string that is not a well-formed list:
split "Example with {unbalanced brace character"
-> Example with {unbalanced brace character
Split a string into its constituent characters
split "Hello world" {}
-> H e l l o { } w o r l d
PARSING RECORD-ORIENTED FILES
Parse a Unix /etc/passwd file, which consists of one entry per line, with each line consisting of a colon-separated list of fields:
## Read the file
set fid [open /etc/passwd]
set content [read $fid]
close $fid
## Split into records on newlines
set records [split $content "
"]
## Iterate over the records
foreach rec $records {
## Split into fields on colons
set fields [split $rec ":"]
## Assign fields to variables and print some out...
lassign $fields
userName password uid grp longName homeDir shell
puts "$longName uses [file tail $shell] for a login shell"
}
SEE ALSO
join(n), list(n), string(n)
KEYWORDS
list, split, string
Tcl split(n)