hi all
i wrote a shell script which uses perl script my code is :
>cat filename | while read i
>do
>perl -e 'require "/home/scripts/abc.pl" ; abc("$i")'
>done
perl script used will simply check syntax of Cobol programs but it didn't work for me so i asked my colleague he suggested... (1 Reply)
Hi,
While reading a shell script ,i have come accross the following statements.
script_name_full=$0
***script_name=${script_name_full##*\}
***script_name_noexst=${script_name%%\.ksh}
host_name=`hostname`
***host_name_short=${host_name%%\.*}
can anybody tell me what is the purpose of marked... (5 Replies)
Hi Guys,
I am new to this forum, i have doubt with a awk script. I want to generate a list where i can busiest hour from a list of a data.
05/19/2008 14:27:19 - avg: 0 max: 0 min: 0 samples: 0 total: 0
05/19/2008 14:28:19 - avg: 0 max: 0 min: 0 samples: 0 total: 0
05/19/2008 14:29:19 -... (2 Replies)
Hi,
I want to execute around fifty commands on a server. I want to make it using a single command by placing the commands in a script. How to do this. (4 Replies)
Hi..
When i was just looking throught /etc/inittab file..
i had stuck with some problems that i dont known in shell scripts
Here how the lablel like
si
ca
lo
l1
etc works..
do scripts proivide any label features..
please help...
thanks in advance
esham (3 Replies)
Hi,
I need to execute output one command in csh.
Eg:
#!/bin/csh
set smal = "set count = 1"
grep "Tot" in_file | sed "s/Tot/$smal/g"
In the above script, i have set the smal variale as "set count = 1".
My desired output like:
$echo count
should show as 1. (1 Reply)
Hello ,
Please can someone tell me what exactly happens when the below filehandler is chomped into an array and later mapped.
$lcpLog="logcopy\@".getTimestamp."\log";
open CFg ,"< $lcpcfg";
chomp(@cfg = <CFG>);
close CFG;
@cfg=grep { $_ ne ' ' } map { lc + (split /\s*\/\//) }... (0 Replies)
Anyone please say what is the difference between $var and ${var} in perl
Sometimes $var used and sometimes ${var} used in same program.
Thanks in Advance,
Prabhu
---------- Post updated at 09:34 AM ---------- Previous update was at 05:59 AM ----------
Any one please clarify (1 Reply)
Hi,
In the following perl code:
#!/usr/bin/perl -w
if (open(FILE, "< in_file")) {
while (<FILE>) {
chomp($_);
if ($_ =~ /patt$/) {
my $f = (split(" ", $_));
print "$f\n";
}
}
close FILE;
}
Why changing the "FILE" as... (4 Replies)
Hi,
Please help me to understand the following code:
perl -lne 'print if "$_ " =~ /(5 (?:\d+ ){5})\1/'
What the regular expression "?:" does?
Also, whether the expression "\1" is the same as in sed (i.e) printing the elements inside pair of parentheses? (3 Replies)
Discussion started by: royalibrahim
3 Replies
LEARN ABOUT BSD
join
JOIN(1) General Commands Manual JOIN(1)NAME
join - relational database operator
SYNOPSIS
join [ options ] file1 file2
DESCRIPTION
Join forms, on the standard output, a join of the two relations specified by the lines of file1 and file2. If file1 is `-', the standard
input is used.
File1 and file2 must be sorted in increasing ASCII collating sequence on the fields on which they are to be joined, normally the first in
each line.
There is one line in the output for each pair of lines in file1 and file2 that have identical join fields. The output line normally con-
sists of the common field, then the rest of the line from file1, then the rest of the line from file2.
Fields are normally separated by blank, tab or newline. In this case, multiple separators count as one, and leading separators are dis-
carded.
These options are recognized:
-an In addition to the normal output, produce a line for each unpairable line in file n, where n is 1 or 2.
-e s Replace empty output fields by string s.
-jn m Join on the mth field of file n. If n is missing, use the mth field in each file.
-o list
Each output line comprises the fields specified in list, each element of which has the form n.m, where n is a file number and m is a
field number.
-tc Use character c as a separator (tab character). Every appearance of c in a line is significant.
SEE ALSO sort(1), comm(1), awk(1)BUGS
With default field separation, the collating sequence is that of sort -b; with -t, the sequence is that of a plain sort.
The conventions of join, sort, comm, uniq, look and awk(1) are wildly incongruous.
7th Edition April 29, 1985 JOIN(1)