Greetings -
I am a newbie in shell scripts. I have been thru the whole forum but there has been no similar query posed.
The objective of my system is to have a unified filebase system. I am using RSync to synchronise files between the location & central server with both of them having the... (4 Replies)
Hi,
I have a file containing the following data:
junk123junk723itemcode001qty01price10total10junkjunk
junk123junk723itemcode002qty02price10total20junkjunk
..
..
..
could be 5000+ lines
I have an algo and need a code to implement this:
1. Linecount = wc -l (should give 5000)
2. For i... (1 Reply)
Hiiii Friends
I have 2 files with huge data. I want to compare this 2 files & if they hav same set of vales in specific rows & columns i need to get that value from one file & replace it in other.
For example: I have few set data of both files here:
a.dat:
PDE-W 2009 12 16 5 29 11.11 ... (10 Replies)
Friends,
i have two huge complex files (for eg :A & B)as output ,
the sample contents of the files are as follows :
A
==
ID,DATE,SUM1,SUM2,TOTAL(SUM1+2)
A5066,20/04/2010,25000,50000,75000
A5049,20/04/2010,25000,60000,85000
B
==
ID,DATE,SUM1,SUM2,TOTAL(SUM1+2)... (2 Replies)
Hi Friends,
I'm a great fan of this forum... it has helped me tone my skills in shell scripting. I have a challenge here, which I'm sure you guys would help me in achieving...
File A has a list of job ids and I need to compare this with the File B (*.log) and File C (extend *.log) and copy... (6 Replies)
Hi All,
I have written a shell script that creates a backup of my MySQL database. The script performs the following functions:
Creates a Backup of the MySQL database
Compresses the Backup
Copies the Backup to a Remote Server
Send an E-Mail displaying the size of the Backup
Removes any... (6 Replies)
Hi
Please help me to compare two files and output into a new file
file1.txt
15114933 |4001
15291649 |933502
15764675 |4316
15764678 |4316
15761974 |282501
15673104 |933505
15673577 |933505
15673098 |933505
15673096 |933505
15673092 |933505
15760705 ... (13 Replies)
Hi All
I want to compare 2 files using awk and get output of content which is not matching
I have 2 files
a.txt
123
456
780
143
b.txt
A|B|C|167|D|E
C|K|D|123|D|E
A|B|D|789|G|F
C|D|G|143|A|B
Not matching line from b.txt
O/P
A|B|C|167|D|E
A|B|D|789|G|F (3 Replies)
Shell script logic
Hi
I have 2 input files like with file 1 content as (file1)
"BRGTEST-242" a.txt "BRGTEST-240" a.txt "BRGTEST-219" e.txt
File 2 contents as fle(2)
"BRGTEST-244" a.txt "BRGTEST-244" b.txt "BRGTEST-231" c.txt "BRGTEST-231" d.txt "BRGTEST-221" e.txt
I want to get... (22 Replies)
Discussion started by: pottic
22 Replies
LEARN ABOUT SUSE
apply
apply(n) Tcl Built-In Commands apply(n)
__________________________________________________________________________________________________________________________________________________NAME
apply - Apply an anonymous function
SYNOPSIS
apply func ?arg1 arg2 ...?
_________________________________________________________________DESCRIPTION
The command apply applies the function func to the arguments arg1 arg2 ... and returns the result.
The function func is a two element list {args body} or a three element list {args body namespace} (as if the list command had been used).
The first element args specifies the formal arguments to func. The specification of the formal arguments args is shared with the proc com-
mand, and is described in detail in the corresponding manual page.
The contents of body are executed by the Tcl interpreter after the local variables corresponding to the formal arguments are given the val-
ues of the actual parameters arg1 arg2 .... When body is being executed, variable names normally refer to local variables, which are cre-
ated automatically when referenced and deleted when apply returns. One local variable is automatically created for each of the function's
arguments. Global variables can only be accessed by invoking the global command or the upvar command. Namespace variables can only be
accessed by invoking the variable command or the upvar command.
The invocation of apply adds a call frame to Tcl's evaluation stack (the stack of frames accessed via uplevel). The execution of body pro-
ceeds in this call frame, in the namespace given by namespace or in the global namespace if none was specified. If given, namespace is
interpreted relative to the global namespace even if its name does not start with "::".
The semantics of apply can also be described by:
proc apply {fun args} {
set len [llength $fun]
if {($len < 2) || ($len > 3)} {
error "can't interpret "$fun" as anonymous function"
}
lassign $fun argList body ns
set name ::$ns::[getGloballyUniqueName]
set body0 {
rename [lindex [info level 0] 0] {}
}
proc $name $argList ${body0}$body
set code [catch {uplevel 1 $name $args} res opt]
return -options $opt $res
}
EXAMPLES
This shows how to make a simple general command that applies a transformation to each element of a list.
proc map {lambda list} {
set result {}
foreach item $list {
lappend result [apply $lambda $item]
}
return $result
}
map {x {return [string length $x]:$x}} {a bb ccc dddd}
-> 1:a 2:bb 3:ccc 4:dddd
map {x {expr {$x**2 + 3*$x - 2}}} {-4 -3 -2 -1 0 1 2 3 4}
-> 2 -2 -4 -4 -2 2 8 16 26
The apply command is also useful for defining callbacks for use in the trace command:
set vbl "123abc"
trace add variable vbl write {apply {{v1 v2 op} {
upvar 1 $v1 v
puts "updated variable to "$v""
}}}
set vbl 123
set vbl abc
SEE ALSO
proc(n), uplevel(n)
KEYWORDS
argument, procedure, anonymous function
Tcl apply(n)