The following code for basic. It will work for only one file. If you need to implement for all files.
Code:
use strict;
use warnings;
open FH,"<file" or die "Can't Open $!";
my @array;
while(<FH>)
{
push(@array,$_);
}
my $var=$#array+1;
close FH;
open FH,">file" or die "Can't Open $!";
print FH "$var\n";
print FH "@array";
Hi,
Am trying to write a shell script which will append a header and a footer to an existing file. Header will contain details like the current date while the footer will contain the no: of records listed in the file.
I know we can use the CAT command, but i have no clue abt the syntax to... (4 Replies)
Hi, I am a newb as far as shell scripting and SED goes so bear with me on this one.
I want to basically append to each line in a file a delimiter character and the line's line number e.g
Change the file from :-
aaaaaa
bbbbbb
cccccc
to:-
aaaaaa;1
bbbbbb;2
cccccc;3
I have worked... (4 Replies)
It appears that this has been asked and answered in similar fashions previously, but I am still unsure how to approach this.
I have two files containing user information:
fileA
ttim:/home/ttim:Tiny Tim:632
ppinto:/home/ppinto:Pam Pinto:633
fileB
ttim:xkfgjkd*&#^jhdfh... (3 Replies)
A friend contacted me recently with an interesting question. We got something worked out, but I'm curious what answers you all can come up with.
Given a shell script (in bash) that processes a bunch of data and appends it to a file, how would you append the date, time, and a filename to the... (6 Replies)
Hi,
I have the following file,
ABC.txt:
ABC=123
DEF=234
FGH=345
Based on my validation and conditional processing it is observed that i need to comment or append # before DEF=234
so the same file ABC.txt should look as follows
ABC=123
#DEF=234
FGH=345
Sorry if its a... (6 Replies)
Hi,
My requirement is to append a date in format DDMMYYYYHHMISS at the end of first line of file which is HEADER. I am trying command
sed -i '1s/.*/&<date_format>/' <file_name>
Where <date_format>=`date +%m%d%Y%H%M%S`
I am somehow misisng the right quotes ti get this added in above... (2 Replies)
I'm working on a personal project, a multiplication quiz script for my kids. In it, the user's performance will be recorded and written to a file. After they've played it a little while, it will start to focus more on the ones that give them the most trouble-- that take a long time to answer or... (4 Replies)
Hi All,
I thinking on how to accelerate the speed on calculate the dat file against the number of records CTRL file.
There are about 300 to 400 folder directories that contains both DAT and CTL files.
DAT contain all the flat files records
CTL is the reference check file for the... (3 Replies)
First month learning about the Linux terminal and it has been a challenge yet fun so far. We're learning by using a gameshell. I'm trying to display a certain line ( only allowed 1 command ) from a file only using the head or tail. I'm pretty about this answer:
head -23 history.txt | tail -1... (1 Reply)
Discussion started by: forzatekk
1 Replies
LEARN ABOUT MINIX
make
MAKE(1) General Commands Manual MAKE(1)NAME
make - a program for maintaining large programs
SYNOPSIS
make [-f file] [-iknpqrst] [option] ... [target]
OPTIONS -f Use file as the makefile
-i Ignore status returned by commands
-k On error, skip to next command
-n Report, but do not execute
-p Print macros and targets
-q Question up-to-dateness of target
-r Rule inhibit; do not use default rules
-s Silent mode
-t Touch files instead of making them
EXAMPLES
make kernel # Make kernel up to date
make -n -f mfile # Tell what needs to be done
DESCRIPTION
Make is a program that is normally used for developing large programs consisting of multiple files. It keeps track of which object files
depend on which source and header files. When called, it does the minimum amount of recompilation to bring the target file up to date.
The file dependencies are expected in makefile or Makefile , unless another file is specified with -f. Make has some default rules built
in, for example, it knows how to make .s files from .c files. Here is a sample makefile .
d=/user/ast # d is a macro
program: head.s tail.s# program depends on these
cc -o program head.s tail.s# tells how to make program
echo Program done. # announce completion
head.s: $d/def.h head.c # head.s depends on these
tail.s: $d/var.h tail.c # tail.s depends on these
A complete description of make would require too much space here. Many books on UNIX discuss make . Study the numerous Makefiles in the
MINIX source tree for examples.
SEE ALSO cc(1).
MAKE(1)