I have a total of ten file to open in the Perl script and i am using a for loop to open each file and capture some strings inside each file.
Unfortunately, i encounter the below syntax error.
I think there should be something wrong with this term reports_${counting}_${_[0]}.txt but i do not know how to modify the code to suit this.
Can any expert help me with this ?
The file names which i wish to open are : reports_1_MAIN
reports_2_MAIN
reports_3_MAIN
...
...
reports_10_MAIN
I have gone to /usr/bin/ and click on perl but notting happens.also notting happens when i click on c/c++ or any other program
whats wrong ? (2 Replies)
Hi All,
I need some expert help in performing the following in Perl.
I have a code below but it doesn;t seem to work. Can any expert give me some advice?
Below are the requirements
1) Open numerous files assigned to an array @FILES. Note that the files are always named with the term... (7 Replies)
Hi all,
I have mistkanely gzipped twice an entire folder and sub folders, and also renamed the files during that process.
I am trying to undo this, and I need help to create the batch to work on it.
All folders are under my images directory, I have a output.txt file that holds all the... (1 Reply)
Hi, guys, I'm not a high-end programmer, but I've been trying to write a script to remove all of the b.rtbn2.cn (and b.adserv.cn and any future variation) injected script tags on the server. (Still working on security fixes to prevent it in the future, just need to clean up now.)
My approach is... (1 Reply)
Hi,
I have thousands of files in a directory that have the following 2 formats:
289620178.aln
289620179.aln
289620180.aln
289620183.aln
289620184.aln
289620185.aln
289620186.aln
289620187.aln
289620188.aln
289620189.aln
289620190.aln
289620192.aln....
and:
alnCDS_1.fasta (1 Reply)
howdy.
can you place mplayer windows on the screen anywhere?
i would like to open four movie files from command line and make them show up on screen like this
----- -----
| 1 | | 2 |
----- -----
| 3 | | 4 |
----- -----
hopefully my ascii representation makes some sense.
and i would... (1 Reply)
Good morning guys!!
Im still practicing with Perl and now Im trying to open a file, and copy its contents to another file. Them I want to remeove the information out of the orginal file after it is copied over.
The flow should be messages-->messages1-->messages2.
Kind of like a log... (1 Reply)
I am using below scripts to copy all the files from multiple folders. By executing individually command i am able to copy all the files but using scripts only getting first file. System is ignoring the second CD and mget command.
HOST=server.com
USER=loginid
PASSWD="abc"
echo "open $HOST... (6 Replies)
Hello all,
I am trying to make a script that will apply a substitution to any number of files given on the command line.
Example would be
~/Unix/script/subst car boat myFile1.txt myFile2.txt myFile3.txt
This is the code I have so far but it does not function as needed.
PAT=$1
shift... (10 Replies)
Hello,
I wrote a simple script, that basically wait for a *.dat-file in a certain folder, which is always a zipped file and extracts it.
It worked before and i changed nothing in the script, but since last week i have the problem, that it doesnt extract files containing a space. How do i make... (4 Replies)
Discussion started by: blend_in
4 Replies
LEARN ABOUT MOJAVE
env5.18
Env(3pm) Perl Programmers Reference Guide Env(3pm)NAME
Env - perl module that imports environment variables as scalars or arrays
SYNOPSIS
use Env;
use Env qw(PATH HOME TERM);
use Env qw($SHELL @LD_LIBRARY_PATH);
DESCRIPTION
Perl maintains environment variables in a special hash named %ENV. For when this access method is inconvenient, the Perl module "Env"
allows environment variables to be treated as scalar or array variables.
The "Env::import()" function ties environment variables with suitable names to global Perl variables with the same names. By default it
ties all existing environment variables ("keys %ENV") to scalars. If the "import" function receives arguments, it takes them to be a list
of variables to tie; it's okay if they don't yet exist. The scalar type prefix '$' is inferred for any element of this list not prefixed by
'$' or '@'. Arrays are implemented in terms of "split" and "join", using $Config::Config{path_sep} as the delimiter.
After an environment variable is tied, merely use it like a normal variable. You may access its value
@path = split(/:/, $PATH);
print join("
", @LD_LIBRARY_PATH), "
";
or modify it
$PATH .= ":.";
push @LD_LIBRARY_PATH, $dir;
however you'd like. Bear in mind, however, that each access to a tied array variable requires splitting the environment variable's string
anew.
The code:
use Env qw(@PATH);
push @PATH, '.';
is equivalent to:
use Env qw(PATH);
$PATH .= ":.";
except that if $ENV{PATH} started out empty, the second approach leaves it with the (odd) value "":."", but the first approach leaves it
with ""."".
To remove a tied environment variable from the environment, assign it the undefined value
undef $PATH;
undef @LD_LIBRARY_PATH;
LIMITATIONS
On VMS systems, arrays tied to environment variables are read-only. Attempting to change anything will cause a warning.
AUTHOR
Chip Salzenberg <chip@fin.uucp> and Gregor N. Purdy <gregor@focusresearch.com>
perl v5.18.2 2013-11-04 Env(3pm)