Dear Members,
I need a perl code:
1. Which will open first file with two columns separated by tab:
37 Distribution and seasonal variation of trace metals
85 Seasonal variability of the mixed layer in the central Bay
99 Dynamics of transparent exopolymeric particles (TEP)
103 Bacterial... (0 Replies)
I know how to check if any file has a unix process using a file by looking at 'lsof <fullpath/filename>' command.
I think using lsof is very expensive. Also to make it accurate we need to inlcude fullpath of the file.
Is there another command that can tell if a file has a truely active... (12 Replies)
Help needed...
Can you tell me how to compare the last two couple entries in a file and print their result in new file..:confused:
I have one file
Check1.txt
\abc1 12345
\abc2 12327
\abc1 12345
\abc2 12330
I want to compare the entries in Check1 and write to... (1 Reply)
Hello experts,
It has been just one month since I started with perl. I have the following doubt.
I have two files
File 1 looks like this
GKHGGSS0098 PPP.100.F.LE
GKHYXDF9081 KKK.100.F.LE
GKHSDFT6546 JKL.100.F.LE
GKHGGHJ3123 ABC.100.F.LE
File 2 looks like this... (2 Replies)
Hi,
I have two files with below data::
file1:-
123|aaa|ppp
445|fff|yyy
999|ttt|jjj
555|hhh|hhh
file2:-
445|fff|yyy
555|hhh|hhh
The records present in file1, not present in file 2 should be writtent to the out put file.
output:-
123|aaa|ppp
999|ttt|jjj
Is there any one line... (3 Replies)
I have two files
File1
====
1|2000-00-00|2010-02-02||
2| 00:00:00|2012-02-24||
3|2000-00-00|2011-02-02||
File2
====
2000-00-00
00:00:00
I want the delete the patterns which are found in file 2 from file 1,
Expected output:
File1
==== (5 Replies)
Hi all,
I have one file with IDs
Q8NDM7
P0C1S8
Q8TF30
Q9BRP8
O00258
Q6AWC2
Q9ULE0
Q702N8
A4UGR9
Q13426
Q6P2D8
Q9ULM3
A8MXQ7
I want to compare ID file with another file which has complete information about these IDs and also about other IDs which are not in the above ID file. As... (10 Replies)
Hello all,
I need to write a script which has following requirement:
Need to read the filenames from text file and then search for the above read files in the required directory and if match found backup them in a backup folder.
And also need to compare and verify whether the files in the... (7 Replies)
Hi,
I need to compare a file with its contents matching to that of another file(filename , received date and record count).
Lets say has File A original data
Ex -
1,abc,1234
2,bcd,4567
3,cde,8901
and File B has details of File A
Ex-
FILEA.TXT|06/17|2010|3
(filename)|(received... (18 Replies)
Hi
I have 2 files which are tab delimited.
file1
chr1 5 10 P1 KR4
chr1 10 20 1H LA1 R0 TA1
file2
P1 G6 13.27 0.2425
P1 KR4 18.79 0.3060
P1 DND1 19.44 0.2833
N1 DH1 0.99 1.08
1H R0 0.9 NA
LA1 R0 90 0.9
TA1 KR4 1.8 8.9
TA1 R0 9.7 99I want to check whether first 2 columns in file2 (column... (1 Reply)
Discussion started by: raj_k
1 Replies
LEARN ABOUT FREEBSD
escape
escape(1) Mail Avenger 0.8.3 escape(1)NAME
escape - escape shell special characters in a string
SYNOPSIS
escape string
DESCRIPTION
escape prepends a "" character to all shell special characters in string, making it safe to compose a shell command with the result.
EXAMPLES
The following is a contrived example showing how one can unintentionally end up executing the contents of a string:
$ var='; echo gotcha!'
$ eval echo hi $var
hi
gotcha!
$
Using escape, one can avoid executing the contents of $var:
$ eval echo hi `escape "$var"`
hi ; echo gotcha!
$
A less contrived example is passing arguments to Mail Avenger bodytest commands containing possibly unsafe environment variables. For
example, you might write a hypothetical reject_bcc script to reject mail not explicitly addressed to the recipient:
#!/bin/sh
formail -x to -x cc -x resent-to -x resent-cc
| fgrep "$1" > /dev/null
&& exit 0
echo "<$1>.. address does not accept blind carbon copies"
exit 100
To invoke this script, passing it the recipient address as an argument, you would need to put the following in your Mail Avenger rcpt
script:
bodytest reject_bcc `escape "$RECIPIENT"`
SEE ALSO avenger(1),
The Mail Avenger home page: <http://www.mailavenger.org/>.
BUGS
escape is designed for the Bourne shell, which is what Mail Avenger scripts use. escape might or might not work with other shells.
AUTHOR
David Mazieres
Mail Avenger 0.8.3 2012-04-05 escape(1)