10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I have a perl script which splits a large file into chunks.The script is given below
use strict;
use warnings;
open (FH, "<monolingual.txt") or die "Could not open source file. $!";
my $i = 0;
while (1) {
my $chunk;
print "process part $i\n";
open(OUT, ">part$i.log") or die "Could... (4 Replies)
Discussion started by: gimley
4 Replies
2. UNIX for Beginners Questions & Answers
Hi Folks -
I'm trying to extract the string between two special characters, the "-" and "." symbols.
The string format is as such:
_PBCS_URL_PRD=https://plan-a503777.pbcs.us6.ocloud.com
_PBCS_URL_TST=https://pln-test-a503777.pbcs.us6.ocloud.comIn the above case, I need to extract "a503777".... (7 Replies)
Discussion started by: SIMMS7400
7 Replies
3. Shell Programming and Scripting
i want to add the code below to the end of every line in file4
im using this awk command to do this
awk '{print $0"txt-to-print-here"}' file4
its not working because i think i need to escape the code
please can someone show the right way
thanks
| sed 's~http*:/https:///~~g' > file1... (3 Replies)
Discussion started by: bob123
3 Replies
4. Shell Programming and Scripting
Hi Gurus,
Escape sequences \n, \t, \b, \t, \033(1m are not working.
I just practiced these escape sequences. It worked first. Later its not working.
Also the command - echo inside the script editor shows as shaded by a color. Before that echo inside the script editor wont show like this.... (4 Replies)
Discussion started by: GaneshAnanth
4 Replies
5. Shell Programming and Scripting
This is a bit off the wall, but I often need to run scripts where there are argument values that contain special characters.
For example,
$ ./process.exe -t M -N -o temp.mol.s -i ../molfiles/N,N\',N\'\'-trimethylbis\(hexamethylene\)triamine.mol && sfile_space_to_tab.sh temp.mol.s temp.s
It... (1 Reply)
Discussion started by: LMHmedchem
1 Replies
6. Shell Programming and Scripting
i am executing script from A server which will execute the script in B server , as below.
ssh A 'ssh B echo 'select * from testing where name ='test''
i am getting the below output.
select * from testing where name=test
but i need the output where clause with quotes , tried with... (3 Replies)
Discussion started by: expert
3 Replies
7. UNIX for Dummies Questions & Answers
Hi.
I have a log file which gets updated by a java process and it uses ASCII STX and ETX characters (i.e CTRL-B and CTRL-C characters) to demarcate each XML message logged.
so the format of the file is something like
STX XML_MESSAGE1
..
..
ETX STX XML_MESSAGE2
..
..
ETX
each XML... (4 Replies)
Discussion started by: gregoryp
4 Replies
8. Shell Programming and Scripting
In a Script I need to push several messages to a function.
My problem here is: I have to print the string v$LOCK on the resulting line which spits out the message. What I want here is not printing the contents of $LOCK I want to escape the shell and printout v$LOCK on the line. But don't know how... (3 Replies)
Discussion started by: sdohn
3 Replies
9. Shell Programming and Scripting
Hi
Could anybody tell me how to count the number of occurances of a character within a LINE.
actually i have a single line with words seperated with '+' chracter e.g.
abc+def+ghj+jkl+asd
i want to separte the words above.
Please provide the necessary logic in the form of a SHELL... (6 Replies)
Discussion started by: skyineyes
6 Replies
10. Shell Programming and Scripting
what can I use ??
In vi, I can use :set list <-- and see end of line $.. or use cat -A but I am wondering if there is command or program that allows me to see all the hidden characters( space, tab and etc)
Please help
thanks. (3 Replies)
Discussion started by: convenientstore
3 Replies
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)