set LASInputFile = `ls *.[Ll][Aa][Ss] | head -1`
set i=`cat $LASInputFile | wc -l`
set j=1
while ($j <= $i)
set line=`cat $LASInputFile | head -$j | tail -1`
@ j = $j + 1
# do your thing with $line here.
# for this example, we'll just echo
# it back the screen
echo $line
end
taskes one or more .l files and compiles them
#!/usr/bin/csh
#while loop to carry on asking user to enter the files
while $number!=0
echo "enter file name"
#check to see if file ends with .l
#if file ends with .l compile lexx.yy.c file for each file
this is how i think it needs... (1 Reply)
Hi
I want to read one row record from a text file.
For eg: I have Sample.txt file with one row of record like
123456768
I want to get the above value from the file and assign it to a variable in my script. Please guide me how to proceed.
Thanks,
Soll (2 Replies)
The binary file is
ELF-64 executable object file - IA64.
How i know that the source is
Is there any comamnd in unix i can read these kind of files or use a thirty party software?
Thanks for your help (8 Replies)
I have a requirement where i have to read from a .sh file a text lying bet characters like 'SELECT' & ';'...Please help me out in this. I am new to shell scripting. (2 Replies)
Hello Team,
I am writing a script that reads a text (say 1.txt - 2 s2 a+bb means Number State Label) file having data as:
2 s2 a+bb
3 s3 a+bb
4 s4 a+bb
And there is another text file (say 2.txt) that has sample data as;
~x "a+bb"
<BEGIN>
<TOTAL> 3
<STATE> 1
~y "S_2"
<STATE> 2
~y... (8 Replies)
Hello,
I have a case where I need to process an environment variable text value in CShell to calculate the product of 2 numbers stated in the variable string having the format "<first_number>Letter x<second_number>".
Ex: $VAR = "24x20"
I need to set $VAR_PRODUCT = "Product of 20 and 24"... (3 Replies)
I have list of files in a directory 'dir'. Each file is of type HTML. I need to read each file and get the string which starts with 'http' and write them in a new text file. How can i do this shell scripting?
file1.html
<head>
<url>http://www.google.com</url>
</head>
file2.html
<head>... (6 Replies)
I dont even have a sample script cause I dont know where to start from. My data lookes like this
> sat#16 #data: 15 site:UNZA baseline: 205.9151
0.008 -165.2465 35.8109 40.6685 21.9148 121.1446 26.4629 -18.4976 33.8722
0.017 -165.2243 48.2201 40.6908 ... (8 Replies)
Hi guys,
I have a text file named file1.txt that is formatted like this:
001 , ID , 20000
002 , Name , Brandon
003 , Phone_Number , 616-234-1999
004 , SSNumber , 234-23-234
005 , Model , Toyota
007 , Engine ,V8
008 , GPS , OFF
and I have file2.txt formatted like this:
... (2 Replies)
I have input data looks like this which is a part of a csv file
7,1265,76548,"0102:04"
8,1266,76545,"0112:04"
I need to make the output data should look like this and the output data will be part of text file:
7|1265000 |7654899 |A|
8|12660000 |76545999 |B|
The logic behind the... (6 Replies)
Discussion started by: RJG
6 Replies
LEARN ABOUT BSD
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)