Hi guys,
How to add a line before a specific line (identified with the starting work ex: xxx) of a file and write it back to the same file?
Thanks (12 Replies)
Hi,
I am a relative new bee in scripting. I need to develop a script such that the code would iterate through each file in a source directory and append every line of the file with '|' and the corresponding file filename.
eg
INPUT file IF927_1.dat -
H|abc... (4 Replies)
Hi,
I have one file a.txt ,the contents of the file is
A B C
D E F
and I have another file b.txt, the contents of the file is
1 2 3
4 5 6
now when I am using this command
cat a.txt b.txt > c.txtI am getting the output as
A B C
D E F
1 2 3
4 5 6
but i need the output... (2 Replies)
Hi,
I am new to Sed /awk commands. using that i want to add new empty line after every line in a file by leaving first three lines. So, can any one help me out how to achieve this.
Example:
---------
Input Filename: file1.txt
Input Data:
--------Report--------
Date:20-10-03... (4 Replies)
I have a tab delimited text file,
id name distance
1 3325167 0.334561754018
2 3290488 0.389444269458
3 3288794 0.392312701782
4 3347602 0.392532202097
5 3295355 0.394394169485
I need to add a line after the header line. The first and third field of... (3 Replies)
Hello Everyone,
I need a help from experts of this community regarding one of the issue that I am facing with shell scripting.
My requirement is to append char's at the end of each line of a file. The char that will be appended is variable and will be passed through command line.
The... (20 Replies)
Hi everyone,
currently I writing a script for comparing 2 variable in 2 line then output the line with equal value to new file. However, the new file only contain last line only, the earlier line was delete. I do google my problem but still not find the way out. Sorry for my English.
Thank you... (10 Replies)
I have a shell script that looks something like the following:
mysql -uroot db1 < db1.sql
mysql -uroot db2 < db2.sql
mysql -uroot db3 < db3.sql
mysql -uroot db4 < db4.sql
....
different db names in more than 160 lines.
I want to run this script with nohup and have a status later.
So,... (6 Replies)
Discussion started by: MKH
6 Replies
LEARN ABOUT ULTRIX
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)