par='one" -e "two'
I want to expand the variable (a little bit more complex) in a grep construction like this (obviously not working):
ls |grep -e "${par}"
i tried different methods with eval with no result
Is there any way to archive this?
Thx in advance mates! (3 Replies)
Okay, well this is more or less my first attempt at writing a shell script.
Anyways, here's my code:
cd ${PATH}
if
then
rm ${FILE}
./anotherScript
else
exit 1
fi
exit 1
Anyways, it's a pretty simple script that is supposed to search for the... (4 Replies)
Hello, i have a script which checks if the user entered 8 numeric characters in the form of YYYYMMDD (birth date). If the user entered any non numeric characters, an error will be displayed:
# Check to see if the 8 characters are all numbers
# If not show error essage
# And prompt user... (4 Replies)
Hello ...again.
I am stuck on this part, I have a loop with processes an operations file.
and calls different functions depending on what is in loop, which processes a database file...
#so far my add function works as intended
add()
{
...blah blah;
}
# delete is kinda working... (13 Replies)
hi i need help with below code.
if ]
then
log "Exiting the script as ID= NULL"
log "Please run script first."
fi
i am calling grep inside this but its not running any ideas why ??
input file is like this --
Msg 102, Level 20, State 1:
Server... (4 Replies)
Hello All,
I have been reading posts on here for a while, but this is my first post. I have a document in which many sentences appear, and I am piping it through an exterior script which will tag each word in the document with its part of speech (not part of my script, just background). The... (3 Replies)
Hi all. I am trying to compare and filter two files. I have a bigfile.txt of names and ids and a smallfile.txt of ids only. What I am trying to do is use a while read loop to read the ids in the bigfile and then echo the name and id only if the id exists in the small file. Basically, I'm trying to... (5 Replies)
As an exercise, I'm trying to re-write this code without the compound square brackets, using grep and test. Need to know what to do about the "equal-tilde".
#!/bin/bash
# test-integer2: evaluate the value of an integer.
INT=-5
if +$ ]]; then
if ; then
echo "INT is zero."
else
if ; then... (17 Replies)
read a
if test grep EOF $a
then echo yes file
else
echo no
fi (1 Reply)
Discussion started by: iamsumibisht
1 Replies
LEARN ABOUT DEBIAN
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)