The value is saved with newlines and everything. echoing it back without quoting will flatten any whitespace to single spaces. (This is a feature of the shell and its quoting mechanisms, not of echo.) To make sure you see the real actual value, examine the variable with set.
This is with bash; output will probably be slightly different with other shells.
Notice that the final trailing newline is chomped off by the shell.
I am new to unix. i need to know how to use grep to grep and expression from a file. and pass the result as a 0 for found and 1 for not found. I can only go up to grep 'Checking Subscription Status' ranos.log. Please help. Thank you. (2 Replies)
i have this SSH command which runs perfectly on command prompt in sunOS
ssh -o Port=${portno} ${uname}@${server} find ${dir_path} -name '***'
output : /usr/local/home/***
My problem is when i run same command in my script
#!/usr/bin/ksh
res=`ssh -o Port=${portno} ${uname}@${server}... (1 Reply)
For whatever reason I cant seem to fix my syntax to do the following. I want to run a grep and count how many instances come up and store that number in a variable but I keep erroring out. Here's my code in bash:
number=grep blah file.txt | wc -l (1 Reply)
Trying to create a command line script to look for all files matching a pattern, grep for a specific value in each file, and write out the filename long list. It's possible the filename won't containe the value.
{
echo “Running....”
for fname in 811_Intermediate_File_*
do
grep -l... (3 Replies)
Hi!
i'm trying to parse textfiles against a pattern and storing the result in a variable.
The strings i want to get are embraced by and can occur several times in one line, so e.g.
some text anything else endwhat i have so far:
#!/bin/bash
for f in $*
do
exec 3<&0
exec 0<$f
... (2 Replies)
Hi,
I was working on the password policy settings of Solaris where i wanted to grep the results of MINDIFF and comparing it to if else to make it into a auditing script.
I stored the grep into VAR1 and compare it if MINDIFF=3 but it doesnt work.
Can anyone help me with it?
!#/bin/bash
... (2 Replies)
Hello.
I want to get all modules which are loaded and which name are exactly 2 characters long and not more than 2 characters and begin with "nv"
lsmod | (e)grep '^nv????????????
I want to get all modules which are loaded and which name begin with "nv" and are 2 to 7 characters long
... (1 Reply)
I'm making an sftp-connection to a remote server. I want the result of an ls-command in a local file and the result of ls on another folder in another local file. Because everything has to go as fast a possible I wan't to do everyting in one connection.
The command I use is : psftp -v -batch -b... (4 Replies)
Hi,
I am running following command in a bash script for testing IO and use grep to get throughput number, but it did not work, it displayed everything:
dd if=/dev/zero of=/dev/null bs=1G count=1 oflag=dsync | grep bytes | awk '{print $7}'
1+0 records in
1+0 records out
536870912 bytes... (2 Replies)
FTP is connecting to the server but i am getting an error -
Enter if the env is dev or test or prod:
test
Please enter the id no :
xxxxxxx
Connected to xxxx
220 (vsFTPd 2.2.2)
331 Please specify the password.
230 Login successful.
?Invalid command
?Invalid command
?Invalid command... (3 Replies)
Discussion started by: chandraprakash
3 Replies
LEARN ABOUT MOJAVE
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)