I'm not very familiar with the ssh command. When I tried to set a variable and then echo its value on a remote machine via ssh, I found a problem. For example,
$ ITSME=itsme
$ ssh xxx.xxxx.xxx.xxx "ITSME=itsyou; echo $ITSME"
itsme
$ ssh xxx.xxxx.xxx.xxx 'ITSME=itsyou; echo $ITSME'
itsyou
$... (3 Replies)
Hi.
please help me to write the following query in a shell script.
the Query is :select no,salary from emp_info where name='$var_name'
the following is my code.
#! /bin/sh
var_name=$1
sqlplus -s user/pwd@DB << EOF
select no,salary from emp_info where name="'$var_name'";... (4 Replies)
I have a file like below. How can I add a new value after moss separated by a comma. This adding script should work in such a way that each time i pass a value it should be added one after the other separated by commas.
hru:122:
hello:123:john,philip,mary,kp,moss
hi:124:
bye:125:
Can... (7 Replies)
Unix superusers,
I am new to unix but would like to learn more about grep. I am very familiar with regular expressions as i have used them for searching text files in windows based text editors. Since I am not very familiar with Unix, I dont understand when one should use GREP with the... (2 Replies)
Hello. I'm trying to write a bash script that uses GNU screen and have hit a brick wall that has cost me many hours... (I'm sure it has something to do with quoting/globbing, which is why I post it here)
I can make a script that does the following just fine:
test.sh:
#!/bin/bash
# make... (2 Replies)
Hi,
Trying to change the prompt. I have the following code.
export PS1='
<${USER}@`hostname -s`>$ '
The hostname is not displayed
<abc@`hostname -s`>$ uname -a
AIX xyz 1 6 00F736154C00
<adcwl4h@`hostname -s`>$
If I use double quotes, then the hostname is printed properly but... (3 Replies)
Hi Experts,
I am beginner to the shell scripting, My requirement is to append double quotes for each column in a file if double quotes does not exist.
Example:
"abc"|123|"gh-ch"|23.067
Use code tags, thanks. (10 Replies)
Hi Experts,
Please support
I have below data in file in comma seperated, but 4th column is containing comma in between numbers, bcz of which when i tried to parse the file the column 6th value(5049641141) is being removed from the file and value(222.82) in column 5 becoming value of column6.
... (3 Replies)
Hi,
I have below requirement.
Apple
Orange
Banana
Required O/p in bash
'Apple,Orange,Banana'
Can you please help.
Please wrap your samples, codes in CODE TAGS as per forum rules. (3 Replies)
Discussion started by: Rtk
3 Replies
LEARN ABOUT PHP
escapeshellarg
ESCAPESHELLARG(3) 1 ESCAPESHELLARG(3)escapeshellarg - Escape a string to be used as a shell argumentSYNOPSIS
string escapeshellarg (string $arg)
DESCRIPTION escapeshellarg(3) adds single quotes around a string and quotes/escapes any existing single quotes allowing you to pass a string directly
to a shell function and having it be treated as a single safe argument. This function should be used to escape individual arguments to
shell functions coming from user input. The shell functions include exec(3), system(3) and the backtick operator.
On Windows, escapeshellarg(3) instead removes percent signs, replaces double quotes with spaces and adds double quotes around the string.
PARAMETERS
o $arg
- The argument that will be escaped.
RETURN VALUES
The escaped string.
EXAMPLES
Example #1
escapeshellarg(3) example
<?php
system('ls '.escapeshellarg($dir));
?>
SEE ALSO escapeshellcmd(3), exec(3), popen(3), system(3), backtick operator.
PHP Documentation Group ESCAPESHELLARG(3)