I was trying to extract value of g1 and p1 only inside the tags where t1 is "Reading C (bytes)" and comparing them to make sure p1 is always less than g1. Here is the Json file I'm using -
File:-
I was trying using simple shell scripting to extract the line number of starting and ending t1 and computing the difference. Could you please assist awk to simply extracting the values and comparing g1 and p1 regardless of b number of tags using t1 = Reading C (bytes)
I am trying to compare 2 float values using if
the foll code does not work
a=1.4
b=1.6
if test $a -gt $b
then
echo "$a is max"
else
echo "$b is max"
fi
does -gt work for floating point numbers, if not how do go about for my requirement? can i use bc ? pls help
thanks in advance... (2 Replies)
Im trying to create a utility that can do unit conversions using a seperate formula file(one which i can add conversions to at a later date). however i'm stuck when it comes to pulling the formulas out of the formula file for use in the script.
heres a rundown of what the script does.
The... (4 Replies)
Hello all
while writing a small script , i got stuck with this simple thing.Hope you guyz can help.
Iam trying to read password
echo"enter password"
read $pwd
now i have to check this
echo"enter password to proceed"
read $pwd
now i have to check both the values of the... (2 Replies)
i have two file and i am comparing both..
in cmp1 ,the content is :
the nu of file is : <some integer value>
in cmp2 ,the content is :
the nu of file is :
so want a script which will take value (2) when cmp1 is compared with cmp2..
i mean cmp cmp1 cmp2 the the output will be
he nu of... (1 Reply)
Hi to all,
I have the following text within inputfile
data1,value1,value2
data1,value3,value2
data1,value5,value6
data2,value1,value2
data2,value3,value4
data3,value1,value2
data3,value3,value4
data4,value1,value2
data4,value3,value4
data4,value5,value6
I would like to... (4 Replies)
Hi,
I am stuck with extracting values by combining 2 dynamically extracted values.
The code goes like this
#!/usr/bin/ksh
ID1="abcd"
i=1 #this is a dynamic value and keeps on changing
b="ID" #this is static
now i want the value of ID1 variable.
like echo $b$i
But echo... (1 Reply)
Hi,
I need to get the value of 'uid' from a line in file f1. For example, in the line below, I need to get the value '150', from the 'anonuid=150' key, and I need to verify that this is a valid uid by checking it against /etc/passwd (i.e) I want to compare this uid, 150 (or more if there are any... (2 Replies)
I have 2 text files say file1.txt and file2.txt . Some of the sample records for file1.txt were shown below:
XXXXX12345XXXXXXX12 3456789YYYYY
XXXXXXXXXX12345XX123457485YYYYY
XX12345XXXXXXXXXX123454658YYYYY
for file2.txt, some of the sample records were shown below:
... (5 Replies)
Hi
Am trying to compare the values of two files..
One is a big file that has many values and the other is a small file..
The big file has all values present in small file..
# cat SmallFile
4456602 22347881
7471282 15859891
8257690 21954701
7078068 18219229
2883826 6094959
100000
... (3 Replies)
Hi,
I have two files with values in both.
File1:
cat 2 3
dog 4 5
elephant 6 7
camel 2 3
File2:
----+--gkf;ajf=
---+----
+----- cat -------=----+ 3 | 4 ----- dog ------++-- 5 | 9 ----++-- elephant |
5 | 7
---++ camel ------ ++++_---- || 8 | 9
I want the final file as:
cat 4... (1 Reply)
Discussion started by: npatwardhan
1 Replies
LEARN ABOUT CENTOS
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)