Awk: Remove comma at the end of the string - Page 2

cfajohnson · #1 (**permalink**) 3 Weeks Ago

Quote:

Originally Posted by Reddy482

i had String like

UID: ABC345QWE678GFK345SA90, LENGTH 32

when I used awk ' FS[" "], {print $1}' prints

ABC345QWE678GFK345SA90,

how can i getrid of that coma at the end of the string.

Why would you use awk to operate on a string? The shell can manipulate strings without using an external command.
Code:
var=ABC345QWE678GFK345SA90,
newvar=${var%,}
printf "%s\n" "$newvar"

Scrutinizer · #2 (**permalink**) 3 Weeks Ago

Agreed but the OP was using awk anyway to transform

Code:

UID:  ABC345QWE678GFK345SA90, LENGTH 32

into

Code:

ABC345QWE678GFK345SA90,

So you would need a bit more than that to eradicate awk, like:

Code:

ts="UID:               ABC345QWE678GFK345SA90, LENGTH 32"
ts=${ts#*:}
echo "${ts%,*}"

danmero · #3 (**permalink**) 3 Weeks Ago

Quote:

Originally Posted by Scrutinizer

Code:

ts="UID:               ABC345QWE678GFK345SA90, LENGTH 32"
ts=${ts#*:}
echo "${ts%,*}"

We can change the expansion order:

Code:

ts="UID:               ABC345QWE678GFK345SA90, LENGTH 32"
ts="${ts%,*}"
echo ${ts#*:}

or using awk

Code:

echo "UID:  ABC345QWE678GFK345SA90, LENGTH 32"|awk '{sub(",","");print $2}'

or sed

Code:

echo "UID:  ABC345QWE678GFK345SA90, LENGTH 32" | sed 's/.* \(.*\),.*/\1/'

Reddy482 · #4 (**permalink**) 3 Weeks Ago

Thanks for you replies.

I had an executable file name " uid.out" that generates following ouput when i call it from the shell script.
"Home" is the string that i passed as input to the string.

Using Prod Key
Trying to Encrypt: home
UID: 8C42A3DA2A9BFB9D8E89E4FA9C9FE161, length: 32

Now i want to extract the 8C42A3DA2A9BFB9D8E89E4FA9C9FE161 into variable.
what i did was

uid.out "Home" |grep UID >> temp.txt
=$( awk '{FS=" "} {print $2}' temp.txt)
echo "${Ecode}
produces the ouptut 8C42A3DA2A9BFB9D8E89E4FA9C9FE161,
in which I am not able to seperate Coma(,) at the end string.

What am i doing wrong?

thanks in advance.

Scrutinizer · #5 (**permalink**) 3 Weeks Ago

Reddy, have you tried any of the solutions? Leaving optimizations of your code aside, there are close to a gazillion solutions to your problem in this thread. If you are having trouble choosing then just pick one.

durden_tyler · #6 (**permalink**) 3 Weeks Ago

Quote:

Originally Posted by Reddy482

...
What am i doing wrong?
...

You are not paying close attention to the scripts posted here.

Quote:

Originally Posted by Reddy482

...
I had an executable file name " uid.out" that generates following ouput when i call it from the shell script.
"Home" is the string that i passed as input to the string.

Using Prod Key
Trying to Encrypt: home
UID: 8C42A3DA2A9BFB9D8E89E4FA9C9FE161, length: 32

Now i want to extract the 8C42A3DA2A9BFB9D8E89E4FA9C9FE161 into variable.
what i did was

uid.out "Home" |grep UID >> temp.txt
=$( awk '{FS=" "} {print $2}' temp.txt)
echo "${Ecode}
produces the ouptut 8C42A3DA2A9BFB9D8E89E4FA9C9FE161,
in which I am not able to seperate Coma(,) at the end string.
...

Try one of these:

Code:

uid.out "Home" | awk -F '[ ,]' '/UID/ {print $2}'

or

Code:

uid.out "Home" | awk -F "[ ,]" '/UID/ {print $2}'

or

Code:

uid.out "Home" | awk 'BEGIN{FS="[ ,]"} /UID/ {print $2}'

or

Code:

uid.out "Home" | perl -lne '/^UID: (\w+),/ && print $1'

tyler_durden

cfajohnson · #7 (**permalink**) 3 Weeks Ago

Quote:

Originally Posted by Reddy482

I had an executable file name " uid.out" that generates following ouput when i call it from the shell script.
"Home" is the string that i passed as input to the string.

Using Prod Key
Trying to Encrypt: home
UID: 8C42A3DA2A9BFB9D8E89E4FA9C9FE161, length: 32

Now i want to extract the 8C42A3DA2A9BFB9D8E89E4FA9C9FE161 into variable.
what i did was

uid.out "Home" |grep UID >> temp.txt
=$( awk '{FS=" "} {print $2}' temp.txt)
echo "${Ecode}
produces the ouptut 8C42A3DA2A9BFB9D8E89E4FA9C9FE161,
in which I am not able to seperate Coma(,) at the end string.

Code:

uid.out |
{
 read;read             ## discard first two lines
 IFS=' ,' read a b c   ## what you want is stored in $b
 printf "%s\n" "$b"
}

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Bits Awarded / Charged to cfajohnson for this Post
Date	User	Comment	Amount
3 Weeks Ago	Reddy482	N/A	516

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