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Shell Programming and Scripting

how to read in shell

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# 1  
Old 06-30-2007
how to read in shell
how to read 3rd entry of 6th line from the bottom in /etc/passwd file using shell script
# 2  
Old 06-30-2007
Quote:
Originally Posted by useless79
how to read 3rd entry of 6th line from the bottom in /etc/passwd file using shell script
Code:
awk -F":" ' NR == 6 { print $3 } ' /etc/passwd

# 3  
Old 06-30-2007
Quote:
Originally Posted by useless79
how to read 3rd entry of 6th line from the bottom in /etc/passwd file using shell script
If I understand correctly and by "entry" you mean column:

Code:
awk '{x[NR]=$3}END{print x[NR-5]}' FS=":" /etc/passwd

# 4  
Old 06-30-2007
MySQL "awk"
tail -6 /etc/passwd | head -1 | awk -F":" '{print $3}'
# 5  
Old 06-30-2007
Quote:
Originally Posted by anchal_khare
tail -6 /etc/passwd | head -1 | awk -F":" '{print $3}'
Or (zsh/bash/ksh93):

Code:
< <(tail -6 /etc/passwd) IFS=: read a b c d;echo "$c"

# 6  
Old 06-30-2007
Another way of doing
Code:
tail -6 /etc/passwd | head -1 | cut -d: -f 3

Cheers,
Ozgur
# 7  
Old 07-01-2007
Code:
awk '{ line[NR]=$0} 
     END { 
	         for (i=NR-5; i<=NR; i++) { 
			    n=split(line[i],arr,":")
				print arr[3]
			 } 
		  }'  "/etc/passwd"
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