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Shell Programming and Scripting

generation of control file

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Top Forums Shell Programming and Scripting generation of control file
# 1  
Old 02-15-2012
generation of control file
Hi,
I wanted to create a control file with data in it.
Also wanted to append more points like
1)Row count, then print the first field
2)first line of the file
3)last line of the file
I started with this:-
Code:
ls -ltr *.*| awk ' { print $9 "|" $7 $6 $8 "|" $5 } '
sed -n '1p';
sed -n '$p';

Moderator's Comments:
Mod Comment How to use code tags
Last edited by Franklin52; 02-15-2012 at 04:21 AM.. Reason: Please use code tags for code and data samples, thank you
# 2  
Old 02-15-2012
Doing it one shot (file is red once)
Code:
$ cat f1
11 12 13 14 15
21 22 23 24 25
31 32 33 34 35
41 42 43 44 45
51 52 53 54 55
61 62 63 64 65
71 72 73 74 75
81 82 83 84 85
91 92 93 94 95
$ awk 'NR==1{f=$1;l=$0}{c=$0}END{print "Line number:" NR,"First field:"f RS "First line:"l RS "Last Line:"c}' f1
Line number:9 First field:11
First line:11 12 13 14 15
Last Line:91 92 93 94 95
$

This User Gave Thanks to ctsgnb For This Post:
alokbaba
# 3  
Old 02-15-2012
Code:
sed -n '$s/.*/Line Number-> /p;$=' file1 |sed 'N;s/\n//';sed -n -e '1s/\([^ ]*\).*/First Field-> \1/p' file1;sed -ne '1s/.*/FIRSTLINE-> &/p' -e '$s/.*/LASTLINE-> &/p' file1
Line Number-> 9
First Field-> 11
FIRSTLINE-> 11 12 13 14 15
LASTLINE-> 91 92 93 94 95

regards
ygemici
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