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(g)awk

awk -F. 'length($2)==6{t++}END{print t}' file

no need. hint: ?[0-9]*

maybe try this?

freq[i]++


awk automatically use delimiter of spaces by default.

sed '1i yourline' file

bash

while read -r line
do
echo ${line:(-4)}
done < "file"

sed -i '1i add here' file*bat

sed '$d' file | sed '$d'

if you have gawk

awk --non-decimal-data '{print ("0x"$1)+0 " " ("0x"$2)+0}' file

output:

# awk --non-decimal-data '{print ("0x"$1)+0 " " ("0x"$2)+0}' file
20000 1141
10000 271
30000 27042...

The best way to capture user commands, is to turn on auditing.
in Solaris, you can turn on BSM. In red hat , there should be similar mechanism (auditd). pls check your red hat documentation....

string="abc@hotmail.com;xyz@gmail.com;uvw@yahoo.com"
var=$(echo $string | awk -F";" '{print $1,$2,$3}')
set -- $var
echo $1
echo $2
echo $3

output:

# ./test.sh
abc@hotmail.com...

grep "active=true" file | cut -d"." -f1

change="User_Alias SOME_ADMINS = user1"
awk -v c="$change" '{print}
/User alias specification/{print c}
' "file" > temp
mv temp file

why are you doing his homework in full ?

awk -vvar=$VAR '{print var;print $0}' file

awk '{for(i=1;i<=8;i++){$i=""};}1' file

you should Franklin's solution.

nawk '{sub(".*"$8 FS,"");gsub(" ","_")}1' file

won't work if there are strings like "nap", "NAG" etc.

awk 'NR!~/^(1[0-3]|4[5-7])$/' file

Have you checked CPAN? Else you can program it in Perl, simply for opening another file for appending and writing to this file in addition to printing to the screen

windows ftp client doesn't cut it. if you want, go download an ftp client for windows that support specifying a port number. Or, you can use a programming language such as Perl or Python with their...