Search Results

Hey,

after I check the man page for mail and mailx, I did not find the -r option. But, I have to change the email sender, how can I do it?

Send Mode
mailx [-s subject]...

thanks a lot! It is working on this temp file, and I will test on the official file again on Monday. Thank you so much!

Actually, the double quote, comma are allowed in the comments. Need to think...

I have a file, first 5 columns are very normal, like "1107",106027,71400,"Y","BIOLOGY",,
however, the 6th columns, the user can put comments, anything, just any characters, like new line, double...

It works properly on my machine, I got "8-17,1".

This is pretty easy one:

#!/usr/bin
for file in *_*
do
r_name=${file#*_}
mv $file $r_name
done

read_num(){
echo "please enter a number"
read num
isNum=$(echo $num | awk -v num=$num '{if( num ~ /^[1-9][0-9]*$/ ) {print "0"} else {print "1"}}')
if [[ $isNum...

This works, but a little silly:

#!/bin/ksh
awk 'BEGIN {FS=","}
{
$4="\""$4"\"";
$(NF-2)="\""$(NF-2)"\"";
$(NF-3)="\""$(NF-3)"\"";
OFS=","
print $0 >...

Here is a quick solution, I think the sections are seperated by a blank line, so set the RS=""; FS="\n"


#!/bin/ksh
read -r heu
awk -v heu=${heu} 'BEGIN{RS=""; FS="\n"}
{
if(match($0,...

Why I still got the error:


#!/bin/ksh
cat "num_str.txt" | while read line
do
echo "line:$line"
sub=${line:3:2}
echo "sub:$sub"
#sub=$(expr substr "$line" 4...

my ksh does not support sub=$(line:4:2);
I have to use sub=$(expr substr $line 4 2);

Just add a simple judgement to see if the sub matches \[0-9][0-9]\ or not.

sub=$(expr substr "$line" 4 2)
val=$(expr "$sub" : '\([0-9][0-9]\)')
if [[ -n "$val" ]]; then
...

awk -F "|" '{arr[$1"|"$2]=arr[$1"|"$2]"|"$3} END {for(i in arr) print i"|" arr[i]}' filename

Here is another simple one:
sed -e 's/([^)]*)//g' 's/\|/;/g' filename

Try this one:
awk -F"[()]" '{
gsub(/\|/, ";", $0);
n=split($0, arr, /[()]/);}
{for (i=1; i<=n; i++)
if(i%2 == 1)
printf ("%s", $i)
}
{print...

Hi,
There are tons of this kind of questions in this forum, why not just search and learn a little bit.

Here is the code:

awk 'NR==FNR {_[$1]; next}
substr($2, 1,3) in _ {print $0}
...

Really, it works fine on my computer.

awk '{
split($5, a, ",");
split($6, b, ",");
for(i=1; i<= $4; i++)
print $1,$2,$3, $4, a[i], b[i]
}' sli.t


X...

save it in a file, then read it in

I did not test this one, but you can do it:

for file in *.csv
do
awk -F"," 'NR==2 {print $1}' ${file} > ${file}_new
done

Try this one:

sed 's/./&\
> /120' filename

try this one:

awk 'f==0 && /Date: 21/ {f=0; getline; f=1}
f==1 && /Date: 21/ {f=0}f' inputfilename

use SED i option.

Try this one, let me know what you get.

awk '!/\\$/ { print $0}
/\\$/ {sub(/\\/, " "); printf $0}
END {print ""}' filename

what's your expected result, and your original input file?

awk '/^[0-9]/ { print ""; printf $0}
!/^[0-9]/ {printf $0}
END {print ""}' filename

awk -F"/" '{for(i=1;i<NF;i++) {printf $i"/"} print ""}' filename