shell script

[wanaka_1]

Hi,

I need to compile a mailing list from multiple line to one single line

From multiple line
abc@mydomain.com
bcd@mydomain.com
efe@mydomain.com

to single line
abc@mydomain.com,bcd@mydomain.com,efe@mydomain.com

Of course I can write the output to a file and do a while loop. Is there anyway I can do it in one single line of command

[RAC_1]

tr '\n' ',' < your_file

[Kenan Erdey]

hi;

awk '{printf "%s,",$0}' file_name > out_file

[wanaka_1]

The method is ok but the kena script will print the last one end with ','.

[Peter Godron]

Hi,
how about:
paste -s -d"," filename | sed "$ s/,$//"

[Peter Nikitka]

Hi,

so you need something more awk:
awk 'last {printf last","};{last=$0};END {print last}' filename

mfG Peter

[H.Merijn Brand (procura]

Soooo many ways to do that

These two will not add a trailing comma

# perl -nle'push@x,$_}END{chomp@x;print join","@x' file

# perl -le'BEGIN{$/=undef}chomp(@x=<>);print join",",@x' file

The good tr example and this short command will

# perl -pe's/\n/,/' file

Enjoy, Have FUN! H.Merijn

[Peter Godron]

Hi,
please also read:
http://forums1.itrc.hp.com/service/forums/helptips.do?#28