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my $pattern = "/abc/def/ghi/xyz.$ENV{HOSTNAME}.2???.??.??.??.??.*";
my ($file) = qx{ls -t $pattern};
print "THE OUTFILE IS ......................... $file";

Assumed that PATH1 and PATH2 WERE defined, it still wouldn't work as it would need a second expansion by the shell after $I or $v have been expanded. You need to use eval for that, but this can be...

Also, your (custom modified) $PATH looks VERY limited, will it find find, ls, grep, awk or even your shell?
With that $PATH, it wont find any of these, if they are at their regular locations. (edit:...

Don't do that, ever. There's many reasons DOS-style path handling never became popular outside DOS.

awk: Use awk
': with the script:
printf(: print
"%s%s": two strings
,$0: where the 1st string is the current input line (without the trailing <newline> character)
,(NR%2)?"\t":"\n"): and the 2nd...

If the executable is /home/execs/testing/compare, then you will either need to:-

Give it the full path in your script, i.e. call /home/execs/testing/compare
Ensure that /home/execs/testing is...

Remove the ' in the commented out line.

Firstly, I would remove the space between #! and /bin/sh on the first line.

Can you post us the full error message? I'm assuming that compare is a function declared within /my_data/environment,...

perl -Mstrict -e 'sub iso_stamp{
my $epoch=shift;my @time=localtime($epoch);
return sprintf "%04d-%02d-%02d.%02d.%02d",$time[5]+1900,$time[4]+1,@time[3,2,1];
}
my...

For your input file, try:-
awk -F, '{$(NF-2)=$(NF-1) FS $NF;NF-=2}1' OFS=, file

Tryawk -F, ' {FN=$1"_a.txt"
NN=split ($NF, NAMES, ";")
getline X < $2; print X > FN
while (getline X < $3)...

following would give output but }!a[$1,$2]' is not good, it is more efficient to use var in array instead of array[var]
$ awk -F"|" 'FNR==NR{a[$1,$2]++;next}!a[$1,$2]' file1 file2

Try also (untested):awk '{sub /^2..../, "&\n")}1' file

Just a thought: If you're want to check whether the file format is dos or unix, then you may do so using the file command too.

$ file dosfile.txt
dosfile.txt: ASCII text, with CRLF line...

Another way to do this using awk once instead of using sed once for each line in the equivalences file is:
awk '
BEGIN { OFS = "\t"}
FNR == NR {ID[$1] = $2;next}
{ if(FNR == 1) sub(/ID/,...

try

awk 'NR==1{S=$NF} NR>1{$(NF+1)=S}1' file

Check the delimiters for substitution.

You will continue to trigger that error so long as the contents of the txt file in the highlighted command substitution exceed your system's available memory (or process mem limit).

Regards,...

With a modern shell:
file_name="rscclog_2013-03-25.txt;3"
mv $file_name ${file_name%;*}

@Pikk45
Wrong : basename would have given the name of the zip file, and not the name of the csv file that is in the zip archive . ;)

This is Useless Use of grep | awk (http://partmaps.org/era/unix/award.html#grep)

Another approach using GNU grep:
grep -o "uid.*" file

That's ironic, since sed may have problems with huge lines, but tr never will!

$ set $(echo $word | fold -2)
$ echo $1 $2 $3 $4 $5
ex ce ll en cy

No, it closes stdout and stderr entirely - your shell won't have any output channel any more.

try also:
paste -d, - - - - - < sample.txt > sampleoutput.csv