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$ echo "Jan" | awk 'BEGIN{months=" JanFebMarAprMayJunJulAugSepOctNovDec"}{print index(months,$0)/3}'
1
$ echo "Feb" | awk 'BEGIN{months=" JanFebMarAprMayJunJulAugSepOctNovDec"}{print...

$ paste -d, - - - < infile
a,b,c
d,e,f
g,h,i
j,,

Standard awk unique program

$ awk '!a[$1,$2]++' input
D A 92.85 1315 83 11
D B 91.82 1321 92 16
D C 89.86 1321 119 15
You also want limited to just 3 matches: awk...

awk '$3||$4||$5||$6||$7' infile

No, awk doesn't have something like an "eval" command.

Try:
awk NF-=1 FS=- OFS=- infile | sort -u
sed 's/-[^-]*$//' infile | sort -u

The > 80 will create a file called 80 (check your directory).

Have you tried:
#!/bin/sh

# Restart WHD if memory usage hits 80% or higher
#

if [ `ps aux | grep java | grep -v "grep" |...

If combined with filename expansion, no.
If combined with a file list that has been word split using standard IFS after command substitution, then yes..

Few points to observe:
1. awk already separates the fields based on whitespaces. So, -F " " is really not necessary.
2. awk follows this: condition {action} by default. So an if-statement can be...

No need for the overhead of the pr command:


# case 1
awk -v f2=file2 ' { c = $2; getline < f2; print c, $5; } ' file1 >output-file

#case 2
awk -v f2=file2 ' { c = $2; getline < f2; print...

Some versions of echo interpet \050 by default, some don't.

Some versions of echo support -e, some don't.

Some shell builtin versions of echo have their own behavior, different from the...

$ cat addfr.awk
BEGIN { A["FRR1"]=0.11; A["FRR4"]=0.13 }

A[$1] {
V=substr($0, 24, 5);
V += A[$1]
$0=substr($0, 0, 23) sprintf("%5s", V) substr($0, 29);
}

1

$ awk...

Is always a bad idea. It's inefficient, since it involves forking another shell and exec'ing ls. Worse, if any of the ls output contains file or directory names which contain IFS characters...