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I wrote by accident:
cd .
and even hit ENTER.

Then I realized this is probably the most useless command that you can imagine. Yes, perhaps it could assert that there is still a working...

The Linux resolver queries all nameservers in the order they are listed in /etc/resolver.conf.
If a nameserver times out, it advances on to the following nameserver.
But, if a nameserver returns...

It is wise to not reveal the password to anybody who is able to run a ps -ef | grep sqlplus command. Therefore:
$ORACLE_HOME/bin/sqlplus -s << SQLEND
connect $APP_USER
@$HOME/sql/your_SQL.sql...

If you are viewing the file in vi, ^[ is a representation of the character escape (ESC, 0x1b) and ESC[01;34 is a terminal command to change the color.

You have an ls command that is doing colored...

cat bigfile
a
b
c
d potter
e
f pattern
g
h
i
j

grep -n 'p.tter' bigfile
4:d potter
6:f pattern

a=$(grep -n 'p.tter' bigfile)
a=${a%%:*}
echo $a
4

p='$INSTALL_BASEPATH/onereview-5.0/resources/commons-messages/commonmessages_default.properties'
p=/${p#*/}
p=${p%/*}
echo "[$p]"
[/onereview-5.0/resources/commons-messages]

cat source.txt
1;xxxxx;xxxxxxxxxx|xxxx;xxx;aaaaaa;4#a1x;x;x;x;xxxx#a2x;x;xx;x;xxx#a3xx;xx;xxx;x;xxx#a4xx;xx;xx;x;x...

The script has many unnecessary calls to external commands like sort, uniq, wc, expr...
Some blocks could be rewritten as a single call to awk. For example:

while read myline
do
echo...

gawk -F'[/: ]' '
/^..\/..\/..../{j=strftime("%j",mktime($3" "$2" "$1" 00 00 00"))}
/^..:../{print j,$1$2,$3}
' infile > outfile

Right. In this case however >> does not hurt, since the files are newly created.



Right. It is funny that I didn't include a close() because you originally didn't provide it.

mkdir tmp
awk...

FILENAME==s is always true since it can happen only just after s=FILENAME.

>FILENAME is writing to the same file that awk is reading, I believe this is not a good idea. Plus, to append to a file...

This is a tough one.

Could be done with awk, but to simplify its work I believe it would be a good idea to first combine all the files in one file in such a way that all the original information...

man join

.Z suffix is not really a good test to ascertain if a file is compressed with compress.

I believe this is better:

if [[ $(file $MYFILE) = *"compressed data"* ]]

Sounds like the file start.sh is missing the x mode bits.

chmod u+x start.sh

Also you should explicitly state in the first line of the script what is the interpreter program that should be...

This is not trivial.
Possible solutions include perl, ksh93, GNU date command, GNU awk.

GNU date:
last_sunday_yyyymmdd=$(date -d "-$(date +%w) days" +%Y%m%d)
day_of_run=20090523...

Also doing even the join work in awk:
nawk '
NR==FNR { c = a[$1]; a[$1] = c?c" "$2:$2; next }
{ c = a[$1]
if (c) {
split(c,b)
for (k in b) {
p = $2<b[k]?$2" "$1" "b[k]:b[k]"...

join -o 1.2 0 2.2 -1 1 -2 1 file1 file1 | nawk '!a[$3$2$1];{a[$1$2$3]++}'

This may perform better (or not) with a large file1:

join -o 1.2 0 2.2 -1 1 -2 1 file1 file1 | nawk...

It's just another way to specify some text to send to the stdandard input.

It seems that ssh actively refuses any input from the standard input if not connected to an interactive terminal.
...

# two passes
varname=$b$i
eval value=\$$varname

# one shot
eval value=\$$b$i

awk -F'[^0-9]+' '{b=b (NR>1?"|":"")($2?sprintf("%02d:%02d %02d:%02d",$2,$3,$4,$5):"")}END{print b}' yourfile.txt

If you really want 11 spaces instead of a blank field, then:

awk -F'[^0-9]+'...

result="$(small.sh ${arrayname
})"
result="$(small.sh ${arrayname[@]})"

Why?
$@ was there to replicate for ls the arguments given to the command hls, so that you can say for example:
hls -rS /bin/*



I was using ls from Debian Linux, $5 was the size and $8 was...

#!/usr/bin/ksh
ls -l $@ | awk '
/^-/ {
l = 5*log($5)
h = sprintf("%7d %-72s",$5,$8)
print "\x1B[7m" substr(h,1,l) "\x1B[27m" substr(h,l+1)
}
'

ls command with histogram of file sizes.
The...

uggc://ra.jvxvcrqvn.bet/jvxv/EBG13

#!/usr/bin/awk -f

BEGIN {
for (n=0;n<26;n++) {
x=sprintf("%c",n+65); y=sprintf("%c",(n+13)%26+65)
r[x]=y; r[tolower(x)]=tolower(y)
}
}

{
b =...