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I am a bank Engineer

oracle's profile is .profile or .bash_profile?

i think your file is made up of fixed-length records ?
if so, you can use head -c and tail -c to extract the specific record.
for exsamples:
suppose the length of record is 512. so, if you want...

try:

dd if=your-ebcdic-file conv=ascii

i think it's better to make a directory, then move these files into it and archive the directory.

step1,
mkdir x
step 2,
find . -name "your-pattern" -exec mv {} x \;
step 3,
tar cf x.tar x
...

try:


cd /opt/cems/log/cemsdbg/db/
find . ! -name "." -type d -prune -o -type f -print

please check whether kill (pid, 9) was really successfully called.

messages written to tty can NOT be redirected.

try:

(
sleep 1
echo username
sleep 1
echo passwd
sleep 1
echo "your-command"
) | telnet x.x.x.x

1, chmod -x /home/scripts/devdb.sh
run it three ways as you listed. anything different?
2, echo "export XXXXX=yyyy" >> /home/scripts/devdb.sh
also run it, then echo $XXXXX
anything different?

remove the first line which contains "#! /usr/bin/nawk -f"

why you use shared memory in thread programming?
pthread_cond_wait + pthread_cond_signal + pthread_mutex_lock + pthread_mutex_unlock will work fine.


producer ...

sort | uniq -d is enough

awk -F "," ' {
cnt[$1] ++
sav[$1] = $0
}
END {
for (x in sav)
if (cnt[x] == 1)
print sav[x]
}' your-file

if you have enough memory, this may works.
maybe the following...

if you are using bash, try this

while IFS='\n' read -r line; do echo $line; done <<< $(cat file)

<<< is here-string

not found the file is not an error. find walk the directory, for any entry it visited, the expression (-name ".....") is evaluated. if the value is true, then print it, else nothing be done. tests...

check your mail box, read error message. maybe you will find a way

awk -F "(,|[ \t]+)" '
NR == FNR {
if (cnt[$1] ++ == 0)
col[j++] = $1
}
NR != FNR {
for (i = 0; i < j; i ++)
printf ("%s%s", i ? " " : "", $(col[i]))
printf ("\n")
}'...

int p[2];
pid_t pid;

pipe(p);
pid = fork();
# if 0
/* delete them */
/* en.. pid == 0 also meets pid < 1 , so child ends here */
if( pid < 1 ){
/* bla bla */
close(p[0]);
close(p[1]);...

if you try to preserve the original order, you can try this

awk '{
if (cnt[$1] ++ == 0)
idx[j++] = $1
rst[$1] = $2 " " rst[$1]
}
END {
for (i = 0; i < j; i ++)
print idx[i],...

perhaps these words listed below are useful for you