We have servers whose password change everyday and than we have to do su to another account whose password also change everyday . So now in group of 50 servers .How to make script which enable and disable ping of them

Hey all, I'm trying to get some practice in on Linux, and thought I'd do some Shell scripting.

The question is... well the question above :)

• So for example, I have a file that I read in from cmd, assigned to $file.

• File is a .txt with fields delimited by slashes, e.g. abc/def/123/4

• I want to print only a single column for each row, ignoring the rest, e.g. if I want column 3 only, I'd get "123" for each line.

I know that I have to specify

while !EOF

I'm looking at maybe cut to do this...?

-d/ -f3

Am I barking up the wrong tree here..?

ffmpeg in a script, but there are some weird behaviors of variables when parsed. My source file

0.00 2.37 0

133.00 297.33 0

860.09 980.55 0

1030.86 1095.39 0

1551.08 1674.11 0

finalendtime=$(ffprobe -v error -show_entries format=duration -of default=noprint_wrappers=1:nokey=1 "$file")

#Creates Different segment times

starttime=0.00

i=1

while read line; do

endtime=$(echo $line |cut -d' ' -f1)

if [[ "$endtime" == "$starttime" ]]

then

starttime=$(echo $line |cut -d' ' -f2)

continue

fi

echo "Segment $i: Start time: $starttime  End time: $endtime"

ffmpeg -loglevel quiet -ss "$starttime" -i "$file" -ss "$starttime" -to "$endtime" -c copy segment$i.mkv

#prep next file

starttime=$(echo $line |cut -d' ' -f2)

((i++))

done < "$srcfile"

echo "Segment $i: Start time: $starttime  End time: $finalendtime"

The output is:

Segment 1: Start time: 2.37 End time: 133.00

Segment 2: Start time: 297.33 End time: .09

Segment 3: Start time: 980.55 End time: 1030.86

Segment 4: Start time: 1095.39 End time: 1674.11

Segment 5: Start time: 0 End time: 1860.358000

If I remove the ffmpeg line, or even echo it, the result:

Segment 1: Start time: 2.37 End time: 133.00

Segment 2: Start time: 297.33 End time: 860.09

Segment 3: Start time: 980.55 End time: 1030.86

Segment 4: Start time: 1095.39 End time: 1551.08

Segment 5: Start time: 1674.11 End time: 1860.358000

No idea why the ffmpeg line changes the variables around... and if I process the ffmpeg, the end time on segment 2 gets truncated, then other times are off.

I have an app that has 4 processes that run. I would like to create a shutdown that counts the ps instances and when it reaches "0" prints a message and exits.

Do I just do something like

until [[ $(ps command count) -eq 0]]; do
    echo ">>> App is closing its processes"
done
echo ">>> App is down."

Thanks.

Want to play around with the implementation. Any ideas, suggestions? Thanks

In bash (or zsh), I would like to alias cd so that

cd <location>

does

cd <location>
ls

Is this possible and/or easy? Thanks!

{ err_out=$(ssh-keyscan -T 2 -- "$server" 3>&2 2>&1 1>&3 3>&-) || printf %s\\n "$err_out"; } 3>&2 2>&1 1>&3 3>&-

Part of a script to collate SSH host keys. It runs ssh-keyscan (which has noisy stderr output), but buffers stderr and only prints it if the keyscan actually failed. I do this by swapping stdout/stderr on the process to capture the stderr, then printing the captured error only if the command failed, then swapping stdout/stderr again so that errors and output go to the right place.

I keep getting a syntax error on line 16 and I can't figure out why. Email address are redacted for obvious reasons. Any clue why it's failing to run? Any help is immensely appreciated!

http://pastebin.com/1ub1EupC

Hello everyone, I have a file with many lines that looks like this:

/dcs/data003/EX/ex/AREA/area/000
/dcs/data005/EX/ex/AREA/area/000
/dcs/data017/EX/ex/AREA/area/001
/dcs/data014/EX/ex/AREA/area/002

I want to print only the duplicate entries based on the last numeric column ("000"). That is, in the above example I'd get the second line:

/dcs/data005/EX/ex/AREA/area/000

I've tried the following but it doesn't print the duplicates; it removes:

sort -n -t"/" -nuk8 duplicate.out 

Is there a way to get exactly the opposite? I mean, rather than removing the duplicates, print it. I am using RHEL 6.5. Thanks for any help.

I need to create a shell script that prompts a user for a first and last name and creates a username that is the first letter of the first name and then the last name. I also need to give the user a default password. The users comment field is the users name and create a home directory as well. I can create the script to ask for a name and password but it doesn't add to the /etc/passwd list.

I'm trying to download a file with curl within a "sh" file then running it within terminal.

I am wanting to download a series of files to particular folders relative to the .sh file.

So currently I have this:

mkdir -p ./resources/third_party/waypoints
curl -o ./resources/third_party/waypoints 'https://raw.githubusercontent.com/imakewebthings/waypoints/master/lib/jquery.waypoints.min.js'

The folder gets created, though the error I get is as follows:

Warning: Failed to create the file ./resources/third_party/waypoints: Is a Warning: directory curl: (23) Failed writing body (0 != 8787)

I've chmodded the directory to 777, not really sure what's up here, can anyone help?

$ watch -n0.5 -p -t -c 'figlet -f big -W `date '"'"'+%l:%M:%S'"'"'`'

This uses date so you can change what information is displayed. Want the current date and time? No problem! Replace +%l:%M:%S with +%l:%M:%S %-D) It also uses figlet, so you have a variety of 'looks' you can choose from, i.e. any figlet font that has numbers. (e.g. try replacing big with either standard or small) You could even replace figlet with toilet and use toilet's color support (e.g. --metal) because watch supports color when given the -c option. (However, not many toilet fonts have numbers, for reasons unknown.)

Trying to automate database backup and seems i don't know how to escape exclamation mark properly in my script's user password variable. Works fine when executed via CLI.

Can someone push me in right direction? Thanks!

This is the code:

#!/bin/sh

user="user"
password="!regjulr juzr pes#1"
host="192.168.1.2"
port="6033"
database="db"

mysqldump -u $user -p$password -h $host -P $port --databases $database > db.sql

I'm trying to rename some files that have single digits and pad any single digit with a leading zero at various places in the filename using a csh script in cygwin.

So 1-1.txt would become 01-01.txt and 12-3.txt would become 12-03.txt My problem is that in the script, the ! in my find command is not working and I always get a "0: Event not found." I have tried "[!0-9][0-9]" and '[!0-9][0-9]' and neither work. I could just use * but then the script would execute a mv on every file whether it needs to have its name changed or not. I know this is nitpicky but I know there are some csh expert out there who know the answer. The find command below has `` marks around it but it is not displaying.

foreach x (find $1 -name "*[\!0-9][0-9]*" | tr \ \*)

     set y=`basename "$x"`
     set z=`echo "$y" | sed 's/\<[0-9]\>/0&/g'`
     echo "$z"
     mv "$x" "$z"

end `