An awk script which generates shell commands is probably not the greatest idea, it would be a security and quoting nightmare. It's not the use of awk or sh, as much as the way they're joined, that's the problem. What if someone's password happens to be '" ; sleep 900000 ? That would be fun. Handle the reading yourself, so that there's no opportunity for arbitrary execution.
I'd forgotten about join, though, that simplifies my script a lot:
Last edited by Corona688; 01-06-2017 at 05:10 PM..
Reason: fix typo: joint/join
Hello people
I need to find a way to generate a file that contains the names of all *.jpg files that were generated after a specific date
The search should start in my current folder and recursively search inner folders
It would be best to list the file names one below the other in the output... (3 Replies)
Hi Expert,
I have some confusing to generate report from the log file as shown below:
filename :test1.log
start_time date end_time number code
P 000029.621 20070823 000029 12134567890 111111111111 00 0 000 003... (4 Replies)
Im trying to come up with a way to automate moving logs as they generate from one server to another. Anyone have script or idea how most simply to get it done ? want to get this working so dont have to monitor and move these logs during the evening. Thanks for any ideas
-Vinman (2 Replies)
Is there a tool that can diff a directory and generate a change list of files in that directory based on a previous snapshot on the directory?
For example
/etc/a.txt:changed
/etc/b.txt:removed
/etc/c.txt:added
Thanks! (1 Reply)
Hi, I'm newbie in Bash scripting.
Here is scenario I've a file which containslist of 100 mailgroup and in a directory i have 100 files with each group's respective mail addresses.
I'd like to make one CSV file with this information as follows.
consolidated files with
mailid,groupname.
... (7 Replies)
I copied all JPEGs from my laptop to an external drive using
find . -name "*.jpg" -exec cp '{}' ./media/Backup/pictures \;
And then deleted all of them from my laptop.
Now, I realize that I need the folder path of all the original JPEGs as the path has the important information.
I dont... (1 Reply)
Hi.
I'm new on this forum and I need if possible someone to help me with one script.
The script should act like this:
- should be run by crontab and have next parameters:
script_name $par1 $par2 $par3 $par4
where script will search in dir $par1 for files with mask $par2 and if number of... (2 Replies)
Dear Gents,
Please I need your help... I need small script :) to do the following.
I have a thousand of files in a folder produced daily.
I need first to merge all files called. txt (0009.txt, 0010.txt, 0011.txt) and and to output a resume of all information on 2 separate files in csv... (14 Replies)
Hello,
I have 2 tables (first file with colon separated, second file comma separated) like below:
Please note that the matching number (kind of primary key) is a number and is NOT unique. It is 2nd column in table1 and 4th column in table2.
# cat table1
vgbpjdata1:80
vgbpjdata2:50... (6 Replies)
i need my script1.sh to generate /tmp/temp.txt with full permissions i.e
-rwxrwxrwx 1 user1 users 23 Dec 16 10:52 /tmp/temp.txtmore script1.sh
umask 666
echo "hello">/tmp/temp.txt
But the script1.sh generates temp.txt with different permissions as shown below.
-rwxr-xr-x 1 user1 users... (6 Replies)
Discussion started by: mohtashims
6 Replies
LEARN ABOUT OPENDARWIN
sleep
SLEEP(1) BSD General Commands Manual SLEEP(1)NAME
sleep -- suspend execution for an interval of time
SYNOPSIS
sleep seconds
DESCRIPTION
The sleep command suspends execution for a minimum of seconds.
If the sleep command receives a signal, it takes the standard action.
IMPLEMENTATION NOTES
The SIGALRM signal is not handled specially by this implementation.
The sleep command will accept and honor a non-integer number of specified seconds (with a '.' character as a decimal point). This is a non-
portable extension, and its use will nearly guarantee that a shell script will not execute properly on another system.
EXAMPLES
To schedule the execution of a command for x number seconds later (with csh(1)):
(sleep 1800; sh command_file >& errors)&
This incantation would wait a half hour before running the script command_file. (See the at(1) utility.)
To reiteratively run a command (with the csh(1)):
while (1)
if (! -r zzz.rawdata) then
sleep 300
else
foreach i (`ls *.rawdata`)
sleep 70
awk -f collapse_data $i >> results
end
break
endif
end
The scenario for a script such as this might be: a program currently running is taking longer than expected to process a series of files, and
it would be nice to have another program start processing the files created by the first program as soon as it is finished (when zzz.rawdata
is created). The script checks every five minutes for the file zzz.rawdata, when the file is found, then another portion processing is done
courteously by sleeping for 70 seconds in between each awk job.
DIAGNOSTICS
The sleep utility exits 0 on success, and >0 if an error occurs.
SEE ALSO nanosleep(2), sleep(3)STANDARDS
The sleep command is expected to be IEEE Std 1003.2 (``POSIX.2'') compatible.
HISTORY
A sleep command appeared in Version 4 AT&T UNIX.
BSD April 18, 1994 BSD