10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
I am trying to fetch the latest modified file from a directory using the command
find . -type f -exec ls -lt \{\} \+ | head | awk '{print $9}'
After the O/P, I get the below mentioned error and the command doesnt terminate at all.
find: ls terminated by signal 13
find: ls terminated by... (2 Replies)
Discussion started by: Sree10
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2. Shell Programming and Scripting
How can I find that time when maximum number of users were login in last 24 hours. We have 500 users in that server.
---------- Post updated at 02:13 PM ---------- Previous update was at 01:17 PM ----------
on particular date 26-march-2013. Just for example we want to trace in which timings... (5 Replies)
Discussion started by: learnbash
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3. Shell Programming and Scripting
I want to change the permission of a dir to 777 after every hour in a background process.I do not have the access to the crontab , is there another way of doing it a scrit of some thing like that . Any help will be great. (1 Reply)
Discussion started by: neeraj617
1 Replies
4. Shell Programming and Scripting
hi everyone
suppose i have many directory under one directory. now i want to find out the last modified directory
so i executed the command
ls -ltr
but it gives me the directory structure too and i don't want this
so i removed 'r' also but it too gives me directory... (2 Replies)
Discussion started by: aishsimplesweet
2 Replies
5. Shell Programming and Scripting
Hi
I need to copy last modified directory from path /users/bin to be copied to /tmp in a perl script ...somehow my script is not allowing me to do cd /users/bin.
i have tried
$dir = `find /users/bin -maxdepth 1 -type d -mtime 0 `
cp -R $dir /tmp/new
but it says missing destination... (1 Reply)
Discussion started by: shaveta
1 Replies
6. Shell Programming and Scripting
Hi,
I have to copy last modified Directory to another directory.How can i Do using pipe or redirect
cp -R 'ls -lrt|tail -1' test is not working.
please help. (3 Replies)
Discussion started by: shaveta
3 Replies
7. Shell Programming and Scripting
trying to find a way to locate files modified in the last hour in a shell script, unfortunately the command 'find . -mmin -60' is not supported on SunOS 5.10 (works on OpenSolaris 5.11 :mad:)
Does anyone know a method of doing this in shell script on 5.10?
cheers (19 Replies)
Discussion started by: rich@ardz
19 Replies
8. Shell Programming and Scripting
Hi,
I have an application which creates some directories while running. I want to delete these directories which are 4 days older.
i tried
find . type d -mtime +1 -print
And it is working fine..
but
find . type d -mtime +4 -print
is not giving any results which are 4 days... (6 Replies)
Discussion started by: Tuxidow
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9. UNIX for Dummies Questions & Answers
how to use sed command to find and replace a directory
i have a file.. which contains lot of paths ...
for eg.. file contains..
/usr/kk/rr/12345/1
/usr/kk/rr/12345/2
/usr/kk/rr/12345/3
/usr/kk/rr/12345/4
/usr/kk/rr/12345/5
/usr/kk/rr/12345/6
/usr/kk/rr/12345/7... (1 Reply)
Discussion started by: wip_vasikaran
1 Replies
10. Shell Programming and Scripting
Hi
If there is a file upload done from a remote server
and if the file remains without being extracted for more than an hour,
I need to identify the files and create an alert message to the
users in the other end.
please help me writing a shell script for it.
Regards
Yazhini (2 Replies)
Discussion started by: yazhini.t
2 Replies
crontab(5) File Formats Manual crontab(5)
Name
crontab - clock daemon table file
Syntax
/usr/lib/crontab
Description
The command executes at specified dates and times according to the instructions in the file. The file consists of lines with six fields
each. The format for a line is as follows:
minute hour day month weekday command
The following list defines each field in the line:
minute (0-59) The exact minute that the command sequence executes.
hour (0-23) The hour of the day that the command sequence executes.
day (1-31) The day of the month that the command sequence executes.
month (1-12) The month of the year that the command sequence executes.
weekday (1-7) The day of the week that the command sequence executes. Monday = 1, Tuesday = 2, and so forth.
command The complete command sequence variable that is to be executed. Note that the command string must conform to Bourne shell
syntax.
The first five integer fields may be specified as follows:
o A single number in the specified range
o Two numbers separated by a minus, meaning a range inclusive
o A list of numbers separated by commas, meaning any of the numbers
o An asterisk meaning all legal values
The sixth field is a string that is executed by the shell at the specified times. A percent sign (%) in this field is translated to a new-
line character. Only the first line of the command field, up to a percent sign (%) or end of line, is executed by the shell. The other
lines are made available to the command as standard input.
Examples
The following example is part of a file:
# periodic things
0,15,30,45 * * * * (echo '^M' `date`; echo '') >/dev/console
0,15,30,45 * * * * /usr/lib/atrun
# daily stuff
5 4 * * * sh /usr/adm/newsyslog
15 4 * * * ( cd /usr/preserve; find . -mtime +7 -a -exec rm -f {} ; )
20 4 * * * find /usr/msgs -mtime +21 -a ! -perm 444 -a ! -name bounds
-a -exec rm -f {} ;
# NOTE: The above line is wrapped.
# local cleanups
30 4 * * * find /usr/spool/mqueue -type f -mtime +5 -name df-exec rm {} ;
35 4 * * * find /usr/spool/mqueue -type f -mtime +5 -name tf-exec rm {} ;
40 4 * * * find /usr/spool/rwho -type f -mtime +21 -exec rm {} ;
#
# redirecting error output
0 17 * * 1,3,5 /bin/tar -cv /usr/sysads/smith > /dev/console 2>&1
#
Files
See Also
sh(1), cron(8)
Guide to System Environment Setup
crontab(5)