Hi I am very new to scripting,
Can someone show me how to (in unix shell script) compare the system's date with a date in a file. The requirement is to somehow open this file (which will only have a date in it) and compare it with today's date. If they are equal execute a procedure below but if... (4 Replies)
I need to get the date one month in the future from today - or 30 days from today etc...
I need this to work all year around - I cannot find anything to solve this issue in the search / faqs etc.... (5 Replies)
Hello All,
I have a flat file which contains a field with date information. I want to extract the data less than 2 days before without using 'if' Command.
ie. Contents from a file like ..
Ajay,12-jan-09
rajiv,10-jan-09
Nalini,02-jan-09
Sunil,14-jan-09
Pankaj,11-jan-09
As... (2 Replies)
Hello,
I am trying to show today's date and time in a better format than ‘date' (Using positional parameters). I found a command mktime and am wondering if this is the best command to use or will this also show me the time elapse since 1/30/70? Any help would be greatly appreciated, Thanks... (3 Replies)
Hello,
I have a file like this:
2012112920121130
12345620121130msABowwiqiq
34477420121129amABamauee
e7748420121130ehABeheheei
in case the content of the file has the date of yesterday within the lines containing pattern AB this should be replaced by the current date. But if I use... (3 Replies)
Hi,
One of my Unix scripts needs to look for files coming in on Fridays. This script runs on Mondays. $date +"%y%m%d" will give me today's date. How can I get previous Friday's date.. can I do "today's date minus 3 days" to get Friday's date? If not, then any other way?? Name of the files is... (4 Replies)
Hi
I have file with number status and date1 and date1 field,
want add a column today between column date1 and date2.
file1.txt
number status date1 date2
===== ==== === =====
34567 open 27/06/13 28/06/13
45678 open 27/06/13 28/06/13
43567 open 27/06/13 28/06/13 ... (1 Reply)
hello,
in a file exist entries in date format YYYYMMDD. i want to find out, if there are dates, which isn't today's date.
file:
date example text
20140714 <= not today's date
20140715 <= not today's date
20140716 <= today's date
my idea is to use Perderabo's datecalc
... (2 Replies)
Hi Community!
Following on from this code in another thread:
#!/bin/bash
file_string=`/bin/cat date.txt | /usr/bin/awk '{print $5,$4,$7,$6,$8}'`
file_date=`/bin/date -d "$file_string"`
file_epoch=`/bin/date -d "$file_string" +%s`
now_epoch=`/bin/date +%s`
if
then
#let... (2 Replies)
Discussion started by: Greenage
2 Replies
LEARN ABOUT PLAN9
setuid
SETUID(1) General Commands Manual SETUID(1)NAME
setuid - run a command with a different uid.
SYNOPSIS
setuid username|uid command [ args ]
DESCRIPTION
Setuid changes user id, then executes the specified command. Unlike some versions of su(1), this program doesn't ever ask for a password
when executed with effective uid=root. This program doesn't change the environment; it only changes the uid and then uses execvp() to find
the command in the path, and execute it. (If the command is a script, execvp() passes the command name to /bin/sh for processing.)
For example,
setuid some_user $SHELL
can be used to start a shell running as another user.
Setuid is useful inside scripts that are being run by a setuid-root user -- such as a script invoked with super, so that the script can
execute some commands using the uid of the original user, instead of root. This allows unsafe commands (such as editors and pagers) to be
used in a non-root mode inside a super script. For example, an operator with permission to modify a certain protected_file could use a
super command that simply does:
cp protected_file temp_file
setuid $ORIG_USER ${EDITOR:-/bin/vi} temp_file
cp temp_file protected_file
(Note: don't use this example directly. If the temp_file can somehow be replaced by another user, as might be the case if it's kept in a
temporary directory, there will be a race condition in the time between editing the temporary file and copying it back to the protected
file.)
AUTHOR
Will Deich
local SETUID(1)