by Vivek Gite on January 20, 2012 · 1 comment
I‘m using the date +’%D_%T’ to store Unix system date and time in a shell variable called $_now:
_now=”$(date +’%D_%T’)”
echo $_now
Outputs:
01/20/12_16:10:42
I’d like to replace / and : with _. I’m aware of the following sed command:
sed ‘s/\//_/g
> s/:/_/g’ <<<"$_now"
Outputs:
01_20_12_16_14_09
How do I specify two pattern within the same sed command to replace | and : with _ so that I can get output as 01_20_12_16_10_42?
I recently noticed that one of my UNIX servers was about 4 hours behind the correct time. I wanted to correct the date and time manually. How do I set date and/or time under UNIX operating systems using command line options?
I want to increment the date under UNIX or Linux operating system while writing shell scripts. For example Apr/27/2011 should be incremented as Apr/28/2011 and so on. How do I increment a date in UNIX or Linux shell?
by Vivek Gite on October 27, 2010 · 1 comment
How do I get the system time in BASH? How can I get the Linux system using bash shell?
How do I append current date (mm_dd_yyyy format) to a filename (e.g., backup_mm_dd_yyyy.sql) under UNIX like operating systems?
The rndc stats commands created /var/named/chroot/var/named/data/named_stats.txt file under RHEL 5.x or CentOS 5.x BIND 9 server. However, date is not is correct format. The date is in the following format:
grep ‘Dump’ /var/named/chroot/var/named/data/named_stats.txt
outputs:
+++ Statistics Dump +++ (1263408025)
— Statistics Dump — (1263408025)
+++ Statistics Dump +++ (1263408071)
— Statistics Dump — (1263408071)
+++ Statistics Dump +++ (1268304218)
— Statistics Dump — (1268304218)
+++ Statistics Dump +++ (1268304248)
— Statistics Dump — (1268304248)
How do I convert date (e.g., 1263408025) in a human readable format?
How do I display the current date under Bash UNIX / Linux / OS X shell?