I‘m using the date +’%D_%T’ to store Unix system date and time in a shell variable called $_now:
I’d like to replace / and : with _. I’m aware of the following sed command:
> s/:/_/g’ <<<"$_now"
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?
have a file called rsnapshot.conf. It has the words “ssh_args=-p 1222″. How do I match and remove (delete) the words “ssh_args=-p 1222″ from config file using sed command under Linux or Unix like operating systems?
My script depends upon $1 to take certain actions:
However, sometime there will leading while space which will result into:
How do I trim leading white space from one of my input variables?
How do I replace newline (\n) with sed under UNIX / Linux operating systems?
Most Linux / UNIX configuration files are documented using comments, but some time I just need to see line of configuration text in a file. How can I view just the uncommented configuration file directives from squid.conf or httpd.conf file?
Q. How do I find the text between the strings FOO and BAR inclusive using sed command line option?