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 $_nowOutputs:
01/20/12_16:10:42
I’d like to replace / and : with _. I’m aware of the following sed command:
sed ‘s/\//_/g
> s/:/_/g’ <<<"$_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?
{ 1 comment }
My script depends upon $1 to take certain actions:
file=”$1″
echo “|${file}|”
However, sometime there will leading while space which will result into:
| output.txt|
How do I trim leading white space from one of my input variables?
{ 9 comments }
How can I remove the ^M or ^M (carriage Return / line feed ) from text file using sed under UNIX or Linux operating systems?
{ 1 comment }
Q. How do I find the text between the strings FOO and BAR inclusive using sed command line option?
{ 25 comments }
Q. How do I perform a case-insensitive search using sed under UNIX / Linux? I’d like to match all combination of word – foo, FOO, FoO and so on while replacing or performing other operations.
{ 2 comments }
Linux / UNIX View Only Configuration File Directives ( uncommented lines of a config file )
by Vivek Gite on May 29, 2008 · 6 comments
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?
{ 6 comments }