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i have changed the way you told and its working fine..

This should come close, but the 1st line in the 2nd file will be split into fields using the wrong value for FS (since field splitting will be done before FS is reset). Assuming that there could be...

To find words that have at least one double but not more than 3:

sed -n -e '/\(.\)\1/!d; s//&/4; t' -e p

The number can be parameterized with a shell variable.

Regards,
Alister

This awk gives what OP request
awk -F"[: ]+" '/newjob/&&f {printf "\n%s",$2} /newjob/&&!f {printf $2;f=1} /command/ {print "~"$3;f=0}' file
abc~a=b+c
bbc~c=r+v
ddc
kkc~c=l+g
mdc
ldc...

That's not an error, it's a notice.

TAR won't add a file with its absolute. That's a good thing that could save your skin one day!

The first script is running sed in a subshell environment; the second is not. The subshell is a byproduct of the shell's pipeline implementation. The difference is that when $i is incremented in a...

Putting the too many arguments into find hasn't stopped them from being too many arguments. You need to not give them too many arguments.

Let find handle the pattern matching. That way, you only...

I will only breakdown the first example. From that hopefully you'll be able to understand the rest.

There are three levels of parsing in `sed -e "s/\//\\\//g"` which may consider a backslash to be...

You can achieve it like this:

v=$(echo $v|sed -e 's/\//\\\//g')
or
v=`echo $v|sed -e 's/\\//\\\\\//g'`