05-12-2008
stripping certain characters in at the middle of a string
I am trying to strip out certain characters from a string on both (left & right) sides. For example, line=see@hear|touch, i only want to echo the "hear" part. Well i have tried this approach:
line=see@hear|touch
templine=${line#*@} #removed "see@"
echo ${templine%%\|*} #removed "|touch"
hear
...apparently it worked but i want to do this in only one line. Can anyone suggest a way on how to do this?
Another question, what if i added some more characters like this:
line=see@hear|touch|smell
...now i wanted to separate each and every one of them dynamically* like this: (*the values for templine2, 3 & 4 may vary)
templine1=see
templine2=hear
templine3=touch
templine4=smell
...can anyone also suggest on this one?
Many thanks
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TRIM(3) 1 TRIM(3)
trim - Strip whitespace (or other characters) from the beginning and end of a string
SYNOPSIS
string trim (string $str, [string $character_mask = " 0r B"])
DESCRIPTION
This function returns a string with whitespace stripped from the beginning and end of $str. Without the second parameter, trim(3) will
strip these characters:
o " " (ASCII
32 ( 0x20)), an ordinary space.
o " " (ASCII
9 ( 0x09)), a tab.
o "
" (ASCII
10 ( 0x0A)), a new line (line feed).
o "
" (ASCII
13 ( 0x0D)), a carriage return.
o "