How to translate tr '[a-z]' '[ a- z]'

[Karl Godt]

I think the headline could be self explaining ....

Another thing would be the print or selection of single items of a string :

for example
if I have STR="aBcDEFghIjK?!()} { |\/>.,; " ' 123"

Until now I can only ' elofSTR="`expr length $STR`" '

What is the right syntax for these two questions ?

[Karl Godt]

# echo $STR | sed -r 's/(.)/ \1/g'
A B C D
# echo $STR | sed -r 's|(.)| \1|g'
A B C D
# echo $STR | sed -r 's_(.)_ \1_g'
A B C D
# echo $STR | sed -r 's:(.): \1:g'
A B C D

# echo $STR | sed -r 's:(.): \0:g'
A B C D
# echo $STR | sed -r 's:.: \0:g'
A B C D

[big_bass]

Karl Godt

I found this snip http://www.unix.com/shell-programming-s ... cters.html

you have spaces to start with in your string so enclose the original string with single quotes first then



echo "$STR" | sed 's/./ &/g;s/^ //'

Code: Select all

STR='what  #%$][ % {}  you want  to say :D '
echo "$STR" | sed 's/./ &/g;s/^ //' 

Joe

[technosaurus]

damn just the other day I did this by accident when I was trying to do something else with sed - can't remember, but it was really short and contained *

you can get the length of a string with

${#VAR}

here is an example usage:

Code: Select all

#keeps adding the "9" character to the end of the string NEWVER
# until it is the same length as the string VER
while [ "${#NEWVER}" -lt "${#VER}" ]
do
NEWVER=${NEWVER}9
done

[big_bass]

get string length

here's an easy one to read

Code: Select all

any_variable="some big string goes here"
echo ${#any_variable}

the output is 25

the bold part is the format to use
${#any_variable}

Joe

[Karl Godt]

seems I found another partial cut character for `sed` : '!'

/usr/local/jwmconfig2/focusModel :

SEDFOCUS=s!Model\>${VALUE}!Model\>${CHOICE}!g

sed -e "$SEDFOCUS" $CONFIG > $CONF

[Karl Godt]

/usr/local/jwmconfig2/confirmKey

sed -e "s#ALT#1#i" $TMP1 > $TMP2