First character of a variable in a shell script to uppercase?
You could use
strModuleToTestUpper=`sed 's/\(.\)/\U\1/' <<< "$strModuleToTest"`
Explanation
\(.\)
matches a single character\U\1
replaces that character with an uppercase version- no
/g
means only the first match is processed.
If:
s=somemodule
with bash v4+
echo ${s^}
This should work with a bit older bash versions (from Glenn):
echo $(tr a-z A-Z <<< ${s:0:1})${s:1}")
with zsh
echo ${(C)s}
with ash and coreutils
echo $(echo $s | cut -c1 | tr a-z A-Z)$(echo $s | cut -c2-)
with GNU sed
echo $s | sed 's/./\U&/'
with BSD sed
echo $s | sed '
h;
y/quvwxzdermatoglyphicsbfjkn/QUVWXZDERMATOGLYPHICSBFJKN/;
G;
s/\(.\)[^\n]*\n.\(.*\)/\1\2/;
'
with awk
echo $s | awk '{ print toupper(substr($0, 1, 1)) substr($0, 2) }'
with perl
echo $s | perl -nE 'say ucfirst'
with python
echo $s | python -c 'import sys; print sys.stdin.readline().rstrip().capitalize()'
with ruby
echo $s | ruby -e 'puts ARGF.read.capitalize'
Output in all cases
Somemodule
Is perl ok?
$ x=foobar
$ x=$(echo "$x" | perl -pe 's/^(.)/uc($1)/e')
$ echo $x
Foobar