Difference between revisions of "Printf formatting"
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| − | + | if you want information overload...go here [http://wiki.bash-hackers.org/commands/builtin/printf http://wiki.bash-hackers.org/commands/builtin/printf] | |
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| + | '''simple column width formatting + justification''' | ||
| + | |||
| + | $ printf "%10s%10s\n" "foo" "bar" | ||
| + | foo bar | ||
| + | |||
| + | $ printf "%-10s%10s\n" "foo" "bar" kkkj | ||
| + | foo bar | ||
| + | |||
| + | $ printf "%10s%-10s\n" "foo" "bar" | ||
| + | foobar | ||
| + | |||
| + | $ printf "%-10s%-10s\n" "foo" "bar" | ||
| + | foo bar | ||
| + | |||
| + | |||
| + | == scientific notation to decimal conversion == | ||
| + | |||
| + | # echo "8.46145e+09" | awk '{ printf ("%.0f\n",$1) }' | ||
| + | 8461450000 | ||
| + | |||
| + | where the %.0f does the work... 0 is for 0 decimal places, f = floating point | ||
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[[category:bash]] | [[category:bash]] | ||
Latest revision as of 05:14, 10 January 2014
if you want information overload...go here http://wiki.bash-hackers.org/commands/builtin/printf
simple column width formatting + justification
$ printf "%10s%10s\n" "foo" "bar"
foo bar
$ printf "%-10s%10s\n" "foo" "bar" kkkj foo bar
$ printf "%10s%-10s\n" "foo" "bar"
foobar
$ printf "%-10s%-10s\n" "foo" "bar" foo bar
scientific notation to decimal conversion
# echo "8.46145e+09" | awk '{ printf ("%.0f\n",$1) }'
8461450000
where the %.0f does the work... 0 is for 0 decimal places, f = floating point
