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Updated Sc2086 (markdown)

koalaman
2015-04-29 18:19:15 -07:00
parent 647abe3142
commit 5e107b9c05
1 changed files with 7 additions and 2 deletions
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Sc2086.md

@@ -22,10 +22,15 @@ Sometimes you want to split on spaces, like when building a command line.
options="-j 5 -B"
make $options file
Just quoting this doesn't work. Instead, you should have used an array:
Just quoting this doesn't work. Instead, you should have used an array (bash):
options=(-j 5 -B)
make "${options[@]}" file
To split on spaces but not perform glob expansion, Bash has a `set -f` to disable globbing. You can disable word splitting by setting IFS="".
or a function (POSIX):
make_with_flags() { make -j 5 -B "$@"; }
make_with_flags file
To split on spaces but not perform glob expansion, Posix has a `set -f` to disable globbing. You can disable word splitting by setting IFS="".