Difference between revisions of "Bash for loop"
From thelinuxwiki
| Line 10: | Line 10: | ||
do | do | ||
echo "the i is $i" | echo "the i is $i" | ||
| + | done | ||
| + | |||
| + | for VARIABLE in 1 2 3 4 5 .. N | ||
| + | do | ||
| + | command1 | ||
| + | command2 | ||
| + | commandN | ||
| + | done | ||
| + | |||
| + | OR | ||
| + | |||
| + | for VARIABLE in file1 file2 file3 | ||
| + | do | ||
| + | command1 on $VARIABLE | ||
| + | command2 | ||
| + | commandN | ||
| + | done | ||
| + | |||
| + | OR | ||
| + | |||
| + | for OUTPUT in $(Linux-Or-Unix-Command-Here) | ||
| + | do | ||
| + | command1 on $OUTPUT | ||
| + | command2 on $OUTPUT | ||
| + | commandN | ||
done | done | ||
[[category:bash]] | [[category:bash]] | ||
Revision as of 14:00, 26 September 2013
Example:
for i in {1..5}
do
echo "Welcome $i times"
done
portable for loop (for older bash versions)
for i in `seq 10` do echo "the i is $i" done
for VARIABLE in 1 2 3 4 5 .. N do
command1 command2 commandN
done
OR
for VARIABLE in file1 file2 file3 do
command1 on $VARIABLE command2 commandN
done
OR
for OUTPUT in $(Linux-Or-Unix-Command-Here) do
command1 on $OUTPUT command2 on $OUTPUT commandN
done
