Split string in ash shell? (BusyBox)

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I'm trying to split a string in ash shell using only the tools provided in BusyBox.

The string is of the format host-name:port,host-name2:port2 but I only care about the first hostname and port, both of which I'd like access to as variables.

I've tried a few options I found on here but most pertain to bash and the equivalent commands/functionality doesn't seem to exist in ash shell.

Any ideas?

asked Aug 21 at 12:36

Jamie4840

echo $string%,*
â€“Â Ipor Sircer
Aug 21 at 12:42

@IporSircer That got it, thanks!
â€“Â Jamie4840
Aug 21 at 13:03

add a commentÂ |Â

up vote
0
down vote

favorite

I'm trying to split a string in ash shell using only the tools provided in BusyBox.

The string is of the format host-name:port,host-name2:port2 but I only care about the first hostname and port, both of which I'd like access to as variables.

I've tried a few options I found on here but most pertain to bash and the equivalent commands/functionality doesn't seem to exist in ash shell.

Any ideas?

asked Aug 21 at 12:36

Jamie4840

echo $string%,*
â€“Â Ipor Sircer
Aug 21 at 12:42

@IporSircer That got it, thanks!
â€“Â Jamie4840
Aug 21 at 13:03

add a commentÂ |Â

up vote
0
down vote

favorite

I'm trying to split a string in ash shell using only the tools provided in BusyBox.

The string is of the format host-name:port,host-name2:port2 but I only care about the first hostname and port, both of which I'd like access to as variables.

I've tried a few options I found on here but most pertain to bash and the equivalent commands/functionality doesn't seem to exist in ash shell.

Any ideas?

asked Aug 21 at 12:36

Jamie4840

I'm trying to split a string in ash shell using only the tools provided in BusyBox.

The string is of the format host-name:port,host-name2:port2 but I only care about the first hostname and port, both of which I'd like access to as variables.

I've tried a few options I found on here but most pertain to bash and the equivalent commands/functionality doesn't seem to exist in ash shell.

Any ideas?

shell busybox ash

asked Aug 21 at 12:36

Jamie4840

asked Aug 21 at 12:36

Jamie4840

asked Aug 21 at 12:36

Jamie4840

asked Aug 21 at 12:36

Jamie4840

asked Aug 21 at 12:36

Jamie4840

echo $string%,*
â€“Â Ipor Sircer
Aug 21 at 12:42

@IporSircer That got it, thanks!
â€“Â Jamie4840
Aug 21 at 13:03

add a commentÂ |Â

echo $string%,*
â€“Â Ipor Sircer
Aug 21 at 12:42

@IporSircer That got it, thanks!
â€“Â Jamie4840
Aug 21 at 13:03

echo $string%,*
â€“Â Ipor Sircer
Aug 21 at 12:42

@IporSircer That got it, thanks!
â€“Â Jamie4840
Aug 21 at 13:03

add a commentÂ |Â

1 Answer
1

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up vote
0
down vote

An agnostic (for many shells) solution that works correctly with spaces, newlines and empty fields is:

#!/bin/bash
in='One-XX-X-17.0.0'

a=$in; div='-'; set --
 while
 b=$a#*"$div"
 set -- "$@" "$a%%"$div"*"
 [ "$a" != "$b" ]
 do
 a=$b
 done
printf 'Element: %sn' "$@"

#split 17.0.0 into NUM
a=$4; div='.'; set --
 while
 b=$a#*"$div"
 set -- "$@" "$a%%"$div"*"
 [ "$a" != "$b" ]
 do
 a=$b
 done
printf 'Num: sn' "$@"

Which will print:

$ ./script
Element: One
Element: XX
Element: X
Element: 17.0.0
Num: 17
Num: 0
Num: 0

answered Aug 22 at 2:22

Isaac

7,1311835

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1 Answer
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active

oldest

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1 Answer
1

active

oldest

votes

up vote
0
down vote

An agnostic (for many shells) solution that works correctly with spaces, newlines and empty fields is:

#!/bin/bash
in='One-XX-X-17.0.0'

a=$in; div='-'; set --
 while
 b=$a#*"$div"
 set -- "$@" "$a%%"$div"*"
 [ "$a" != "$b" ]
 do
 a=$b
 done
printf 'Element: %sn' "$@"

#split 17.0.0 into NUM
a=$4; div='.'; set --
 while
 b=$a#*"$div"
 set -- "$@" "$a%%"$div"*"
 [ "$a" != "$b" ]
 do
 a=$b
 done
printf 'Num: sn' "$@"

Which will print:

$ ./script
Element: One
Element: XX
Element: X
Element: 17.0.0
Num: 17
Num: 0
Num: 0

answered Aug 22 at 2:22

Isaac

7,1311835

add a commentÂ |Â

up vote
0
down vote

An agnostic (for many shells) solution that works correctly with spaces, newlines and empty fields is:

#!/bin/bash
in='One-XX-X-17.0.0'

a=$in; div='-'; set --
 while
 b=$a#*"$div"
 set -- "$@" "$a%%"$div"*"
 [ "$a" != "$b" ]
 do
 a=$b
 done
printf 'Element: %sn' "$@"

#split 17.0.0 into NUM
a=$4; div='.'; set --
 while
 b=$a#*"$div"
 set -- "$@" "$a%%"$div"*"
 [ "$a" != "$b" ]
 do
 a=$b
 done
printf 'Num: sn' "$@"

Which will print:

$ ./script
Element: One
Element: XX
Element: X
Element: 17.0.0
Num: 17
Num: 0
Num: 0

answered Aug 22 at 2:22

Isaac

7,1311835

add a commentÂ |Â

up vote
0
down vote

An agnostic (for many shells) solution that works correctly with spaces, newlines and empty fields is:

#!/bin/bash
in='One-XX-X-17.0.0'

a=$in; div='-'; set --
 while
 b=$a#*"$div"
 set -- "$@" "$a%%"$div"*"
 [ "$a" != "$b" ]
 do
 a=$b
 done
printf 'Element: %sn' "$@"

#split 17.0.0 into NUM
a=$4; div='.'; set --
 while
 b=$a#*"$div"
 set -- "$@" "$a%%"$div"*"
 [ "$a" != "$b" ]
 do
 a=$b
 done
printf 'Num: sn' "$@"

Which will print:

$ ./script
Element: One
Element: XX
Element: X
Element: 17.0.0
Num: 17
Num: 0
Num: 0

answered Aug 22 at 2:22

Isaac

7,1311835

An agnostic (for many shells) solution that works correctly with spaces, newlines and empty fields is:

#!/bin/bash
in='One-XX-X-17.0.0'

a=$in; div='-'; set --
 while
 b=$a#*"$div"
 set -- "$@" "$a%%"$div"*"
 [ "$a" != "$b" ]
 do
 a=$b
 done
printf 'Element: %sn' "$@"

#split 17.0.0 into NUM
a=$4; div='.'; set --
 while
 b=$a#*"$div"
 set -- "$@" "$a%%"$div"*"
 [ "$a" != "$b" ]
 do
 a=$b
 done
printf 'Num: sn' "$@"

Which will print:

$ ./script
Element: One
Element: XX
Element: X
Element: 17.0.0
Num: 17
Num: 0
Num: 0

answered Aug 22 at 2:22

Isaac

7,1311835

answered Aug 22 at 2:22

Isaac

7,1311835

answered Aug 22 at 2:22

Isaac

7,1311835

answered Aug 22 at 2:22

Isaac

7,1311835

add a commentÂ |Â

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