Multiple substitutions in zsh?
Clash Royale CLAN TAG#URR8PPP
I have a function that creates a new markdown file, but I was wondering how can I simplify this?
today=$(date +"%F")
title=$1:l
clean_title=$title//[^a-zA-Z0-9]/-
filename="$today-$clean_title.markdown"
I figured I could combine the title/clean_title into one, but when I try something like ${1:l... or ${$1:l... I get console error about bad substitution. Is this possible?
scripting zsh
edited Feb 9 at 18:59
Rui F Ribeiro
40.9k1479137
asked Jan 9 '17 at 21:42
KevinKevin
1063
add a comment |
I have a function that creates a new markdown file, but I was wondering how can I simplify this?
today=$(date +"%F")
title=$1:l
clean_title=$title//[^a-zA-Z0-9]/-
filename="$today-$clean_title.markdown"
I figured I could combine the title/clean_title into one, but when I try something like ${1:l... or ${$1:l... I get console error about bad substitution. Is this possible?
scripting zsh
edited Feb 9 at 18:59
Rui F Ribeiro
40.9k1479137
asked Jan 9 '17 at 21:42
KevinKevin
1063
add a comment |
I have a function that creates a new markdown file, but I was wondering how can I simplify this?
today=$(date +"%F")
title=$1:l
clean_title=$title//[^a-zA-Z0-9]/-
filename="$today-$clean_title.markdown"
I figured I could combine the title/clean_title into one, but when I try something like ${1:l... or ${$1:l... I get console error about bad substitution. Is this possible?
scripting zsh
edited Feb 9 at 18:59
Rui F Ribeiro
40.9k1479137
asked Jan 9 '17 at 21:42
KevinKevin
1063
I have a function that creates a new markdown file, but I was wondering how can I simplify this?
today=$(date +"%F")
title=$1:l
clean_title=$title//[^a-zA-Z0-9]/-
filename="$today-$clean_title.markdown"
I figured I could combine the title/clean_title into one, but when I try something like ${1:l... or ${$1:l... I get console error about bad substitution. Is this possible?
scripting zsh
scripting zsh
edited Feb 9 at 18:59
Rui F Ribeiro
40.9k1479137
asked Jan 9 '17 at 21:42
KevinKevin
1063
edited Feb 9 at 18:59
Rui F Ribeiro
40.9k1479137
asked Jan 9 '17 at 21:42
KevinKevin
1063
edited Feb 9 at 18:59
Rui F Ribeiro
40.9k1479137
edited Feb 9 at 18:59
Rui F Ribeiro
40.9k1479137
edited Feb 9 at 18:59
Rui F Ribeiro
40.9k1479137
40.9k1479137
asked Jan 9 '17 at 21:42
KevinKevin
1063
asked Jan 9 '17 at 21:42
KevinKevin
1063
asked Jan 9 '17 at 21:42
KevinKevin
1063
1063
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
Nest the $... bits, though do also consider how readable the code will be for future readers.
() clean_title=$$1:l//[^a-zA-Z0-9]/-; printf "$clean_title" " BLA "
Also the A-Z match probably doesn't make much sense given the earlier lowercase...
answered Jan 10 '17 at 1:08
thrigthrig
25k23157
add a comment |
In zsh, you can nest parameter expansion operators. You can also get the date with the prompt expansion of %D%F (zsh also has a strftime builtin in the zsh/datetime module if you want some more verbose and readable code).
filename=$(%):-%D%F-$$1//[^[:alnum:]]/-:l
answered Feb 9 at 19:29
Stéphane ChazelasStéphane Chazelas
308k57582940
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
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active
oldest
votes
Nest the $... bits, though do also consider how readable the code will be for future readers.
() clean_title=$$1:l//[^a-zA-Z0-9]/-; printf "$clean_title" " BLA "
Also the A-Z match probably doesn't make much sense given the earlier lowercase...
answered Jan 10 '17 at 1:08
thrigthrig
25k23157
add a comment |
Nest the $... bits, though do also consider how readable the code will be for future readers.
() clean_title=$$1:l//[^a-zA-Z0-9]/-; printf "$clean_title" " BLA "
Also the A-Z match probably doesn't make much sense given the earlier lowercase...
answered Jan 10 '17 at 1:08
thrigthrig
25k23157
add a comment |
Nest the $... bits, though do also consider how readable the code will be for future readers.
() clean_title=$$1:l//[^a-zA-Z0-9]/-; printf "$clean_title" " BLA "
Also the A-Z match probably doesn't make much sense given the earlier lowercase...
answered Jan 10 '17 at 1:08
thrigthrig
25k23157
Nest the $... bits, though do also consider how readable the code will be for future readers.
() clean_title=$$1:l//[^a-zA-Z0-9]/-; printf "$clean_title" " BLA "
Also the A-Z match probably doesn't make much sense given the earlier lowercase...
answered Jan 10 '17 at 1:08
thrigthrig
25k23157
answered Jan 10 '17 at 1:08
thrigthrig
25k23157
answered Jan 10 '17 at 1:08
thrigthrig
25k23157
answered Jan 10 '17 at 1:08
thrigthrig
25k23157
25k23157
add a comment |
add a comment |
In zsh, you can nest parameter expansion operators. You can also get the date with the prompt expansion of %D%F (zsh also has a strftime builtin in the zsh/datetime module if you want some more verbose and readable code).
filename=$(%):-%D%F-$$1//[^[:alnum:]]/-:l
answered Feb 9 at 19:29
Stéphane ChazelasStéphane Chazelas
308k57582940
add a comment |
In zsh, you can nest parameter expansion operators. You can also get the date with the prompt expansion of %D%F (zsh also has a strftime builtin in the zsh/datetime module if you want some more verbose and readable code).
filename=$(%):-%D%F-$$1//[^[:alnum:]]/-:l
answered Feb 9 at 19:29
Stéphane ChazelasStéphane Chazelas
308k57582940
add a comment |
In zsh, you can nest parameter expansion operators. You can also get the date with the prompt expansion of %D%F (zsh also has a strftime builtin in the zsh/datetime module if you want some more verbose and readable code).
filename=$(%):-%D%F-$$1//[^[:alnum:]]/-:l
answered Feb 9 at 19:29
Stéphane ChazelasStéphane Chazelas
308k57582940
In zsh, you can nest parameter expansion operators. You can also get the date with the prompt expansion of %D%F (zsh also has a strftime builtin in the zsh/datetime module if you want some more verbose and readable code).
filename=$(%):-%D%F-$$1//[^[:alnum:]]/-:l
answered Feb 9 at 19:29
Stéphane ChazelasStéphane Chazelas
308k57582940
answered Feb 9 at 19:29
Stéphane ChazelasStéphane Chazelas
308k57582940
answered Feb 9 at 19:29
Stéphane ChazelasStéphane Chazelas
308k57582940
answered Feb 9 at 19:29
Stéphane ChazelasStéphane Chazelas
308k57582940
308k57582940
add a comment |
add a comment |
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