Simple “Variable” Bash File
I just want to make a bash file that takes a file name as a parameter. In that bash file, I want to take the name before the extension and have it as a "variable", to use in other places. For example, if I was to run bash_script_name sample.asm, the bash script would run:
nasm -f elf sample.asm
ld -s -o sample sample.o io.o
So basically the form of bash_script_name $().asm
nasm -f elf $().asm
ld -s -o $() $().o io.o
... however I would do that in bash.
bash shell-script
edited 1 hour ago
Rui F Ribeiro
41.5k1483140
asked Nov 13 '10 at 21:57
ChigginsChiggins
1604
add a comment |
I just want to make a bash file that takes a file name as a parameter. In that bash file, I want to take the name before the extension and have it as a "variable", to use in other places. For example, if I was to run bash_script_name sample.asm, the bash script would run:
nasm -f elf sample.asm
ld -s -o sample sample.o io.o
So basically the form of bash_script_name $().asm
nasm -f elf $().asm
ld -s -o $() $().o io.o
... however I would do that in bash.
bash shell-script
edited 1 hour ago
Rui F Ribeiro
41.5k1483140
asked Nov 13 '10 at 21:57
ChigginsChiggins
1604
add a comment |
I just want to make a bash file that takes a file name as a parameter. In that bash file, I want to take the name before the extension and have it as a "variable", to use in other places. For example, if I was to run bash_script_name sample.asm, the bash script would run:
nasm -f elf sample.asm
ld -s -o sample sample.o io.o
So basically the form of bash_script_name $().asm
nasm -f elf $().asm
ld -s -o $() $().o io.o
... however I would do that in bash.
bash shell-script
edited 1 hour ago
Rui F Ribeiro
41.5k1483140
asked Nov 13 '10 at 21:57
ChigginsChiggins
1604
I just want to make a bash file that takes a file name as a parameter. In that bash file, I want to take the name before the extension and have it as a "variable", to use in other places. For example, if I was to run bash_script_name sample.asm, the bash script would run:
nasm -f elf sample.asm
ld -s -o sample sample.o io.o
So basically the form of bash_script_name $().asm
nasm -f elf $().asm
ld -s -o $() $().o io.o
... however I would do that in bash.
bash shell-script
bash shell-script
edited 1 hour ago
Rui F Ribeiro
41.5k1483140
asked Nov 13 '10 at 21:57
ChigginsChiggins
1604
edited 1 hour ago
Rui F Ribeiro
41.5k1483140
asked Nov 13 '10 at 21:57
ChigginsChiggins
1604
edited 1 hour ago
Rui F Ribeiro
41.5k1483140
edited 1 hour ago
Rui F Ribeiro
41.5k1483140
edited 1 hour ago
Rui F Ribeiro
41.5k1483140
41.5k1483140
asked Nov 13 '10 at 21:57
ChigginsChiggins
1604
asked Nov 13 '10 at 21:57
ChigginsChiggins
1604
asked Nov 13 '10 at 21:57
ChigginsChiggins
1604
1604
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
The first argument to the script will be in $1. You can use a bash string replacement to pull the extension; this removes everything from the last occurrence of . forward, and stores the result in $filename:
filename="${1%.*}"
Then you can use $filename in your script wherever you want:
nasm -f elf "$filename.asm"
ld -s -o "$filename" "$filename".o io.o
answered Nov 13 '10 at 22:13
Michael Mrozek♦Michael Mrozek
61.8k29192212
add a comment |
This particular answer to a similar question on Stack Overflow seems to have been very well thought out.
It includes logic to deal with files with no dots in them ("somefile"), and files with multiple dots in them ("somefile.tar.gz").
edited May 23 '17 at 11:33
Community♦
1
answered Jun 10 '12 at 15:25
killermistkillermist
954922
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
The first argument to the script will be in $1. You can use a bash string replacement to pull the extension; this removes everything from the last occurrence of . forward, and stores the result in $filename:
filename="${1%.*}"
Then you can use $filename in your script wherever you want:
nasm -f elf "$filename.asm"
ld -s -o "$filename" "$filename".o io.o
answered Nov 13 '10 at 22:13
Michael Mrozek♦Michael Mrozek
61.8k29192212
add a comment |
The first argument to the script will be in $1. You can use a bash string replacement to pull the extension; this removes everything from the last occurrence of . forward, and stores the result in $filename:
filename="${1%.*}"
Then you can use $filename in your script wherever you want:
nasm -f elf "$filename.asm"
ld -s -o "$filename" "$filename".o io.o
answered Nov 13 '10 at 22:13
Michael Mrozek♦Michael Mrozek
61.8k29192212
add a comment |
The first argument to the script will be in $1. You can use a bash string replacement to pull the extension; this removes everything from the last occurrence of . forward, and stores the result in $filename:
filename="${1%.*}"
Then you can use $filename in your script wherever you want:
nasm -f elf "$filename.asm"
ld -s -o "$filename" "$filename".o io.o
answered Nov 13 '10 at 22:13
Michael Mrozek♦Michael Mrozek
61.8k29192212
The first argument to the script will be in $1. You can use a bash string replacement to pull the extension; this removes everything from the last occurrence of . forward, and stores the result in $filename:
filename="${1%.*}"
Then you can use $filename in your script wherever you want:
nasm -f elf "$filename.asm"
ld -s -o "$filename" "$filename".o io.o
answered Nov 13 '10 at 22:13
Michael Mrozek♦Michael Mrozek
61.8k29192212
edited Nov 13 '10 at 23:25
answered Nov 13 '10 at 22:13
Michael Mrozek♦Michael Mrozek
61.8k29192212
answered Nov 13 '10 at 22:13
Michael Mrozek♦Michael Mrozek
61.8k29192212
answered Nov 13 '10 at 22:13
Michael Mrozek♦Michael Mrozek
61.8k29192212
61.8k29192212
add a comment |
add a comment |
This particular answer to a similar question on Stack Overflow seems to have been very well thought out.
It includes logic to deal with files with no dots in them ("somefile"), and files with multiple dots in them ("somefile.tar.gz").
edited May 23 '17 at 11:33
Community♦
1
answered Jun 10 '12 at 15:25
killermistkillermist
954922
add a comment |
This particular answer to a similar question on Stack Overflow seems to have been very well thought out.
It includes logic to deal with files with no dots in them ("somefile"), and files with multiple dots in them ("somefile.tar.gz").
edited May 23 '17 at 11:33
Community♦
1
answered Jun 10 '12 at 15:25
killermistkillermist
954922
add a comment |
This particular answer to a similar question on Stack Overflow seems to have been very well thought out.
It includes logic to deal with files with no dots in them ("somefile"), and files with multiple dots in them ("somefile.tar.gz").
edited May 23 '17 at 11:33
Community♦
1
answered Jun 10 '12 at 15:25
killermistkillermist
954922
This particular answer to a similar question on Stack Overflow seems to have been very well thought out.
It includes logic to deal with files with no dots in them ("somefile"), and files with multiple dots in them ("somefile.tar.gz").
edited May 23 '17 at 11:33
Community♦
1
answered Jun 10 '12 at 15:25
killermistkillermist
954922
edited May 23 '17 at 11:33
Community♦
1
edited May 23 '17 at 11:33
Community♦
1
edited May 23 '17 at 11:33
Community♦
1
1
answered Jun 10 '12 at 15:25
killermistkillermist
954922
answered Jun 10 '12 at 15:25
killermistkillermist
954922
answered Jun 10 '12 at 15:25
killermistkillermist
954922
954922
add a comment |
add a comment |
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