“unterminated `s' command” when doing substitution with sed [closed]
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I'm trying to run the following sed command:
sed 's?^?'`pwd`'/VOCdevkit/VOC2012/JPEGImages/?; s?$?.jpg?' test.txt > voc.2012.test
But it is responding with an error message:
sed: -e expression #1, char 37: unterminated `s' command
What is the cause of this error and what can I do to correct it?
text-processing sed
edited Mar 10 at 12:50
Kusalananda♦
140k17261435
asked Mar 10 at 10:28
user341038user341038
1
closed as unclear what you're asking by RalfFriedl, GAD3R, Thomas, αғsнιη, Michael Homer Mar 10 at 19:51
Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.
add a comment |
I'm trying to run the following sed command:
sed 's?^?'`pwd`'/VOCdevkit/VOC2012/JPEGImages/?; s?$?.jpg?' test.txt > voc.2012.test
But it is responding with an error message:
sed: -e expression #1, char 37: unterminated `s' command
What is the cause of this error and what can I do to correct it?
text-processing sed
edited Mar 10 at 12:50
Kusalananda♦
140k17261435
asked Mar 10 at 10:28
user341038user341038
1
closed as unclear what you're asking by RalfFriedl, GAD3R, Thomas, αғsнιη, Michael Homer Mar 10 at 19:51
Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.
3
Does the output ofpwdcontain a space?
– Kusalananda♦
Mar 10 at 10:45
add a comment |
I'm trying to run the following sed command:
sed 's?^?'`pwd`'/VOCdevkit/VOC2012/JPEGImages/?; s?$?.jpg?' test.txt > voc.2012.test
But it is responding with an error message:
sed: -e expression #1, char 37: unterminated `s' command
What is the cause of this error and what can I do to correct it?
text-processing sed
edited Mar 10 at 12:50
Kusalananda♦
140k17261435
asked Mar 10 at 10:28
user341038user341038
1
I'm trying to run the following sed command:
sed 's?^?'`pwd`'/VOCdevkit/VOC2012/JPEGImages/?; s?$?.jpg?' test.txt > voc.2012.test
But it is responding with an error message:
sed: -e expression #1, char 37: unterminated `s' command
What is the cause of this error and what can I do to correct it?
text-processing sed
text-processing sed
edited Mar 10 at 12:50
Kusalananda♦
140k17261435
asked Mar 10 at 10:28
user341038user341038
1
edited Mar 10 at 12:50
Kusalananda♦
140k17261435
asked Mar 10 at 10:28
user341038user341038
1
edited Mar 10 at 12:50
Kusalananda♦
140k17261435
edited Mar 10 at 12:50
Kusalananda♦
140k17261435
edited Mar 10 at 12:50
Kusalananda♦
140k17261435
140k17261435
asked Mar 10 at 10:28
user341038user341038
1
asked Mar 10 at 10:28
user341038user341038
1
asked Mar 10 at 10:28
user341038user341038
1
1
closed as unclear what you're asking by RalfFriedl, GAD3R, Thomas, αғsнιη, Michael Homer Mar 10 at 19:51
Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.
closed as unclear what you're asking by RalfFriedl, GAD3R, Thomas, αғsнιη, Michael Homer Mar 10 at 19:51
Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.
3
Does the output ofpwdcontain a space?
– Kusalananda♦
Mar 10 at 10:45
add a comment |
3
Does the output ofpwdcontain a space?
– Kusalananda♦
Mar 10 at 10:45
3
3
Does the output of
pwd contain a space?– Kusalananda♦
Mar 10 at 10:45
Does the output of
pwd contain a space?– Kusalananda♦
Mar 10 at 10:45
add a comment |
1 Answer
1
active
oldest
votes
If the output of pwd contains a space or other whitespace character, then this would split up the sed expression into at least two parts. The first part would be an incomplete s command, and the second part would be taken as a filename.
This happens because the command substitution (the back-ticked pwd) is unquoted, i.e. it occurs outside of any single or double quote.
To remedy this, double quote the command substitution:
sed 's?^?'"$(pwd)"'/VOCdevkit/VOC2012/JPEGImages/?; s?$?.jpg?' test.txt
You may also choose to use the $PWD variable:
sed 's?^?'"$PWD"'/VOCdevkit/VOC2012/JPEGImages/?; s?$?.jpg?' test.txt
However, it looks as if you're just prepending a pathname and appending a filename suffix to every line in a file.
This could be done safer using awk:
awk ' printf("%s/VOCdevkit/VOC2012/JPEGImages/%s.jpgn", ENVIRON["PWD"], $0) ' test.txt
This would work even if $PWD or the lines read from test.txt contained ?, spaces, or strings that could be interpreted as regular expressions.
Testing:
$ pwd
/tmp/shell-yash.Oeo3joN3
$ cat test.txt
hello world
sunny afternoon
bumbling bees
$ awk ' printf("%s/VOCdevkit/VOC2012/JPEGImages/%s.jpgn", ENVIRON["PWD"], $0) ' test.txt
/tmp/shell-yash.Oeo3joN3/VOCdevkit/VOC2012/JPEGImages/hello world.jpg
/tmp/shell-yash.Oeo3joN3/VOCdevkit/VOC2012/JPEGImages/sunny afternoon.jpg
/tmp/shell-yash.Oeo3joN3/VOCdevkit/VOC2012/JPEGImages/bumbling bees.jpg
answered Mar 10 at 11:16
Kusalananda♦Kusalananda
140k17261435
add a comment |
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
If the output of pwd contains a space or other whitespace character, then this would split up the sed expression into at least two parts. The first part would be an incomplete s command, and the second part would be taken as a filename.
This happens because the command substitution (the back-ticked pwd) is unquoted, i.e. it occurs outside of any single or double quote.
To remedy this, double quote the command substitution:
sed 's?^?'"$(pwd)"'/VOCdevkit/VOC2012/JPEGImages/?; s?$?.jpg?' test.txt
You may also choose to use the $PWD variable:
sed 's?^?'"$PWD"'/VOCdevkit/VOC2012/JPEGImages/?; s?$?.jpg?' test.txt
However, it looks as if you're just prepending a pathname and appending a filename suffix to every line in a file.
This could be done safer using awk:
awk ' printf("%s/VOCdevkit/VOC2012/JPEGImages/%s.jpgn", ENVIRON["PWD"], $0) ' test.txt
This would work even if $PWD or the lines read from test.txt contained ?, spaces, or strings that could be interpreted as regular expressions.
Testing:
$ pwd
/tmp/shell-yash.Oeo3joN3
$ cat test.txt
hello world
sunny afternoon
bumbling bees
$ awk ' printf("%s/VOCdevkit/VOC2012/JPEGImages/%s.jpgn", ENVIRON["PWD"], $0) ' test.txt
/tmp/shell-yash.Oeo3joN3/VOCdevkit/VOC2012/JPEGImages/hello world.jpg
/tmp/shell-yash.Oeo3joN3/VOCdevkit/VOC2012/JPEGImages/sunny afternoon.jpg
/tmp/shell-yash.Oeo3joN3/VOCdevkit/VOC2012/JPEGImages/bumbling bees.jpg
answered Mar 10 at 11:16
Kusalananda♦Kusalananda
140k17261435
add a comment |
If the output of pwd contains a space or other whitespace character, then this would split up the sed expression into at least two parts. The first part would be an incomplete s command, and the second part would be taken as a filename.
This happens because the command substitution (the back-ticked pwd) is unquoted, i.e. it occurs outside of any single or double quote.
To remedy this, double quote the command substitution:
sed 's?^?'"$(pwd)"'/VOCdevkit/VOC2012/JPEGImages/?; s?$?.jpg?' test.txt
You may also choose to use the $PWD variable:
sed 's?^?'"$PWD"'/VOCdevkit/VOC2012/JPEGImages/?; s?$?.jpg?' test.txt
However, it looks as if you're just prepending a pathname and appending a filename suffix to every line in a file.
This could be done safer using awk:
awk ' printf("%s/VOCdevkit/VOC2012/JPEGImages/%s.jpgn", ENVIRON["PWD"], $0) ' test.txt
This would work even if $PWD or the lines read from test.txt contained ?, spaces, or strings that could be interpreted as regular expressions.
Testing:
$ pwd
/tmp/shell-yash.Oeo3joN3
$ cat test.txt
hello world
sunny afternoon
bumbling bees
$ awk ' printf("%s/VOCdevkit/VOC2012/JPEGImages/%s.jpgn", ENVIRON["PWD"], $0) ' test.txt
/tmp/shell-yash.Oeo3joN3/VOCdevkit/VOC2012/JPEGImages/hello world.jpg
/tmp/shell-yash.Oeo3joN3/VOCdevkit/VOC2012/JPEGImages/sunny afternoon.jpg
/tmp/shell-yash.Oeo3joN3/VOCdevkit/VOC2012/JPEGImages/bumbling bees.jpg
answered Mar 10 at 11:16
Kusalananda♦Kusalananda
140k17261435
add a comment |
If the output of pwd contains a space or other whitespace character, then this would split up the sed expression into at least two parts. The first part would be an incomplete s command, and the second part would be taken as a filename.
This happens because the command substitution (the back-ticked pwd) is unquoted, i.e. it occurs outside of any single or double quote.
To remedy this, double quote the command substitution:
sed 's?^?'"$(pwd)"'/VOCdevkit/VOC2012/JPEGImages/?; s?$?.jpg?' test.txt
You may also choose to use the $PWD variable:
sed 's?^?'"$PWD"'/VOCdevkit/VOC2012/JPEGImages/?; s?$?.jpg?' test.txt
However, it looks as if you're just prepending a pathname and appending a filename suffix to every line in a file.
This could be done safer using awk:
awk ' printf("%s/VOCdevkit/VOC2012/JPEGImages/%s.jpgn", ENVIRON["PWD"], $0) ' test.txt
This would work even if $PWD or the lines read from test.txt contained ?, spaces, or strings that could be interpreted as regular expressions.
Testing:
$ pwd
/tmp/shell-yash.Oeo3joN3
$ cat test.txt
hello world
sunny afternoon
bumbling bees
$ awk ' printf("%s/VOCdevkit/VOC2012/JPEGImages/%s.jpgn", ENVIRON["PWD"], $0) ' test.txt
/tmp/shell-yash.Oeo3joN3/VOCdevkit/VOC2012/JPEGImages/hello world.jpg
/tmp/shell-yash.Oeo3joN3/VOCdevkit/VOC2012/JPEGImages/sunny afternoon.jpg
/tmp/shell-yash.Oeo3joN3/VOCdevkit/VOC2012/JPEGImages/bumbling bees.jpg
answered Mar 10 at 11:16
Kusalananda♦Kusalananda
140k17261435
If the output of pwd contains a space or other whitespace character, then this would split up the sed expression into at least two parts. The first part would be an incomplete s command, and the second part would be taken as a filename.
This happens because the command substitution (the back-ticked pwd) is unquoted, i.e. it occurs outside of any single or double quote.
To remedy this, double quote the command substitution:
sed 's?^?'"$(pwd)"'/VOCdevkit/VOC2012/JPEGImages/?; s?$?.jpg?' test.txt
You may also choose to use the $PWD variable:
sed 's?^?'"$PWD"'/VOCdevkit/VOC2012/JPEGImages/?; s?$?.jpg?' test.txt
However, it looks as if you're just prepending a pathname and appending a filename suffix to every line in a file.
This could be done safer using awk:
awk ' printf("%s/VOCdevkit/VOC2012/JPEGImages/%s.jpgn", ENVIRON["PWD"], $0) ' test.txt
This would work even if $PWD or the lines read from test.txt contained ?, spaces, or strings that could be interpreted as regular expressions.
Testing:
$ pwd
/tmp/shell-yash.Oeo3joN3
$ cat test.txt
hello world
sunny afternoon
bumbling bees
$ awk ' printf("%s/VOCdevkit/VOC2012/JPEGImages/%s.jpgn", ENVIRON["PWD"], $0) ' test.txt
/tmp/shell-yash.Oeo3joN3/VOCdevkit/VOC2012/JPEGImages/hello world.jpg
/tmp/shell-yash.Oeo3joN3/VOCdevkit/VOC2012/JPEGImages/sunny afternoon.jpg
/tmp/shell-yash.Oeo3joN3/VOCdevkit/VOC2012/JPEGImages/bumbling bees.jpg
answered Mar 10 at 11:16
Kusalananda♦Kusalananda
140k17261435
edited Mar 10 at 11:46
answered Mar 10 at 11:16
Kusalananda♦Kusalananda
140k17261435
answered Mar 10 at 11:16
Kusalananda♦Kusalananda
140k17261435
answered Mar 10 at 11:16
Kusalananda♦Kusalananda
140k17261435
140k17261435
add a comment |
add a comment |
3
Does the output of
pwdcontain a space?– Kusalananda♦
Mar 10 at 10:45