write variable into specific line with sed command
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echo -n "##### STATIONS? #######"
read station
text="stab_site "
I need to write echo $text$station into the 27th line of text file. I used below command but it didn't work,
sed -i "27i$text$station" text.data
it produce; $textankr ista "text" variable cannot be passed within sed function.
sed
asked Dec 13 '15 at 15:45
deepblue_86deepblue_86
12515
add a comment |
echo -n "##### STATIONS? #######"
read station
text="stab_site "
I need to write echo $text$station into the 27th line of text file. I used below command but it didn't work,
sed -i "27i$text$station" text.data
it produce; $textankr ista "text" variable cannot be passed within sed function.
sed
asked Dec 13 '15 at 15:45
deepblue_86deepblue_86
12515
add a comment |
echo -n "##### STATIONS? #######"
read station
text="stab_site "
I need to write echo $text$station into the 27th line of text file. I used below command but it didn't work,
sed -i "27i$text$station" text.data
it produce; $textankr ista "text" variable cannot be passed within sed function.
sed
asked Dec 13 '15 at 15:45
deepblue_86deepblue_86
12515
echo -n "##### STATIONS? #######"
read station
text="stab_site "
I need to write echo $text$station into the 27th line of text file. I used below command but it didn't work,
sed -i "27i$text$station" text.data
it produce; $textankr ista "text" variable cannot be passed within sed function.
sed
sed
asked Dec 13 '15 at 15:45
deepblue_86deepblue_86
12515
asked Dec 13 '15 at 15:45
deepblue_86deepblue_86
12515
asked Dec 13 '15 at 15:45
deepblue_86deepblue_86
12515
asked Dec 13 '15 at 15:45
deepblue_86deepblue_86
12515
asked Dec 13 '15 at 15:45
deepblue_86deepblue_86
12515
12515
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
That's because your shell is interpreting $ to mean a literal (escaped) dollar sign. Try
sed -i "27i\$text$station" text.data
or using a mix of single- and double-quotes
sed -i '27i'"$text$station" text.data
or with a literal newline
sed -i "27i
$text$station" text.data
(which is more POSIXly correct, I think).
answered Dec 13 '15 at 16:00
steeldriversteeldriver
35.8k35286
how can I give one space after the beginning of the written line?
– deepblue_86
Dec 13 '15 at 16:36
@deepblue_86 where exactly? You should be able to add a literal space anywhere in the replacement text e.g. ` $text$station` or$text $stationor$text$station
– steeldriver
Dec 13 '15 at 16:42
add a comment |
Maybe the problem can be a empty output file.
Example:
#!/bin/bash
CAMINHO='/etc/scripts/dropbox.log'
RESULTADO=`date +%d/%m/%Y | tr 'n' ' '; dropbox status;`
sed -i "1i
$RESULTADO" /etc/scripts/dropbox.log
This script cant write to a empty file dropbox.log.
Write some text on file and execute script again.
answered Jan 14 at 13:25
Lucas CataniLucas Catani
11
The problem was solved with the other answer; why would it be caused by an empty output file?
– Stephen Kitt
Jan 14 at 13:39
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
That's because your shell is interpreting $ to mean a literal (escaped) dollar sign. Try
sed -i "27i\$text$station" text.data
or using a mix of single- and double-quotes
sed -i '27i'"$text$station" text.data
or with a literal newline
sed -i "27i
$text$station" text.data
(which is more POSIXly correct, I think).
answered Dec 13 '15 at 16:00
steeldriversteeldriver
35.8k35286
how can I give one space after the beginning of the written line?
– deepblue_86
Dec 13 '15 at 16:36
@deepblue_86 where exactly? You should be able to add a literal space anywhere in the replacement text e.g. ` $text$station` or$text $stationor$text$station
– steeldriver
Dec 13 '15 at 16:42
add a comment |
That's because your shell is interpreting $ to mean a literal (escaped) dollar sign. Try
sed -i "27i\$text$station" text.data
or using a mix of single- and double-quotes
sed -i '27i'"$text$station" text.data
or with a literal newline
sed -i "27i
$text$station" text.data
(which is more POSIXly correct, I think).
answered Dec 13 '15 at 16:00
steeldriversteeldriver
35.8k35286
how can I give one space after the beginning of the written line?
– deepblue_86
Dec 13 '15 at 16:36
@deepblue_86 where exactly? You should be able to add a literal space anywhere in the replacement text e.g. ` $text$station` or$text $stationor$text$station
– steeldriver
Dec 13 '15 at 16:42
add a comment |
That's because your shell is interpreting $ to mean a literal (escaped) dollar sign. Try
sed -i "27i\$text$station" text.data
or using a mix of single- and double-quotes
sed -i '27i'"$text$station" text.data
or with a literal newline
sed -i "27i
$text$station" text.data
(which is more POSIXly correct, I think).
answered Dec 13 '15 at 16:00
steeldriversteeldriver
35.8k35286
That's because your shell is interpreting $ to mean a literal (escaped) dollar sign. Try
sed -i "27i\$text$station" text.data
or using a mix of single- and double-quotes
sed -i '27i'"$text$station" text.data
or with a literal newline
sed -i "27i
$text$station" text.data
(which is more POSIXly correct, I think).
answered Dec 13 '15 at 16:00
steeldriversteeldriver
35.8k35286
answered Dec 13 '15 at 16:00
steeldriversteeldriver
35.8k35286
answered Dec 13 '15 at 16:00
steeldriversteeldriver
35.8k35286
answered Dec 13 '15 at 16:00
steeldriversteeldriver
35.8k35286
35.8k35286
how can I give one space after the beginning of the written line?
– deepblue_86
Dec 13 '15 at 16:36
@deepblue_86 where exactly? You should be able to add a literal space anywhere in the replacement text e.g. ` $text$station` or$text $stationor$text$station
– steeldriver
Dec 13 '15 at 16:42
add a comment |
how can I give one space after the beginning of the written line?
– deepblue_86
Dec 13 '15 at 16:36
@deepblue_86 where exactly? You should be able to add a literal space anywhere in the replacement text e.g. ` $text$station` or$text $stationor$text$station
– steeldriver
Dec 13 '15 at 16:42
how can I give one space after the beginning of the written line?
– deepblue_86
Dec 13 '15 at 16:36
how can I give one space after the beginning of the written line?
– deepblue_86
Dec 13 '15 at 16:36
@deepblue_86 where exactly? You should be able to add a literal space anywhere in the replacement text e.g. ` $text$station` or
$text $station or $text$station – steeldriver
Dec 13 '15 at 16:42
@deepblue_86 where exactly? You should be able to add a literal space anywhere in the replacement text e.g. ` $text$station` or
$text $station or $text$station – steeldriver
Dec 13 '15 at 16:42
add a comment |
Maybe the problem can be a empty output file.
Example:
#!/bin/bash
CAMINHO='/etc/scripts/dropbox.log'
RESULTADO=`date +%d/%m/%Y | tr 'n' ' '; dropbox status;`
sed -i "1i
$RESULTADO" /etc/scripts/dropbox.log
This script cant write to a empty file dropbox.log.
Write some text on file and execute script again.
answered Jan 14 at 13:25
Lucas CataniLucas Catani
11
The problem was solved with the other answer; why would it be caused by an empty output file?
– Stephen Kitt
Jan 14 at 13:39
add a comment |
Maybe the problem can be a empty output file.
Example:
#!/bin/bash
CAMINHO='/etc/scripts/dropbox.log'
RESULTADO=`date +%d/%m/%Y | tr 'n' ' '; dropbox status;`
sed -i "1i
$RESULTADO" /etc/scripts/dropbox.log
This script cant write to a empty file dropbox.log.
Write some text on file and execute script again.
answered Jan 14 at 13:25
Lucas CataniLucas Catani
11
The problem was solved with the other answer; why would it be caused by an empty output file?
– Stephen Kitt
Jan 14 at 13:39
add a comment |
Maybe the problem can be a empty output file.
Example:
#!/bin/bash
CAMINHO='/etc/scripts/dropbox.log'
RESULTADO=`date +%d/%m/%Y | tr 'n' ' '; dropbox status;`
sed -i "1i
$RESULTADO" /etc/scripts/dropbox.log
This script cant write to a empty file dropbox.log.
Write some text on file and execute script again.
answered Jan 14 at 13:25
Lucas CataniLucas Catani
11
Maybe the problem can be a empty output file.
Example:
#!/bin/bash
CAMINHO='/etc/scripts/dropbox.log'
RESULTADO=`date +%d/%m/%Y | tr 'n' ' '; dropbox status;`
sed -i "1i
$RESULTADO" /etc/scripts/dropbox.log
This script cant write to a empty file dropbox.log.
Write some text on file and execute script again.
answered Jan 14 at 13:25
Lucas CataniLucas Catani
11
answered Jan 14 at 13:25
Lucas CataniLucas Catani
11
answered Jan 14 at 13:25
Lucas CataniLucas Catani
11
answered Jan 14 at 13:25
Lucas CataniLucas Catani
11
11
The problem was solved with the other answer; why would it be caused by an empty output file?
– Stephen Kitt
Jan 14 at 13:39
add a comment |
The problem was solved with the other answer; why would it be caused by an empty output file?
– Stephen Kitt
Jan 14 at 13:39
The problem was solved with the other answer; why would it be caused by an empty output file?
– Stephen Kitt
Jan 14 at 13:39
The problem was solved with the other answer; why would it be caused by an empty output file?
– Stephen Kitt
Jan 14 at 13:39
add a comment |
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