Variable in sed
Clash Royale CLAN TAG#URR8PPP
I have a file that contains filenames with absolute path.
In the middle of that path, is a variable directory, whenever I hard code the variable part, it works fine, but when I replace it with the variable name, the sed part doesn't work.
The sed part is to delete the pattern or for this matter, the path.
file=`echo $one_file | sed 's:/dir1/dir2/$VAR/last_dir/::'`
shell-script sed filenames quoting
edited Nov 7 '13 at 22:15
Gilles
544k12811071622
asked Nov 7 '13 at 8:52
bostjanbostjan
382
add a comment |
I have a file that contains filenames with absolute path.
In the middle of that path, is a variable directory, whenever I hard code the variable part, it works fine, but when I replace it with the variable name, the sed part doesn't work.
The sed part is to delete the pattern or for this matter, the path.
file=`echo $one_file | sed 's:/dir1/dir2/$VAR/last_dir/::'`
shell-script sed filenames quoting
edited Nov 7 '13 at 22:15
Gilles
544k12811071622
asked Nov 7 '13 at 8:52
bostjanbostjan
382
Try to replace single quotes with double quotes in your sed expression.
– dnk
Nov 7 '13 at 9:06
add a comment |
I have a file that contains filenames with absolute path.
In the middle of that path, is a variable directory, whenever I hard code the variable part, it works fine, but when I replace it with the variable name, the sed part doesn't work.
The sed part is to delete the pattern or for this matter, the path.
file=`echo $one_file | sed 's:/dir1/dir2/$VAR/last_dir/::'`
shell-script sed filenames quoting
edited Nov 7 '13 at 22:15
Gilles
544k12811071622
asked Nov 7 '13 at 8:52
bostjanbostjan
382
I have a file that contains filenames with absolute path.
In the middle of that path, is a variable directory, whenever I hard code the variable part, it works fine, but when I replace it with the variable name, the sed part doesn't work.
The sed part is to delete the pattern or for this matter, the path.
file=`echo $one_file | sed 's:/dir1/dir2/$VAR/last_dir/::'`
shell-script sed filenames quoting
shell-script sed filenames quoting
edited Nov 7 '13 at 22:15
Gilles
544k12811071622
asked Nov 7 '13 at 8:52
bostjanbostjan
382
edited Nov 7 '13 at 22:15
Gilles
544k12811071622
asked Nov 7 '13 at 8:52
bostjanbostjan
382
edited Nov 7 '13 at 22:15
Gilles
544k12811071622
edited Nov 7 '13 at 22:15
Gilles
544k12811071622
edited Nov 7 '13 at 22:15
Gilles
544k12811071622
544k12811071622
asked Nov 7 '13 at 8:52
bostjanbostjan
382
asked Nov 7 '13 at 8:52
bostjanbostjan
382
asked Nov 7 '13 at 8:52
bostjanbostjan
382
382
Try to replace single quotes with double quotes in your sed expression.
– dnk
Nov 7 '13 at 9:06
add a comment |
Try to replace single quotes with double quotes in your sed expression.
– dnk
Nov 7 '13 at 9:06
Try to replace single quotes with double quotes in your sed expression.
– dnk
Nov 7 '13 at 9:06
Try to replace single quotes with double quotes in your sed expression.
– dnk
Nov 7 '13 at 9:06
add a comment |
1 Answer
1
active
oldest
votes
When you use single-quotes, aka hard quotes, variable names are not expanded. You would need to use double-quotes, aka soft quotes.
sed "s:/dir1/dir2/$var/Last_dir/::"
or escape the quotes:
sed 's:/dir1/dir2/'"$var"'/Last_dir/::'
You would also need to be sure that $var does not hold any colon, dot, star, [, newline or backslash characters or that, if it does, they are escaped.
edited Nov 7 '13 at 9:53
Stéphane Chazelas
312k57589946
answered Nov 7 '13 at 9:06
RuniumRunium
18.8k43060
$ s="foo|bar" ; echo foobar | sed 's#.*#'"$s"'#;' works...??
– jirib
Nov 7 '13 at 9:09
@JiriXichtkniha: Yes, but if there is a#, newline etc. you would have trouble.
– Runium
Nov 7 '13 at 9:13
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
When you use single-quotes, aka hard quotes, variable names are not expanded. You would need to use double-quotes, aka soft quotes.
sed "s:/dir1/dir2/$var/Last_dir/::"
or escape the quotes:
sed 's:/dir1/dir2/'"$var"'/Last_dir/::'
You would also need to be sure that $var does not hold any colon, dot, star, [, newline or backslash characters or that, if it does, they are escaped.
edited Nov 7 '13 at 9:53
Stéphane Chazelas
312k57589946
answered Nov 7 '13 at 9:06
RuniumRunium
18.8k43060
$ s="foo|bar" ; echo foobar | sed 's#.*#'"$s"'#;' works...??
– jirib
Nov 7 '13 at 9:09
@JiriXichtkniha: Yes, but if there is a#, newline etc. you would have trouble.
– Runium
Nov 7 '13 at 9:13
add a comment |
When you use single-quotes, aka hard quotes, variable names are not expanded. You would need to use double-quotes, aka soft quotes.
sed "s:/dir1/dir2/$var/Last_dir/::"
or escape the quotes:
sed 's:/dir1/dir2/'"$var"'/Last_dir/::'
You would also need to be sure that $var does not hold any colon, dot, star, [, newline or backslash characters or that, if it does, they are escaped.
edited Nov 7 '13 at 9:53
Stéphane Chazelas
312k57589946
answered Nov 7 '13 at 9:06
RuniumRunium
18.8k43060
$ s="foo|bar" ; echo foobar | sed 's#.*#'"$s"'#;' works...??
– jirib
Nov 7 '13 at 9:09
@JiriXichtkniha: Yes, but if there is a#, newline etc. you would have trouble.
– Runium
Nov 7 '13 at 9:13
add a comment |
When you use single-quotes, aka hard quotes, variable names are not expanded. You would need to use double-quotes, aka soft quotes.
sed "s:/dir1/dir2/$var/Last_dir/::"
or escape the quotes:
sed 's:/dir1/dir2/'"$var"'/Last_dir/::'
You would also need to be sure that $var does not hold any colon, dot, star, [, newline or backslash characters or that, if it does, they are escaped.
edited Nov 7 '13 at 9:53
Stéphane Chazelas
312k57589946
answered Nov 7 '13 at 9:06
RuniumRunium
18.8k43060
When you use single-quotes, aka hard quotes, variable names are not expanded. You would need to use double-quotes, aka soft quotes.
sed "s:/dir1/dir2/$var/Last_dir/::"
or escape the quotes:
sed 's:/dir1/dir2/'"$var"'/Last_dir/::'
You would also need to be sure that $var does not hold any colon, dot, star, [, newline or backslash characters or that, if it does, they are escaped.
edited Nov 7 '13 at 9:53
Stéphane Chazelas
312k57589946
answered Nov 7 '13 at 9:06
RuniumRunium
18.8k43060
edited Nov 7 '13 at 9:53
Stéphane Chazelas
312k57589946
edited Nov 7 '13 at 9:53
Stéphane Chazelas
312k57589946
edited Nov 7 '13 at 9:53
Stéphane Chazelas
312k57589946
312k57589946
answered Nov 7 '13 at 9:06
RuniumRunium
18.8k43060
answered Nov 7 '13 at 9:06
RuniumRunium
18.8k43060
answered Nov 7 '13 at 9:06
RuniumRunium
18.8k43060
18.8k43060
$ s="foo|bar" ; echo foobar | sed 's#.*#'"$s"'#;' works...??
– jirib
Nov 7 '13 at 9:09
@JiriXichtkniha: Yes, but if there is a#, newline etc. you would have trouble.
– Runium
Nov 7 '13 at 9:13
add a comment |
$ s="foo|bar" ; echo foobar | sed 's#.*#'"$s"'#;' works...??
– jirib
Nov 7 '13 at 9:09
@JiriXichtkniha: Yes, but if there is a#, newline etc. you would have trouble.
– Runium
Nov 7 '13 at 9:13
$ s="foo|bar" ; echo foobar | sed 's#.*#'"$s"'#;' works...??
– jirib
Nov 7 '13 at 9:09
$ s="foo|bar" ; echo foobar | sed 's#.*#'"$s"'#;' works...??
– jirib
Nov 7 '13 at 9:09
@JiriXichtkniha: Yes, but if there is a
#, newline etc. you would have trouble.– Runium
Nov 7 '13 at 9:13
@JiriXichtkniha: Yes, but if there is a
#, newline etc. you would have trouble.– Runium
Nov 7 '13 at 9:13
add a comment |
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Try to replace single quotes with double quotes in your sed expression.
– dnk
Nov 7 '13 at 9:06