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Finding exact string from variable in an awk commmand?
2019 Community Moderator ElectionConvert string into date time stamp in gawk or awkUsing ARGV to get user input in Awk scriptHow to use grep/awk/unix to match all lines from one file in another file, even if they are duplicatesHow to use ^#$ as record separator in awk?awk ifs and variables - cannot pass a variable from one line towards subsequent linesFind matches from an index file without exact matching and print the last fieldTrouble with awk matchWhere to get the new string after running `sub` in awkmake awk print the line that match a variable and the next n lines and use a variable in awkPrint between lines 7-13 who contain a certain string (awk script)
I'm trying to the use the following awk command to return a user from a file that lists all users on the system but only if the 8th field is empty and they match the user variable (it's being using in a loop):
awk -F':' -v user="$user" 'index($0, user) if ($8=="") print $1' file
My issue currently is that it returns users that contain the string and aren't exact matches. Any way around this?
awk variable
edited Mar 22 at 12:02
Jeff Schaller
43.8k1161141
asked Mar 22 at 11:46
JaBoyoJaBoyo
1
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add a comment |
I'm trying to the use the following awk command to return a user from a file that lists all users on the system but only if the 8th field is empty and they match the user variable (it's being using in a loop):
awk -F':' -v user="$user" 'index($0, user) if ($8=="") print $1' file
My issue currently is that it returns users that contain the string and aren't exact matches. Any way around this?
awk variable
edited Mar 22 at 12:02
Jeff Schaller
43.8k1161141
asked Mar 22 at 11:46
JaBoyoJaBoyo
1
New contributor
JaBoyo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Even if you answered the question yourself it would be good to show some sample input and a corresponding username that can be used to reproduce your problem.
– Bodo
Mar 22 at 12:22
add a comment |
I'm trying to the use the following awk command to return a user from a file that lists all users on the system but only if the 8th field is empty and they match the user variable (it's being using in a loop):
awk -F':' -v user="$user" 'index($0, user) if ($8=="") print $1' file
My issue currently is that it returns users that contain the string and aren't exact matches. Any way around this?
awk variable
edited Mar 22 at 12:02
Jeff Schaller
43.8k1161141
asked Mar 22 at 11:46
JaBoyoJaBoyo
1
New contributor
JaBoyo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
I'm trying to the use the following awk command to return a user from a file that lists all users on the system but only if the 8th field is empty and they match the user variable (it's being using in a loop):
awk -F':' -v user="$user" 'index($0, user) if ($8=="") print $1' file
My issue currently is that it returns users that contain the string and aren't exact matches. Any way around this?
awk variable
awk variable
edited Mar 22 at 12:02
Jeff Schaller
43.8k1161141
asked Mar 22 at 11:46
JaBoyoJaBoyo
1
New contributor
JaBoyo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited Mar 22 at 12:02
Jeff Schaller
43.8k1161141
asked Mar 22 at 11:46
JaBoyoJaBoyo
1
New contributor
JaBoyo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited Mar 22 at 12:02
Jeff Schaller
43.8k1161141
edited Mar 22 at 12:02
Jeff Schaller
43.8k1161141
edited Mar 22 at 12:02
Jeff Schaller
43.8k1161141
43.8k1161141
asked Mar 22 at 11:46
JaBoyoJaBoyo
1
New contributor
JaBoyo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked Mar 22 at 11:46
JaBoyoJaBoyo
1
asked Mar 22 at 11:46
JaBoyoJaBoyo
1
1
New contributor
JaBoyo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
JaBoyo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
JaBoyo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Even if you answered the question yourself it would be good to show some sample input and a corresponding username that can be used to reproduce your problem.
– Bodo
Mar 22 at 12:22
add a comment |
Even if you answered the question yourself it would be good to show some sample input and a corresponding username that can be used to reproduce your problem.
– Bodo
Mar 22 at 12:22
Even if you answered the question yourself it would be good to show some sample input and a corresponding username that can be used to reproduce your problem.
– Bodo
Mar 22 at 12:22
Even if you answered the question yourself it would be good to show some sample input and a corresponding username that can be used to reproduce your problem.
– Bodo
Mar 22 at 12:22
add a comment |
2 Answers
2
active
oldest
votes
Solved it.
I ended up using:
awk -F':' -v user="$user" '$1 == user if ($8 == "") print $1' file
I'm a silly boy lol
answered Mar 22 at 11:53
JaBoyoJaBoyo
1
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JaBoyo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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4
Alternatively,awk ... '$1 == user && $8 == "" print $1 '
– Kusalananda
Mar 22 at 11:56
1
It's best to avoid-vand use environment variables instead (andENVIRON["VARNAME"]inawk) as-vmangles values that contains backslashes. For instance, withuser='r157ot', that would return the entry forrootas-vwould expand that157too
– Stéphane Chazelas
Mar 22 at 18:37
add a comment |
above answers are correct...However we can extract the details using the below command.
awk -F ',' 'if ( $9 == "" && $1 =="$user") print $1' file
answered Mar 22 at 18:16
NizamNizam
1
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
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votes
active
oldest
votes
Solved it.
I ended up using:
awk -F':' -v user="$user" '$1 == user if ($8 == "") print $1' file
I'm a silly boy lol
answered Mar 22 at 11:53
JaBoyoJaBoyo
1
New contributor
JaBoyo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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4
Alternatively,awk ... '$1 == user && $8 == "" print $1 '
– Kusalananda
Mar 22 at 11:56
1
It's best to avoid-vand use environment variables instead (andENVIRON["VARNAME"]inawk) as-vmangles values that contains backslashes. For instance, withuser='r157ot', that would return the entry forrootas-vwould expand that157too
– Stéphane Chazelas
Mar 22 at 18:37
add a comment |
Solved it.
I ended up using:
awk -F':' -v user="$user" '$1 == user if ($8 == "") print $1' file
I'm a silly boy lol
answered Mar 22 at 11:53
JaBoyoJaBoyo
1
New contributor
JaBoyo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
4
Alternatively,awk ... '$1 == user && $8 == "" print $1 '
– Kusalananda
Mar 22 at 11:56
1
It's best to avoid-vand use environment variables instead (andENVIRON["VARNAME"]inawk) as-vmangles values that contains backslashes. For instance, withuser='r157ot', that would return the entry forrootas-vwould expand that157too
– Stéphane Chazelas
Mar 22 at 18:37
add a comment |
Solved it.
I ended up using:
awk -F':' -v user="$user" '$1 == user if ($8 == "") print $1' file
I'm a silly boy lol
answered Mar 22 at 11:53
JaBoyoJaBoyo
1
New contributor
JaBoyo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Solved it.
I ended up using:
awk -F':' -v user="$user" '$1 == user if ($8 == "") print $1' file
I'm a silly boy lol
answered Mar 22 at 11:53
JaBoyoJaBoyo
1
New contributor
JaBoyo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
answered Mar 22 at 11:53
JaBoyoJaBoyo
1
New contributor
JaBoyo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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answered Mar 22 at 11:53
JaBoyoJaBoyo
1
answered Mar 22 at 11:53
JaBoyoJaBoyo
1
1
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New contributor
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4
Alternatively,awk ... '$1 == user && $8 == "" print $1 '
– Kusalananda
Mar 22 at 11:56
1
It's best to avoid-vand use environment variables instead (andENVIRON["VARNAME"]inawk) as-vmangles values that contains backslashes. For instance, withuser='r157ot', that would return the entry forrootas-vwould expand that157too
– Stéphane Chazelas
Mar 22 at 18:37
add a comment |
4
Alternatively,awk ... '$1 == user && $8 == "" print $1 '
– Kusalananda
Mar 22 at 11:56
1
It's best to avoid-vand use environment variables instead (andENVIRON["VARNAME"]inawk) as-vmangles values that contains backslashes. For instance, withuser='r157ot', that would return the entry forrootas-vwould expand that157too
– Stéphane Chazelas
Mar 22 at 18:37
4
4
Alternatively,
awk ... '$1 == user && $8 == "" print $1 '– Kusalananda
Mar 22 at 11:56
Alternatively,
awk ... '$1 == user && $8 == "" print $1 '– Kusalananda
Mar 22 at 11:56
1
1
It's best to avoid
-v and use environment variables instead (and ENVIRON["VARNAME"] in awk) as -v mangles values that contains backslashes. For instance, with user='r157ot', that would return the entry for root as -v would expand that 157 to o– Stéphane Chazelas
Mar 22 at 18:37
It's best to avoid
-v and use environment variables instead (and ENVIRON["VARNAME"] in awk) as -v mangles values that contains backslashes. For instance, with user='r157ot', that would return the entry for root as -v would expand that 157 to o– Stéphane Chazelas
Mar 22 at 18:37
add a comment |
above answers are correct...However we can extract the details using the below command.
awk -F ',' 'if ( $9 == "" && $1 =="$user") print $1' file
answered Mar 22 at 18:16
NizamNizam
1
New contributor
Nizam is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
above answers are correct...However we can extract the details using the below command.
awk -F ',' 'if ( $9 == "" && $1 =="$user") print $1' file
answered Mar 22 at 18:16
NizamNizam
1
New contributor
Nizam is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
above answers are correct...However we can extract the details using the below command.
awk -F ',' 'if ( $9 == "" && $1 =="$user") print $1' file
answered Mar 22 at 18:16
NizamNizam
1
New contributor
Nizam is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
above answers are correct...However we can extract the details using the below command.
awk -F ',' 'if ( $9 == "" && $1 =="$user") print $1' file
answered Mar 22 at 18:16
NizamNizam
1
New contributor
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Check out our Code of Conduct.
answered Mar 22 at 18:16
NizamNizam
1
New contributor
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answered Mar 22 at 18:16
NizamNizam
1
answered Mar 22 at 18:16
NizamNizam
1
1
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New contributor
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-awk, variable
Even if you answered the question yourself it would be good to show some sample input and a corresponding username that can be used to reproduce your problem.
– Bodo
Mar 22 at 12:22