Extracting text from a file when I know its format
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I am running a script which will output a file called scServer.scs which looks something like this:
49138@bber0501u29b.bb2.cluster
2
Solution 1
Fluid Flow (Fluent)
Solution
Transient Structural
7443_bber0501u29b.bb2.cluster
27412@lic-server1.abc.ac.uk
Later in the script I need to reference the "49138" and "bber0501u29b.bb2.cluster" but they will be different every time I run the script. So after my script generates scServer.scs I need to extract those pieces of text and write them as variables?
linux text-processing awk sed scripting
edited Mar 7 at 15:57
Jeff Schaller♦
44.6k1162145
asked Mar 7 at 15:43
CFD-TesterCFD-Tester
103
add a comment |
I am running a script which will output a file called scServer.scs which looks something like this:
49138@bber0501u29b.bb2.cluster
2
Solution 1
Fluid Flow (Fluent)
Solution
Transient Structural
7443_bber0501u29b.bb2.cluster
27412@lic-server1.abc.ac.uk
Later in the script I need to reference the "49138" and "bber0501u29b.bb2.cluster" but they will be different every time I run the script. So after my script generates scServer.scs I need to extract those pieces of text and write them as variables?
linux text-processing awk sed scripting
edited Mar 7 at 15:57
Jeff Schaller♦
44.6k1162145
asked Mar 7 at 15:43
CFD-TesterCFD-Tester
103
1
is the data always on line 1? or the first one in the format of user@host? How do we know it's the right data?
– Jeff Schaller♦
Mar 7 at 15:58
It is always in that format, always on line 1, I belive RoVo has the answer
– CFD-Tester
Mar 7 at 16:17
add a comment |
I am running a script which will output a file called scServer.scs which looks something like this:
49138@bber0501u29b.bb2.cluster
2
Solution 1
Fluid Flow (Fluent)
Solution
Transient Structural
7443_bber0501u29b.bb2.cluster
27412@lic-server1.abc.ac.uk
Later in the script I need to reference the "49138" and "bber0501u29b.bb2.cluster" but they will be different every time I run the script. So after my script generates scServer.scs I need to extract those pieces of text and write them as variables?
linux text-processing awk sed scripting
edited Mar 7 at 15:57
Jeff Schaller♦
44.6k1162145
asked Mar 7 at 15:43
CFD-TesterCFD-Tester
103
I am running a script which will output a file called scServer.scs which looks something like this:
49138@bber0501u29b.bb2.cluster
2
Solution 1
Fluid Flow (Fluent)
Solution
Transient Structural
7443_bber0501u29b.bb2.cluster
27412@lic-server1.abc.ac.uk
Later in the script I need to reference the "49138" and "bber0501u29b.bb2.cluster" but they will be different every time I run the script. So after my script generates scServer.scs I need to extract those pieces of text and write them as variables?
linux text-processing awk sed scripting
linux text-processing awk sed scripting
edited Mar 7 at 15:57
Jeff Schaller♦
44.6k1162145
asked Mar 7 at 15:43
CFD-TesterCFD-Tester
103
edited Mar 7 at 15:57
Jeff Schaller♦
44.6k1162145
asked Mar 7 at 15:43
CFD-TesterCFD-Tester
103
edited Mar 7 at 15:57
Jeff Schaller♦
44.6k1162145
edited Mar 7 at 15:57
Jeff Schaller♦
44.6k1162145
edited Mar 7 at 15:57
Jeff Schaller♦
44.6k1162145
44.6k1162145
asked Mar 7 at 15:43
CFD-TesterCFD-Tester
103
asked Mar 7 at 15:43
CFD-TesterCFD-Tester
103
asked Mar 7 at 15:43
CFD-TesterCFD-Tester
103
103
1
is the data always on line 1? or the first one in the format of user@host? How do we know it's the right data?
– Jeff Schaller♦
Mar 7 at 15:58
It is always in that format, always on line 1, I belive RoVo has the answer
– CFD-Tester
Mar 7 at 16:17
add a comment |
1
is the data always on line 1? or the first one in the format of user@host? How do we know it's the right data?
– Jeff Schaller♦
Mar 7 at 15:58
It is always in that format, always on line 1, I belive RoVo has the answer
– CFD-Tester
Mar 7 at 16:17
1
1
is the data always on line 1? or the first one in the format of user@host? How do we know it's the right data?
– Jeff Schaller♦
Mar 7 at 15:58
is the data always on line 1? or the first one in the format of user@host? How do we know it's the right data?
– Jeff Schaller♦
Mar 7 at 15:58
It is always in that format, always on line 1, I belive RoVo has the answer
– CFD-Tester
Mar 7 at 16:17
It is always in that format, always on line 1, I belive RoVo has the answer
– CFD-Tester
Mar 7 at 16:17
add a comment |
3 Answers
3
active
oldest
votes
If your data is always in the first line and in format user@domain, you can do this:
Extract the first line and use shell parameter expansion:
firstline=$(head -n1 file)
user=$firstline%@*
domain=$firstline##*@
answered Mar 7 at 15:58
RoVoRoVo
3,442317
add a comment |
Using read and awk:
read -r user domain < <(awk -F@ 'NR==1print $1,$2' scServer.scs)
Will extract the first line of scServer.scs and separate two fields using @ as the field separator, assign the first field to the user variable and the second to the domain variable
answered Mar 7 at 16:55
Jesse_bJesse_b
14.3k33574
add a comment |
g=`awk -F "@" 'NR==1print $1' filename `
y=`awk -F "@" 'NR==1print $NF' filename `
praveen@praveen:/tmp$ echo $g
49138
praveen@praveen:/tmp$ echo $y
bber0501u29b.bb2.cluster
answered Mar 10 at 13:20
Praveen Kumar BSPraveen Kumar BS
1,7391311
add a comment |
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3 Answers
3
active
oldest
votes
3 Answers
3
active
oldest
votes
active
oldest
votes
active
oldest
votes
If your data is always in the first line and in format user@domain, you can do this:
Extract the first line and use shell parameter expansion:
firstline=$(head -n1 file)
user=$firstline%@*
domain=$firstline##*@
answered Mar 7 at 15:58
RoVoRoVo
3,442317
add a comment |
If your data is always in the first line and in format user@domain, you can do this:
Extract the first line and use shell parameter expansion:
firstline=$(head -n1 file)
user=$firstline%@*
domain=$firstline##*@
answered Mar 7 at 15:58
RoVoRoVo
3,442317
add a comment |
If your data is always in the first line and in format user@domain, you can do this:
Extract the first line and use shell parameter expansion:
firstline=$(head -n1 file)
user=$firstline%@*
domain=$firstline##*@
answered Mar 7 at 15:58
RoVoRoVo
3,442317
If your data is always in the first line and in format user@domain, you can do this:
Extract the first line and use shell parameter expansion:
firstline=$(head -n1 file)
user=$firstline%@*
domain=$firstline##*@
answered Mar 7 at 15:58
RoVoRoVo
3,442317
answered Mar 7 at 15:58
RoVoRoVo
3,442317
answered Mar 7 at 15:58
RoVoRoVo
3,442317
answered Mar 7 at 15:58
RoVoRoVo
3,442317
3,442317
add a comment |
add a comment |
Using read and awk:
read -r user domain < <(awk -F@ 'NR==1print $1,$2' scServer.scs)
Will extract the first line of scServer.scs and separate two fields using @ as the field separator, assign the first field to the user variable and the second to the domain variable
answered Mar 7 at 16:55
Jesse_bJesse_b
14.3k33574
add a comment |
Using read and awk:
read -r user domain < <(awk -F@ 'NR==1print $1,$2' scServer.scs)
Will extract the first line of scServer.scs and separate two fields using @ as the field separator, assign the first field to the user variable and the second to the domain variable
answered Mar 7 at 16:55
Jesse_bJesse_b
14.3k33574
add a comment |
Using read and awk:
read -r user domain < <(awk -F@ 'NR==1print $1,$2' scServer.scs)
Will extract the first line of scServer.scs and separate two fields using @ as the field separator, assign the first field to the user variable and the second to the domain variable
answered Mar 7 at 16:55
Jesse_bJesse_b
14.3k33574
Using read and awk:
read -r user domain < <(awk -F@ 'NR==1print $1,$2' scServer.scs)
Will extract the first line of scServer.scs and separate two fields using @ as the field separator, assign the first field to the user variable and the second to the domain variable
answered Mar 7 at 16:55
Jesse_bJesse_b
14.3k33574
answered Mar 7 at 16:55
Jesse_bJesse_b
14.3k33574
answered Mar 7 at 16:55
Jesse_bJesse_b
14.3k33574
answered Mar 7 at 16:55
Jesse_bJesse_b
14.3k33574
14.3k33574
add a comment |
add a comment |
g=`awk -F "@" 'NR==1print $1' filename `
y=`awk -F "@" 'NR==1print $NF' filename `
praveen@praveen:/tmp$ echo $g
49138
praveen@praveen:/tmp$ echo $y
bber0501u29b.bb2.cluster
answered Mar 10 at 13:20
Praveen Kumar BSPraveen Kumar BS
1,7391311
add a comment |
g=`awk -F "@" 'NR==1print $1' filename `
y=`awk -F "@" 'NR==1print $NF' filename `
praveen@praveen:/tmp$ echo $g
49138
praveen@praveen:/tmp$ echo $y
bber0501u29b.bb2.cluster
answered Mar 10 at 13:20
Praveen Kumar BSPraveen Kumar BS
1,7391311
add a comment |
g=`awk -F "@" 'NR==1print $1' filename `
y=`awk -F "@" 'NR==1print $NF' filename `
praveen@praveen:/tmp$ echo $g
49138
praveen@praveen:/tmp$ echo $y
bber0501u29b.bb2.cluster
answered Mar 10 at 13:20
Praveen Kumar BSPraveen Kumar BS
1,7391311
g=`awk -F "@" 'NR==1print $1' filename `
y=`awk -F "@" 'NR==1print $NF' filename `
praveen@praveen:/tmp$ echo $g
49138
praveen@praveen:/tmp$ echo $y
bber0501u29b.bb2.cluster
answered Mar 10 at 13:20
Praveen Kumar BSPraveen Kumar BS
1,7391311
answered Mar 10 at 13:20
Praveen Kumar BSPraveen Kumar BS
1,7391311
answered Mar 10 at 13:20
Praveen Kumar BSPraveen Kumar BS
1,7391311
answered Mar 10 at 13:20
Praveen Kumar BSPraveen Kumar BS
1,7391311
1,7391311
add a comment |
add a comment |
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1
is the data always on line 1? or the first one in the format of user@host? How do we know it's the right data?
– Jeff Schaller♦
Mar 7 at 15:58
It is always in that format, always on line 1, I belive RoVo has the answer
– CFD-Tester
Mar 7 at 16:17