Bash Scripting not able to parse remote SSH commands correctly
0
I'm trying to build a script to scp somefiles to another machine, but I'm trying to do some checkups before starting the actual SCP.
One of the checks is to see if there are somefiles (collectl raw files) on a remote host.
This is the part I have from my script:
ssh -T $USERNAME@$HOSTNAME bash << EOF
shopt -s nullglob
FILENAMES=( ${RAWDIR}/*${DATE}* )
if (( ${#FILENAMES[@]} )) && [[ -e ${FILENAMES[0]} ]]
then
echo "At least one file matches the name" >&2
exit 0
else
echo "No files exist" >&2
exit 1
fi
EOF
But I get this error:
tooladm@mxmcato01:tooladm/scripts> bash -x colplot.sh 20190201
+ PLOTDIR=/var/lib/zabbix/collectlfiles
+ RAWDIR=/opt/app/collectl
+ IMDG=3
+ HOSTNAME=mxmcaim03
+ USERNAME=abpdg3
+ DATE=20190201
+ SSH_CONN=zabbix@mxmcamon05
+ SEARCH_STRING='/opt/app/collectl/mxmcaim03-20190201*'
+ [[ 1 -ne 1 ]]
+ [[ 20190201 =~ ^[0-9]{8}$ ]]
+ date -d 20190201
+ is_valid=0
+ [[ 0 -ne 0 ]]
+ file_exists
+ ssh -T zabbix@mxmcamon05
FILES ARE NOT THERE, PROCEEDING WITH THE IMPORT
+ (( 0 ))
+ import_files
+ ssh -T abpdg3@mxmcaim03 bash
bash: line 5: unexpected argument `]]' to conditional unary operator
bash: line 5: syntax error near `]]'
bash: line 5: `if (( 0 )) && [[ -e ]]'
What I had to do to make it work as expected is creating a second script the same hosts from where I'm executing this script and redirect its out to my ssh connection, like this:
lookup_remote_files()
{
ssh -T $USERNAME@$HOSTNAME "bash -s" < ./colplot_remote.sh "$DATE"
}
bash -x colplot.sh 20190201
+ PLOTDIR=/var/lib/zabbix/collectlfiles
+ RAWDIR=/opt/app/collectl
+ IMDG=3
+ HOSTNAME=mxmcaim03
+ USERNAME=abpdg3
+ DATE=20190201
+ SSH_CONN=zabbix@mxmcamon05
+ SEARCH_STRING='/opt/app/collectl/mxmcaim03-20190201*'
+ [[ 1 -ne 1 ]]
+ [[ 20190201 =~ ^[0-9]{8}$ ]]
+ date -d 20190201
+ is_valid=0
+ [[ 0 -ne 0 ]]
+ lookup_local_files
+ ssh -T zabbix@mxmcamon05
FILES ARE NOT THERE, PROCEEDING WITH THE IMPORT
+ (( 0 ))
+ lookup_remote_files
+ ssh -T abpdg3@mxmcaim03 'bash -s' 20190201
At least one file matches the name
+ (( 0 ))
Can someone tell how can I do to make this work from within the same script please?
Thanks.
bash ssh here-document
asked 17 mins ago
Eduardo Santiago LópezEduardo Santiago López
34
add a comment |
0
I'm trying to build a script to scp somefiles to another machine, but I'm trying to do some checkups before starting the actual SCP.
One of the checks is to see if there are somefiles (collectl raw files) on a remote host.
This is the part I have from my script:
ssh -T $USERNAME@$HOSTNAME bash << EOF
shopt -s nullglob
FILENAMES=( ${RAWDIR}/*${DATE}* )
if (( ${#FILENAMES[@]} )) && [[ -e ${FILENAMES[0]} ]]
then
echo "At least one file matches the name" >&2
exit 0
else
echo "No files exist" >&2
exit 1
fi
EOF
But I get this error:
tooladm@mxmcato01:tooladm/scripts> bash -x colplot.sh 20190201
+ PLOTDIR=/var/lib/zabbix/collectlfiles
+ RAWDIR=/opt/app/collectl
+ IMDG=3
+ HOSTNAME=mxmcaim03
+ USERNAME=abpdg3
+ DATE=20190201
+ SSH_CONN=zabbix@mxmcamon05
+ SEARCH_STRING='/opt/app/collectl/mxmcaim03-20190201*'
+ [[ 1 -ne 1 ]]
+ [[ 20190201 =~ ^[0-9]{8}$ ]]
+ date -d 20190201
+ is_valid=0
+ [[ 0 -ne 0 ]]
+ file_exists
+ ssh -T zabbix@mxmcamon05
FILES ARE NOT THERE, PROCEEDING WITH THE IMPORT
+ (( 0 ))
+ import_files
+ ssh -T abpdg3@mxmcaim03 bash
bash: line 5: unexpected argument `]]' to conditional unary operator
bash: line 5: syntax error near `]]'
bash: line 5: `if (( 0 )) && [[ -e ]]'
What I had to do to make it work as expected is creating a second script the same hosts from where I'm executing this script and redirect its out to my ssh connection, like this:
lookup_remote_files()
{
ssh -T $USERNAME@$HOSTNAME "bash -s" < ./colplot_remote.sh "$DATE"
}
bash -x colplot.sh 20190201
+ PLOTDIR=/var/lib/zabbix/collectlfiles
+ RAWDIR=/opt/app/collectl
+ IMDG=3
+ HOSTNAME=mxmcaim03
+ USERNAME=abpdg3
+ DATE=20190201
+ SSH_CONN=zabbix@mxmcamon05
+ SEARCH_STRING='/opt/app/collectl/mxmcaim03-20190201*'
+ [[ 1 -ne 1 ]]
+ [[ 20190201 =~ ^[0-9]{8}$ ]]
+ date -d 20190201
+ is_valid=0
+ [[ 0 -ne 0 ]]
+ lookup_local_files
+ ssh -T zabbix@mxmcamon05
FILES ARE NOT THERE, PROCEEDING WITH THE IMPORT
+ (( 0 ))
+ lookup_remote_files
+ ssh -T abpdg3@mxmcaim03 'bash -s' 20190201
At least one file matches the name
+ (( 0 ))
Can someone tell how can I do to make this work from within the same script please?
Thanks.
bash ssh here-document
asked 17 mins ago
Eduardo Santiago LópezEduardo Santiago López
34
If you're usingssh ... <<EOF, all the variables in the here-doc will be expanded on the local, not on the remote machine. Is that what you want? Tryssh .. <<'EOF'instead (single quotes aroundEOF).
– Uncle Billy
7 mins ago
Yes, I've tried that, but given that I'm using some local variables as well, it doesn't work either. Thanks
– Eduardo Santiago López
6 mins ago
Then you'll have to escape ($) the variables that should be expanded on the remote machine.
– Uncle Billy
4 mins ago
I've also tried that, and nothing seems to work.
– Eduardo Santiago López
2 mins ago
The error message shows that${FILENAMES[0]}is expanded to nothing on the local machine.
– Uncle Billy
27 secs ago
add a comment |
0
0
0
I'm trying to build a script to scp somefiles to another machine, but I'm trying to do some checkups before starting the actual SCP.
One of the checks is to see if there are somefiles (collectl raw files) on a remote host.
This is the part I have from my script:
ssh -T $USERNAME@$HOSTNAME bash << EOF
shopt -s nullglob
FILENAMES=( ${RAWDIR}/*${DATE}* )
if (( ${#FILENAMES[@]} )) && [[ -e ${FILENAMES[0]} ]]
then
echo "At least one file matches the name" >&2
exit 0
else
echo "No files exist" >&2
exit 1
fi
EOF
But I get this error:
tooladm@mxmcato01:tooladm/scripts> bash -x colplot.sh 20190201
+ PLOTDIR=/var/lib/zabbix/collectlfiles
+ RAWDIR=/opt/app/collectl
+ IMDG=3
+ HOSTNAME=mxmcaim03
+ USERNAME=abpdg3
+ DATE=20190201
+ SSH_CONN=zabbix@mxmcamon05
+ SEARCH_STRING='/opt/app/collectl/mxmcaim03-20190201*'
+ [[ 1 -ne 1 ]]
+ [[ 20190201 =~ ^[0-9]{8}$ ]]
+ date -d 20190201
+ is_valid=0
+ [[ 0 -ne 0 ]]
+ file_exists
+ ssh -T zabbix@mxmcamon05
FILES ARE NOT THERE, PROCEEDING WITH THE IMPORT
+ (( 0 ))
+ import_files
+ ssh -T abpdg3@mxmcaim03 bash
bash: line 5: unexpected argument `]]' to conditional unary operator
bash: line 5: syntax error near `]]'
bash: line 5: `if (( 0 )) && [[ -e ]]'
What I had to do to make it work as expected is creating a second script the same hosts from where I'm executing this script and redirect its out to my ssh connection, like this:
lookup_remote_files()
{
ssh -T $USERNAME@$HOSTNAME "bash -s" < ./colplot_remote.sh "$DATE"
}
bash -x colplot.sh 20190201
+ PLOTDIR=/var/lib/zabbix/collectlfiles
+ RAWDIR=/opt/app/collectl
+ IMDG=3
+ HOSTNAME=mxmcaim03
+ USERNAME=abpdg3
+ DATE=20190201
+ SSH_CONN=zabbix@mxmcamon05
+ SEARCH_STRING='/opt/app/collectl/mxmcaim03-20190201*'
+ [[ 1 -ne 1 ]]
+ [[ 20190201 =~ ^[0-9]{8}$ ]]
+ date -d 20190201
+ is_valid=0
+ [[ 0 -ne 0 ]]
+ lookup_local_files
+ ssh -T zabbix@mxmcamon05
FILES ARE NOT THERE, PROCEEDING WITH THE IMPORT
+ (( 0 ))
+ lookup_remote_files
+ ssh -T abpdg3@mxmcaim03 'bash -s' 20190201
At least one file matches the name
+ (( 0 ))
Can someone tell how can I do to make this work from within the same script please?
Thanks.
bash ssh here-document
asked 17 mins ago
Eduardo Santiago LópezEduardo Santiago López
34
I'm trying to build a script to scp somefiles to another machine, but I'm trying to do some checkups before starting the actual SCP.
One of the checks is to see if there are somefiles (collectl raw files) on a remote host.
This is the part I have from my script:
ssh -T $USERNAME@$HOSTNAME bash << EOF
shopt -s nullglob
FILENAMES=( ${RAWDIR}/*${DATE}* )
if (( ${#FILENAMES[@]} )) && [[ -e ${FILENAMES[0]} ]]
then
echo "At least one file matches the name" >&2
exit 0
else
echo "No files exist" >&2
exit 1
fi
EOF
But I get this error:
tooladm@mxmcato01:tooladm/scripts> bash -x colplot.sh 20190201
+ PLOTDIR=/var/lib/zabbix/collectlfiles
+ RAWDIR=/opt/app/collectl
+ IMDG=3
+ HOSTNAME=mxmcaim03
+ USERNAME=abpdg3
+ DATE=20190201
+ SSH_CONN=zabbix@mxmcamon05
+ SEARCH_STRING='/opt/app/collectl/mxmcaim03-20190201*'
+ [[ 1 -ne 1 ]]
+ [[ 20190201 =~ ^[0-9]{8}$ ]]
+ date -d 20190201
+ is_valid=0
+ [[ 0 -ne 0 ]]
+ file_exists
+ ssh -T zabbix@mxmcamon05
FILES ARE NOT THERE, PROCEEDING WITH THE IMPORT
+ (( 0 ))
+ import_files
+ ssh -T abpdg3@mxmcaim03 bash
bash: line 5: unexpected argument `]]' to conditional unary operator
bash: line 5: syntax error near `]]'
bash: line 5: `if (( 0 )) && [[ -e ]]'
What I had to do to make it work as expected is creating a second script the same hosts from where I'm executing this script and redirect its out to my ssh connection, like this:
lookup_remote_files()
{
ssh -T $USERNAME@$HOSTNAME "bash -s" < ./colplot_remote.sh "$DATE"
}
bash -x colplot.sh 20190201
+ PLOTDIR=/var/lib/zabbix/collectlfiles
+ RAWDIR=/opt/app/collectl
+ IMDG=3
+ HOSTNAME=mxmcaim03
+ USERNAME=abpdg3
+ DATE=20190201
+ SSH_CONN=zabbix@mxmcamon05
+ SEARCH_STRING='/opt/app/collectl/mxmcaim03-20190201*'
+ [[ 1 -ne 1 ]]
+ [[ 20190201 =~ ^[0-9]{8}$ ]]
+ date -d 20190201
+ is_valid=0
+ [[ 0 -ne 0 ]]
+ lookup_local_files
+ ssh -T zabbix@mxmcamon05
FILES ARE NOT THERE, PROCEEDING WITH THE IMPORT
+ (( 0 ))
+ lookup_remote_files
+ ssh -T abpdg3@mxmcaim03 'bash -s' 20190201
At least one file matches the name
+ (( 0 ))
Can someone tell how can I do to make this work from within the same script please?
Thanks.
bash ssh here-document
bash ssh here-document
asked 17 mins ago
Eduardo Santiago LópezEduardo Santiago López
34
asked 17 mins ago
Eduardo Santiago LópezEduardo Santiago López
34
asked 17 mins ago
Eduardo Santiago LópezEduardo Santiago López
34
asked 17 mins ago
Eduardo Santiago LópezEduardo Santiago López
34
asked 17 mins ago
Eduardo Santiago LópezEduardo Santiago López
34
34
If you're usingssh ... <<EOF, all the variables in the here-doc will be expanded on the local, not on the remote machine. Is that what you want? Tryssh .. <<'EOF'instead (single quotes aroundEOF).
– Uncle Billy
7 mins ago
Yes, I've tried that, but given that I'm using some local variables as well, it doesn't work either. Thanks
– Eduardo Santiago López
6 mins ago
Then you'll have to escape ($) the variables that should be expanded on the remote machine.
– Uncle Billy
4 mins ago
I've also tried that, and nothing seems to work.
– Eduardo Santiago López
2 mins ago
The error message shows that${FILENAMES[0]}is expanded to nothing on the local machine.
– Uncle Billy
27 secs ago
add a comment |
If you're usingssh ... <<EOF, all the variables in the here-doc will be expanded on the local, not on the remote machine. Is that what you want? Tryssh .. <<'EOF'instead (single quotes aroundEOF).
– Uncle Billy
7 mins ago
Yes, I've tried that, but given that I'm using some local variables as well, it doesn't work either. Thanks
– Eduardo Santiago López
6 mins ago
Then you'll have to escape ($) the variables that should be expanded on the remote machine.
– Uncle Billy
4 mins ago
I've also tried that, and nothing seems to work.
– Eduardo Santiago López
2 mins ago
The error message shows that${FILENAMES[0]}is expanded to nothing on the local machine.
– Uncle Billy
27 secs ago
If you're using
ssh ... <<EOF, all the variables in the here-doc will be expanded on the local, not on the remote machine. Is that what you want? Try ssh .. <<'EOF' instead (single quotes around EOF).– Uncle Billy
7 mins ago
If you're using
ssh ... <<EOF, all the variables in the here-doc will be expanded on the local, not on the remote machine. Is that what you want? Try ssh .. <<'EOF' instead (single quotes around EOF).– Uncle Billy
7 mins ago
Yes, I've tried that, but given that I'm using some local variables as well, it doesn't work either. Thanks
– Eduardo Santiago López
6 mins ago
Yes, I've tried that, but given that I'm using some local variables as well, it doesn't work either. Thanks
– Eduardo Santiago López
6 mins ago
Then you'll have to escape (
$) the variables that should be expanded on the remote machine.– Uncle Billy
4 mins ago
Then you'll have to escape (
$) the variables that should be expanded on the remote machine.– Uncle Billy
4 mins ago
I've also tried that, and nothing seems to work.
– Eduardo Santiago López
2 mins ago
I've also tried that, and nothing seems to work.
– Eduardo Santiago López
2 mins ago
The error message shows that
${FILENAMES[0]} is expanded to nothing on the local machine.– Uncle Billy
27 secs ago
The error message shows that
${FILENAMES[0]} is expanded to nothing on the local machine.– Uncle Billy
27 secs ago
add a comment |
0
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If you're using
ssh ... <<EOF, all the variables in the here-doc will be expanded on the local, not on the remote machine. Is that what you want? Tryssh .. <<'EOF'instead (single quotes aroundEOF).– Uncle Billy
7 mins ago
Yes, I've tried that, but given that I'm using some local variables as well, it doesn't work either. Thanks
– Eduardo Santiago López
6 mins ago
Then you'll have to escape (
$) the variables that should be expanded on the remote machine.– Uncle Billy
4 mins ago
I've also tried that, and nothing seems to work.
– Eduardo Santiago López
2 mins ago
The error message shows that
${FILENAMES[0]}is expanded to nothing on the local machine.– Uncle Billy
27 secs ago