| pixie79 | hi, can i create an env variable inside a pre-script whose variable is set by the output of a program, i.e env DATE=`date` | 10:43 |
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| pixie79 | as I have been trying but seem to get left with an empty variable | 10:43 |
| ion | If you add “printf "%s\n" "$DATE" >/tmp/foo” after that, what will /tmp/foo contain? | 10:44 |
| pixie79 | ion, i had been doing echo "TZ:$TZ" >> /tmp/tz which just gave me TZ: | 10:45 |
| ion | Oh, also: you might want just ‘DATE="$(date)"’ or ‘export DATE="$(date)"’ in an sh script. | 10:45 |
| ion | Certainly not “env” in front of it. | 10:46 |
| pixie79 | ok thanks that is correct, do i not need the 'env' in order to make is an environment variable which i can set for the main exec, ( i need to set the Timezone) the exec runs under | 10:49 |
| pixie79 | hm, is this correct to check if a file exists and if it does not then exit printing a warning to daemon log. At the moment it seems to be stopping me when the file exists and printing nothing [ ! -e $COMPFI ] && { echo "please enter CUST and COMP correctly" | logger -t CASS -p daemon.info ; stop; exit 0; } | 10:55 |
| ion | Alas, you can’t teleport environment variables between scripts just by setting them. You’ll need to set them in the main script and exec the final program in the end. | 10:59 |
| pixie79 | ion ok, in that case i will move the tz to a main script, | 11:00 |
| ion | You might want to add something like this to the beginning of the script to debug it: | 11:00 |
| ion | exec >/tmp/jobname.out 2>&1 | 11:00 |
| ion | set -x | 11:00 |
| pixie79 | thanks - i had not seen the exec/set -x before, looks useful, | 11:03 |
| pixie79 | ion: are these expecting bash style tests or something else ? as I am trying '!-e' to stop if the file does not exist | 11:07 |
| ion | if ! [ -e "$file" ]; then stop; exit; fi or something. | 11:08 |
| pixie79 | ok that seems to be working better, now i just need to work out how to set the environment variable TZ so that when i exec the correct timezone is set, I have the value $TZ in the main script now correctly | 11:19 |
| pixie79 | if i do: 'exec TZ=$TZ date' then i get an error that is tries to exec /TZ=Europe/London | 11:21 |
| ion | export TZ | 11:23 |
| ion | exec date | 11:23 |
| pixie79 | arh - thanks thought i had tried that one :) | 11:24 |
| pixie79 | ion: thanks for your help - i now have a working script, 1 down 2 to fix :) | 11:28 |
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