Tag Archives: cron

ed/x/ubuntu #gnu/#linux #devops #cron gotcha with % chars

ed/x/ubuntu #gnu/#linux #devops #cron gotchacron treats % chars as newlines so you need to escape each and every % with a \

heres a crontab that runs two separate python scripts and put output and errors in two separate files (provided the first script takes longer than a second to run

# crontab
* * * * * python y.py > $(date +\%F-\%H-\%M-\%S).txt 2>&1 ; python z.py > $(date +\%F-\%H-\%M-\%S).txt 2>&1

bash env ; and && gotcha

if you want to change a bash environment variable you need to set it in each and every bash multistatement

$ env TERM=lpr env|grep TERM ; env TERM=lpr env|grep TERM
TERM=lpr
COLORTERM=xfce4-terminal
TERM=lpr
COLORTERM=xfce4-terminal

$ env TERM=lpr env|grep TERM && env TERM=lpr env|grep TERM
TERM=lpr
COLORTERM=xfce4-terminal
TERM=lpr
COLORTERM=xfce4-terminal