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Shell Programming and Scripting

empty crontab

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Top Forums Shell Programming and Scripting empty crontab
# 1  
Old 04-13-2009
empty crontab
how to create empty crontab using shell script?
# 2  
Old 04-13-2009
Code:
crontab -e << EOF
dG:wq!
EOF

# 3  
Old 04-13-2009
actually this deletes all lines in your current crontab.
is this what you want ?!?!?
# 4  
Old 04-13-2009
no..
i just want to create new crontab if it is not there...
else update existing one
# 5  
Old 04-13-2009
it's automatically done through crontab -e.

Code:
export EDITOR=vi

crontab -e << EOF
aaddwhatever you want here^[:wq
EOF

where ^[ is the ESCAPE key entered in vi through CONTROL-V,ESCAPE sequence.
# 6  
Old 04-13-2009
\crontab -l
if [ $? -ne 0 ]; then
\crontab -e << EOF
else
\crontab -l > $tmpfile
fi

will it work?
# 7  
Old 04-13-2009
#!/bin/sh
export EDITOR=vi
osname=`uname`
if [ $osname = "Linux" ]; then
\crontab -l
if [ $? -ne 0 ]; then
\crontab -e << EOF
^[:wq
EOF
fi
else
\crontab -l
fi

giving error " line 14: syntax error: unexpected end of file"
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