adding "#" to each line 1

[haux]

Hi every one,

How to write script that will add "#" in the begening of each line of my crontab ?

And how to wrtite a script that will delete all the "#" added from the begening of each line in my cron ?

Thank you.

 

[p5wizard]

If you want to stop all jobs from running, IMHO it is better to

- copy the crontab file somewhere safe
- remove the crontab file

Then afterwards:

- install the crontab file again from the safecopy

(to copy/remove)
mkdir -p /var/crontabs_bu
DTTM=$(date +'%Y%m%d%H%M%S')
crontab -l >/var/crontabs_bu/crontab.${LOGNAME}.${DTTM}
(make a remote copy also, whatever suits you)
crontab -r

(to reinstall)
crontab /var/crontabs_bu/crontab.${LOGNAME}.yyyymmddHHMMSS (choose a file that is saved here)




HTH,

p5wizard

 

[haux]

hi,

I am using this solution but I want to learn how to add and remove caracteres in the begening of files.

Thx

 

[AnotherAlan]

Try this;

sed 's/^/#/g' path_to_file > path_to_newfile

man SED.

 

[columb]

crontab -e then

:%s/^/\#/

explanation
:%s - on all lines substitute
/^/ - at the beginning of the line
/\#/ - hash symbol
Note that the # has to be escaped.

Ceci n'est pas une signature
Columb Healy

 

[p5wizard]

Note that by simply editing a crontab file, you won't stop cron jobs from happening. You need to stop/start cron in order to re-read the crontab files or find another way to have cron re-examine the crontab files...


HTH,

p5wizard