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swapctl : catch error in parameters (non-integer size)

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Pieds-Nus 2022-09-21 12:38:59 +00:00
parent d06e0d3abe
commit 86ff32ae6d
1 changed files with 21 additions and 6 deletions
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27
swapctl.sh
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@ -1,6 +1,12 @@
#!/bin/bash
sep="\n\t#############\n"
# Warning : this script calls heavily on sudo.
# This is not clean.
# But it is easier in my workflow.
# Please consider removing all "sudo" from this file,
# and calling it with administrative rights
# if you want to use it in a proper way.
usage="$0 -d DIR -n NAME -s SIZE -p PRIO add|remove
Add or remove swapfiles to micro-manage disk usage.
-d DIR : set DIRectory to place swapfile in. Default: /mnt
@ -26,7 +32,14 @@ while getopts hp:s:n:d: arg ; do
h) echo -e "$usage" ; exit 0 ;;
d) SWAP_FOLDER="$OPTARG" ;;
n) SWAP_FILENAME="$OPTARG" ;;
s) SWAP_SIZE="$OPTARG" ;;
s)
if test "$OPTARG" -gt 0 2> /dev/null ; then
SWAP_SIZE="$OPTARG"
else
echo -e "invalid argument: -s $OPTARG\t (size expected in MB without suffix)"
exit 1
fi
;;
p) SWAP_PRIO_MAX="$OPTARG" ;;
*) echo -e "$usage" ; echo "Invalid option: $arg"; exit 1 ;;
esac
@ -34,6 +47,8 @@ done
shift $((( $OPTIND - 1 )))
sep="\n\t#############\n"
if test "$1" = "add" ; then
N=$(ls $SWAP_FOLDER/$SWAP_FILENAME* | wc -l)
@ -70,19 +85,19 @@ tmpfile=/tmp/swapctl.fstab
if test $1 = "add" ; then
cat /etc/fstab > $tmpfile
echo -e "$swapfile\t\t\t\t\t\t\t\t\tnone\t\t\tswap\tsw,pri=$prio\t\t\t0\t\t0" >> $tmpfile
echo -e "$swapfile\t\t\t\t\t\t\t\tnone\t\t\tswap\tsw,pri=$prio\t\t\t0\t\t0" >> $tmpfile
else
cat /etc/fstab | grep -v $swapfile > $tmpfile
fi
echo -e "# The lines below this one will be the new fstab file : \n\n $(cat $tmpfile)" | more
echo -e "# The lines below this one will be the new fstab file : \n\n$(cat $tmpfile)" | more
while true ; do
echo -e "$sep What to do with this fstab ?"
echo -e "[ \t\e[4ma\\e[0mccept changes | \e[4me\e[0mdit file | dis\e[4mc\e[0mard changes | show \e[4md\e[0miff ]"
read prompt
echo -e "[ \e[4ma\\e[0mccept changes | \e[4me\e[0mdit file | dis\e[4mc\e[0mard changes | show \e[4md\e[0miff ]"
read -p "[ a | e | c | d ]: " prompt
case $prompt in
a|accept)