check if file exists bash
FILE=/etc/resolv.conf
if [ -f "$FILE" ]; then
echo "$FILE exists."
else
echo "$FILE does not exist."
ficheck if file exists bash
FILE=/etc/resolv.conf
if [ -f "$FILE" ]; then
echo "$FILE exists."
else
echo "$FILE does not exist."
fibash check if string does not exist in file
Just use grep with flags 'F' (fixed string), 'x' (exact match) and 'q'
(quiet output) in order to check if a word string is in a file
if ! grep -Fxq "string" file.txt; then #do some code...#; fiCopyright © 2021 Codeinu
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