A shell script is a computer program designed to be run by the Unix shell, a command -line interpreter. The various dialects of shell scripts ... ... <看更多>

Use the && and || double-bracket condition operators instead of the -a and -o test/single-bracket condition operators. This works in bash, also ... ... <看更多>

Problem The execution of a shell command (Radon in this example) does not retrieve an status code different to 0 when there is output (if there is output ... ... <看更多>

It doesn't work because you missed out fi to end your if statement. counter=`ps -ef | grep -c "myApplication"`; if [ $counter -eq 1 ]; then echo "true"; fi. ... <看更多>

Shell Script 的條件宣告是用[] ，if 條件後面需接then ，block 結束後接fi. ... <看更多>