What does `LOGFILE=${1:-/var/log/syslog}` do?
129350
What is the meaning of ${GZIP_BINDIR-'/bin'} in bash?
133199
What does outputting to /dev/null accomplish in bash scripts?
98561
"POSSIBLE BREAK-IN ATTEMPT!" in /var/log/secure — what does this mean?
57007
What is the meaning of $? in a shell script?
51432
What does the "$#" special parameter mean in Bash?
29571
How do I limit the size of my syslog?
107936
Ubuntu 14.04 System Logging
119229
Why does "grep '.*[s]' file" work and "grep .*[s] file" doesn't?
128374
what is $$ in bash?
108681
What is the $? (dollar question mark) variable in shell scripting?
24264
What is console.log?
32658
What does `:-` mean in a shell script
157072
How to log whatever I enter in terminal to file
123684
Test for non-zero length string in Bash: [ -n "$var" ] or [ "$var" ]
18107
Why do we use "./" (dot slash) to execute a file in Linux/UNIX?
25478
What does ${1+"$@"} mean in a shell script, and how does it differ from "$@"?
69145
Why do you need ./ (dot-slash) before executable or script name to run it in bash?