VersionRelease DateiPhone OS 22008-07-11iPhone OS 32009-06-17iOS 42010-06-08iOS 52011-10-12iOS 62012-09-19iOS 72013-09-18iOS 82014-09-17iOS 8.1 2014-10-20iOS 8.22015-03-09iOS 8.32015-04-08iOS 8.4 2015-06-30iOS 92015-09-16iOS 9.12015-10-22iOS 9.22015-12-08iOS 9.32016-03-21iOS 10.0.12016-09-13iOS 10.12016-10-24iOS 10.22016-12-12iOS 10.2.12017-01-23iOS 10.32017-03-27iOS 10.3.12017-07-19 Creating a default …

Option Description-nPrint line numbers-vShow non-printing characters using ^ and M- notation except LFD and TAB-TShow TAB characters as ^I-EShow linefeed(LF) characters as $-eSame as -vE-bNumber nonempty output lines, overrides -n-Aequivalent …

Option Description-a, –allList all entries including ones that start with a dot-A, –almost-allList all entries excluding . and ..-cSort files by change time-d, –directoryList directory entries-h, –human-readableShow sizes in human …

Absolute vs relative directories To change to an absolutely specified directory, use the entire name, starting with a backslash \, thus: cd /home/username/project/abc If you want to change to a …

Env shebang To execute a script file with the bash executable found in the PATH environment variable by using the executableenv, the first line of a script file must indicate …

#!/bin/bash deploy=false uglify=false while (( $# > 1 )); do case $1 in --deploy) deploy="$2";; --uglify) uglify="$2";; *) break; esac; shift 2 done $deploy && echo "will deploy... deploy = …

$ cat hello.sh #!/bin/bash echo "Hello World" $ bash -x hello.sh + echo Hello World Hello World The -x argument enables you to walk through each line in the script. …

help <command> This will display the Bash help (manual) page for the specified built-in. For example, help unset will show: unset: unset [-f] [-v] [-n] [name ...] Unset values and …

Quoting is important for string expansion in bash. With these, you can control how the bash parses and expandsyour strings. There are two types of quoting: Weak: uses double quotes: …

The following will prompt a user for input, and then store that input as a string (text) in a variable. The variable isthen used to give a message to the …