"Bash"의 두 판 사이의 차이
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| − | + | ==manual, refs== | |
| − | $ echo {d..h} | + | *[[man/bash]] |
| + | *[http://tldp.org/LDP/abs/html/index.html Mendel Cooper - Advanced Bash-Scripting Guide (aka. ABS)] ([http://wiki.kldp.org/HOWTO/html/Adv-Bash-Scr-HOWTO/index.html 한글판]) | ||
| + | *[http://www.gnu.org/software/bash/manual/bash.html Bash Reference Manual] | ||
| + | *[http://web.mit.edu/gnu/doc/html/features_toc.html#SEC1 bash features] | ||
| + | *[http://tldp.org/HOWTO/Bash-Prog-Intro-HOWTO.html#toc7 BASH Programming - Introduction HOW-TO] ★ | ||
| + | *[http://tldp.org/LDP/Bash-Beginners-Guide/html/index.html Bash Guide for Beginners] | ||
| + | *[http://www.linuxconfig.org/Bash_scripting_Tutorial Bash scripting Tutorial] | ||
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| + | ==bash expansion : ranges== | ||
| + | <pre>$ echo {d..h} | ||
d e f g h | d e f g h | ||
$ echo {d..Z} | $ echo {d..Z} | ||
| − | d c b a _ ^ ] [ Z | + | d c b a _ ^ ] [ Z</pre> |
| + | For more information, refer [http://wiki.bash-hackers.org/syntax/expansion/brace#ranges wiki.bash-hackers.org]. | ||
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| − | ### cp file1 file2와 같다 | + | == redirection == |
| − | $ cat < file1 > file2 | + | <pre>### cp file1 file2와 같다 |
| + | $ cat < file1 > file2</pre> | ||
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| − | </ | + | ==<code>nice</code>== |
| + | <pre>Usage: nice [OPTION] [COMMAND [ARG]...] | ||
| + | Run COMMAND with an adjusted niceness, which affects process scheduling. | ||
| + | With no COMMAND, print the current niceness. Niceness values range from | ||
| + | -20 (most favorable to the process) to 19 (least favorable to the process).</pre> | ||
| − | < | + | ==string : <code><nowiki>$''</nowiki></code>== |
| − | $ # Single quotation in single qoute | + | <pre>$ # Single quotation in single qoute |
$ # http://stackoverflow.com/a/16605140/766330 | $ # http://stackoverflow.com/a/16605140/766330 | ||
$ echo \'sdlfkjsldf\' | sed $'s/\'//' | $ echo \'sdlfkjsldf\' | sed $'s/\'//' | ||
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$ # $'string' : this is special. | $ # $'string' : this is special. | ||
$ # below line won't work. | $ # below line won't work. | ||
| − | $ # echo \'sdlfkjsldf\' | sed 's/\'// | + | $ # echo \'sdlfkjsldf\' | sed 's/\'//‘</pre> |
| + | [http://stackoverflow.com/a/16605140/766330] | ||
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| − | $ # 'or' | + | ==or== |
| + | <pre>$ # 'or' | ||
$ if [ -z "$1" ] || [ -z "$2" ]; then | $ if [ -z "$1" ] || [ -z "$2" ]; then | ||
> echo "Usage: `basename $0` rslt_file target_folder" | > echo "Usage: `basename $0` rslt_file target_folder" | ||
| − | > fi | + | > fi</pre> |
| − | + | ref. [http://www.tldp.org/LDP/Bash-Beginners-Guide/html/sect_07_01.html expressions used with if] | |
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| − | [http://www.tldp.org/LDP/Bash-Beginners-Guide/html/sect_07_01.html expressions used with if] | ||
2017년 3월 30일 (목) 23:41 판
manual, refs
- man/bash
- Mendel Cooper - Advanced Bash-Scripting Guide (aka. ABS) (한글판)
- Bash Reference Manual
- bash features
- BASH Programming - Introduction HOW-TO ★
- Bash Guide for Beginners
- Bash scripting Tutorial
bash expansion : ranges
$ echo {d..h}
d e f g h
$ echo {d..Z}
d c b a _ ^ ] [ Z
For more information, refer wiki.bash-hackers.org.
redirection
### cp file1 file2와 같다 $ cat < file1 > file2
nice
Usage: nice [OPTION] [COMMAND [ARG]...] Run COMMAND with an adjusted niceness, which affects process scheduling. With no COMMAND, print the current niceness. Niceness values range from -20 (most favorable to the process) to 19 (least favorable to the process).
string : $''
$ # Single quotation in single qoute $ # http://stackoverflow.com/a/16605140/766330 $ echo \'sdlfkjsldf\' | sed $'s/\'//' sdlfkjsldf' $ # $'string' : this is special. $ # below line won't work. $ # echo \'sdlfkjsldf\' | sed 's/\'//‘
or
$ # 'or' $ if [ -z "$1" ] || [ -z "$2" ]; then > echo "Usage: `basename $0` rslt_file target_folder" > fi