Shell Programming (II)

For In loop statement

#!/bin/bashfor x in one three Fourdo        echo number $xdone

Example: Remove each line in the passwd name and output Hello + name

#!/bin/bashlines= ' Wc-l/home/eko/passwd | Cut-d '-f1 ' for I in ' seq 1 $LINES ' Do        echo ' Hello, ' head-n $i/home/eko/passwd | Tail-n 1 | cut-d:-f1 ' "Done

* SEQ Statement

[Email protected]:/home/eko# seq 1 512345[email protected]:/home/eko# seq 1 2 1013579

For loop

#!/bin/bashfor ((i=1;i<10;i++)) Doecho "Hello $i" done

For file in

#!/bin/bash for    file in/proc/*;  Do  echo $file is file path \!;  Done   #!/bin/bash for    file in $ (LS *.sh)  does  echo $file is file path \!;  Done  

　

While

 while 6  do    Echo $count    Count1))  Done Echo " finished "

Shell Programming (ii)