Difference between revisions of "C Shell Scripting"
From Rizzo_Lab
| Line 1: | Line 1: | ||
| + | ==Header information== | ||
| + | |||
| + | #!/bin/tcsh indicates that the script is writing in tcsh | ||
| + | #PBS -l nodes=1:ppn=2 use 1 node and 2 processors per node | ||
| + | #PBS -l walltime=01:00:00 run for a maximum time of 1 hour | ||
| + | #PBS -N dock6 set the name of the job to 'dock6' | ||
| + | #PBS -M user@sunysb.edu your e-mail address (optional) | ||
| + | #PBS -j oe join the output and error files | ||
| + | #PBS -o pbs.out set the output name to 'pbs.out' | ||
| + | |||
| + | ==General commands== | ||
| + | |||
| + | set var = 'value' assign 'value' to the variable 'var' | ||
| + | @var = $var + 1 modify the assignment of 'var' (increment by 1) | ||
| + | echo $var print the contents of the variable 'var' | ||
| + | |||
| + | ==If / else== | ||
| + | |||
| + | set number = 5 | ||
| + | if (number < 9) then | ||
| + | echo 'less than 9' | ||
| + | else | ||
| + | echo 'Greater than 9' | ||
| + | endif | ||
| + | |||
| + | Expected output: | ||
| + | less than 9 | ||
| + | |||
==Foreach loop== | ==Foreach loop== | ||
| − | foreach | + | |
| − | + | foreach var (1AIK 2PK8 3O3X) | |
| + | mkdir $var | ||
| + | echo 'Just made the new dir' $var | ||
end | end | ||
| + | |||
| + | Expected output: | ||
| + | Just made the new dir 1AIK | ||
| + | Just made the new dir 2PK8 | ||
| + | Just made the new dir 3O3X | ||
==While loop== | ==While loop== | ||
set count = 1 | set count = 1 | ||
| − | + | echo $count | |
| − | + | while ($count <= 10) | |
echo Count = $count | echo Count = $count | ||
@ count ++ | @ count ++ | ||
end | end | ||
| + | |||
| + | Expected output: | ||
| + | 1 | ||
| + | Count = 1 | ||
| + | Count = 2 | ||
| + | Count = 3 | ||
| + | ... | ||
| + | Count = 10 | ||
| + | |||
| + | ==Other things to know== | ||
| + | # Any text that comes after a '#' sign is ignored, other than the special cases shown above. This is a useful way to make comments in the scripts. | ||
Revision as of 09:41, 8 February 2012
Contents
Header information
#!/bin/tcsh indicates that the script is writing in tcsh #PBS -l nodes=1:ppn=2 use 1 node and 2 processors per node #PBS -l walltime=01:00:00 run for a maximum time of 1 hour #PBS -N dock6 set the name of the job to 'dock6' #PBS -M user@sunysb.edu your e-mail address (optional) #PBS -j oe join the output and error files #PBS -o pbs.out set the output name to 'pbs.out'
General commands
set var = 'value' assign 'value' to the variable 'var' @var = $var + 1 modify the assignment of 'var' (increment by 1) echo $var print the contents of the variable 'var'
If / else
set number = 5 if (number < 9) then echo 'less than 9' else echo 'Greater than 9' endif
Expected output:
less than 9
Foreach loop
foreach var (1AIK 2PK8 3O3X)
mkdir $var
echo 'Just made the new dir' $var
end
Expected output:
Just made the new dir 1AIK
Just made the new dir 2PK8
Just made the new dir 3O3X
While loop
set count = 1 echo $count while ($count <= 10) echo Count = $count @ count ++ end
Expected output:
1
Count = 1
Count = 2
Count = 3
...
Count = 10
Other things to know
# Any text that comes after a '#' sign is ignored, other than the special cases shown above. This is a useful way to make comments in the scripts.
