Difference: ProtocolsUnixCommandsQuickReference (3 vs. 4)

  META TOPICPARENT 
 name="ComputationList" 

 Unix Commands Quick Reference 
Useful commands and flags that we get tired of looking up...
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+ name="ComputationList"
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+ Disk Space
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+ Disk Space
 The du command is verbose and confusing if you run it without options. Here is how to get a human-readable output and a grand total for the path argument (omit for current directory).

du -hc
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+ Fixing Line Endings
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+ Fixing Line Endings
 If you get odd errors after transferring a text file from a PC or Mac to a Unix machine, it's likely that you have a problem with newline characters. This is especially common when editing files in Excel and saving them to tab-delimited or comma-delimited files for input into. You can generally avoid this problem and fix the line endings by using an industrial strength text editor. This command converts Mac line endings in a saved Excel file to Unix line endings.

tr "\r" "\n" < input.tab >.converted.tab

 Merging commands to be serial on TACC 

Sometimes you have 96 short jobs that you want to run serially 8 at a time on 12 cores rather than requesting 96 cores. This command will combine every 8 lines in a file into one line separated by && so that these commands are now run on one core.

paste -s -d'#######\n' commands | sed "s/#/ \&\& /g" > commands8
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+ Adding your path to the command prompt 

Add to your .bashrc or similar bash startup script:

export PS1='\w\$ '