Difference between revisions of "User:Minooz/RepoSyncProj/Bash"
< User:Minooz | RepoSyncProj
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(→Tips) |
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:[http://www.faqs.org/docs/Linux-HOWTO/Bash-Prog-Intro-HOWTO.html Tutorial] | :[http://www.faqs.org/docs/Linux-HOWTO/Bash-Prog-Intro-HOWTO.html Tutorial] | ||
:[http://arachnoid.com/linux/shell_programming.html Shell Programming] | :[http://arachnoid.com/linux/shell_programming.html Shell Programming] | ||
| + | : [http://www.linux.org/lessons/advanced/x1110.html Linux org] | ||
| + | ==Tips== | ||
| + | *Watch the spaces | ||
| + | <source lang=bash> | ||
| + | if [ -d "$tmpInternal" ]; then | ||
| + | rm -r $tmpInternal >> $dateError.txt | ||
| + | elif [ -d "$tmpExternal" ]; then | ||
| + | rm -r $tmExternal >> $dateError.txt | ||
| + | fi | ||
| + | </source> | ||
| + | |||
| + | |||
| + | * The increment operator in bash | ||
| + | <source lang=bash> | ||
| + | while [ $revTmpInternal -lt $revInternal ]; do | ||
| + | ((revTmpInternal++)) | ||
| + | done | ||
| + | </source> | ||
| + | |||
| + | |||
| + | * to check if a file exists: | ||
| + | <source lang=bash> | ||
| + | |||
| + | if [ -f m.patch ]; then | ||
| + | rm *.patch | ||
| + | fi | ||
| + | </source> | ||
| + | |||
| + | |||
| + | * To check if multiple files exist:http://www.ducea.com/2009/03/05/bash-tips-if-e-wildcard-file-check-too-many-arguments/ | ||
| + | <source lang=bash> | ||
| + | errors=$(ls Error*.txt 2> /dev/null | wc -l) | ||
| + | if [ "$errors" != "0" ]; then | ||
| + | rm Error*.txt | ||
| + | fi | ||
| + | </source> | ||
| + | :Also this solution @ http://kenfallon.com/?p=4 | ||
Latest revision as of 16:27, 19 October 2010
Bash Scripting Help
Tips
- Watch the spaces
if [ -d "$tmpInternal" ]; then
rm -r $tmpInternal >> $dateError.txt
elif [ -d "$tmpExternal" ]; then
rm -r $tmExternal >> $dateError.txt
fi
- The increment operator in bash
while [ $revTmpInternal -lt $revInternal ]; do
((revTmpInternal++))
done
- to check if a file exists:
if [ -f m.patch ]; then
rm *.patch
fi
- To check if multiple files exist:http://www.ducea.com/2009/03/05/bash-tips-if-e-wildcard-file-check-too-many-arguments/
errors=$(ls Error*.txt 2> /dev/null | wc -l)
if [ "$errors" != "0" ]; then
rm Error*.txt
fi- Also this solution @ http://kenfallon.com/?p=4
