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string_operations
108 Treffer, Zuletzt geändert:
with array variables. ==== String Length ==== <code> ${#string} expr length $string expr "$string" : '.*' </code> stringZ=abcABC123ABCabc <code> echo ${#stringZ} # 15 echo `expr length $stringZ` ... # 8 Index expr index $string $substring </code> Numerical position in $string of first charac
test
47 Treffer, Zuletzt geändert:
nteger comparison ==== ---- -eq is equal to <code> if [ "$a" -eq "$b" ]</code> ---- -ne is not equal to <code> if [ "$a" -ne "$b" ]</code> ---- -gt is greater than <code> if [ "$a" -gt "$b" ]</code> ----
monitor
2 Treffer, Zuletzt geändert:
== Directory/File Monitoring with Bash ====== <code> #!/bin/bash # File Monitor # function list () { #ls -l #sleep 1 # more elegant: watch -n 1 "ls -l" } while true; do list | grep $1 done </code>
 
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