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string_operations

48 Treffer, Zuletzt geändert: vor 3 Monaten

ample: ${count:+1} returns 1 (which could mean "true") if count is defined. The first two of these o... ing of the other parameters... Function Returns true if filename is not the empty string and is a file... fl_file_is_readable filename Function Returns true if filename is not the empty string, is a file an... fl_file_is_writable filename Function Returns true if filename is not the empty string, is a file an

test

15 Treffer, Zuletzt geändert: vor 3 Monaten

in single brackets. <code> [[ $a == z* ]] # True if $a starts with an "z" (pattern matching). [[ $a == "z*" ]] # True if $a is equal to z* (literal matching). [ $... word splitting take place. [ "$a" == "z*" ] # True if $a is equal to z* (literal matching). </code>... ison ==== -a logical and exp1 -a exp2 returns true if both exp1 and exp2 are true. ---- -o logical

monitor

1 Treffer, Zuletzt geändert: vor 3 Monaten

() { #ls -l #sleep 1 # more elegant: watch -n 1 "ls -l" } while true; do list | grep $1 done </code>